Kinases and phosphatases

[0001] This invention relates to nucleic acid and amino acid sequences of kinases and phosphatases and to the use of these sequences in the diagnosis, treatment, and prevention of cardiovascular diseases, immune system disorders, neurological disorders, disorders affecting growth and development, lipid disorders, cell proliferative disorders, and cancers, and in the assessment of the effects of exogenous compounds on the expression of nucleic acid and amino acid sequences of kinases and phosphatases.

[0002] Reversible protein phosphorylation is the ubiquitous strategy used to control many of the intracellular events in eukaryotic cells. It is estimated that more than ten percent of proteins active in a typical mammalian cell are phosphorylated. Kinases catalyze the transfer of high-energy phosphate groups from adenosine triphosphate (ATP) to target proteins on the hydroxyamino acid residues serine, threonine, or tyrosine. Phosphatases, in contrast, remove these phosphate groups. Extracellular signals including hormones, neurotransmitters, and growth and differentiation factors can activate kinases, which can occur as cell surface receptors or as the activator of the final effector protein, as well as other locations along the signal transduction pathway. Cascades of kinases occur, as well as kinases sensitive to second messenger molecules. This system allows for the amplification of weak signals (low abundance growth factor molecules, for example), as well as the synthesis of many weak signals into an all-or-nothing response. Phosphatases, then, are essential in determining the extent of phosphorylation in the cell and, together with kinases, regulate key cellular processes such as metabolic enzyme activity, proliferation, cell growth and differentiation, cell adhesion, and cell cycle progression.

[0003] Kinases

[0004] Kinases comprise the largest known enzyme superfamily and vary widely in their target molecules. Kinases catalyze the transfer of high energy phosphate groups from a phosphate donor to a phosphate acceptor. Nucleotides usually serve as the phosphate donor in these reactions, with most kinases utilizing adenosine triphosphate (ATP). The phosphate acceptor can be any of a variety of molecules, including nucleosides, nucleotides, lipids, carbohydrates, and proteins. Proteins are phosphorylated on hydroxyamino acids. Addition of a phosphate group alters the local charge on the acceptor molecule, causing internal conformational changes and potentially influencing intermolecular contacts. Reversible protein phosphorylation is the primary method for regulating protein activity in eukaryotic cells. In general, proteins are activated by phosphorylation in response to extracellular signals such as hormones, neurotransmitters, and growth and differentiation factors. The activated proteins initiate the cell's intracellular response by way of intracellular signaling pathways and second messenger molecules such as cyclic nucleotides, calcium-calmodulin, inositol, and various mitogens, that regulate protein phosphorylation.

[0005] Kinases are involved in all aspects of a cell's function, from basic metabolic processes, such as glycolysis, to cell-cycle regulation, differentiation, and communication with the extracellular environment through signal transduction cascades. Inappropriate phosphorylation of proteins in cells has been linked to changes in cell cycle progression and cell differentiation. Changes in the cell cycle have been linked to induction of apoptosis or cancer. Changes in cell differentiation have been linked to diseases and disorders of the reproductive system, immune system, and skeletal muscle.

[0006] There are two classes of protein kinases. One class, protein tyrosine kinases (PTKs), phosphorylates tyrosine residues, and the other class, protein serine/threonine kinases (STKs), phosphorylates serine and threonine residues. Some PTKs and STKs possess structural characteristics of both families and have dual specificity for both tyrosine and serine/threonine residues. Almost all kinases contain a conserved 250-300 amino acid catalytic domain containing specific residues and sequence motifs characteristic of the kinase family. The protein kinase catalytic domain can be further divided into 11 subdomains. N-terminal subdomains I-IV fold into a two-lobed structure which binds and orients the ATP donor molecule, and subdomain V spans the two lobes. C-terminal subdomains VI-XI bind the protein substrate and transfer the gamma phosphate from ATP to the hydroxyl group of a tyrosine, serine, or threonine residue. Each of the 11 subdomains contains specific catalytic residues or amino acid motifs characteristic of that subdomain. For example, subdomain I contains an 8-amino acid glycine-rich ATP binding consensus motif, subdomain II contains a critical lysine residue required for maximal catalytic activity, and subdomains VI through IX comprise the highly conserved catalytic core. PTKs and STKs also contain distinct sequence motifs in subdomains VI and VIII which may confer hydroxyamino acid specificity.

[0007] In addition, kinases may also be classified by additional amino acid sequences, generally between 5 and 100 residues, which either flank or occur within the kinase domain. These additional amino acid sequences regulate kinase activity and determine substrate specificity. (Reviewed in Hardie, G. and S. Hanks (1995) The Protein Kinase Facts Book, Vol I, pp. 17-20 Academic Press, San Diego Calif.). In particular, two protein kinase signature sequences have been identified in the kinase domain, the first containing an active site lysine residue involved in ATP binding, and the second containing an aspartate residue important for catalytic activity. If a protein analyzed includes the two protein kinase signatures, the probability of that protein being a protein kinase is close to 100% (PROSITE: PDOC00100, November 1995).

[0008] Protein Tyrosine Kinases

[0009] Protein tyrosine kinases (PTKs) may be classified as either transmembrane, receptor PTKs or nontransmembrane, nonreceptor PTK proteins. Transmembrane tyrosine kinases function as receptors for most growth factors. Growth factors bind to the receptor tyrosine kinase (RTK), which causes the receptor to phosphorylate itself (autophosphorylation) and specific intracellular second messenger proteins. Growth factors (GF) that associate with receptor PTKs include epidermal GF, platelet-derived GF, fibroblast GF, hepatocyte GF, insulin and insulin-like GFs, nerve GF, vascular endothelial GF, and macrophage colony stimulating factor.

[0010] Nontransmembrane, nonreceptor PTKs lack transmembrane regions and, instead, form signaling complexes with the cytosolic domains of plasma membrane receptors. Receptors that function through non-receptor PTKs include those for cytokines and hormones (growth hormone and prolactin), and antigen-specific receptors on T and B lymphocytes.

[0011] Many PTKs were first identified as oncogene products in cancer cells in which PTK activation was no longer subject to normal cellular controls. In fact, about one third of the known oncogenes encode PTKs. Furthermore, cellular transformation (oncogenesis) is often accompanied by increased tyrosine phosphorylation activity (Charbonneau, R and N. K. Tonks (1992) Annu. Rev. Cell Biol. 8:463-493). Regulation of PTK activity may therefore be an important strategy in controlling some types of cancer.

[0012] Protein Serine/Threonine Kinases

[0013] Protein serine/threonine kinases (STKs) are nontransmembrane proteins. A subclass of STKs are known as ERKs (extracellular signal regulated kinases) or MAPs (mitogen-activated protein kinases) and are activated after cell stimulation by a variety of hormones and growth factors. Cell stimulation induces a signaling cascade leading to phosphorylation of MEK (MAP/ERK kinase) which, in turn, activates ERK via serine and threonine phosphorylation. A varied number of proteins represent the downstream effectors for the active ERK and implicate it in the control of cell proliferation and differentiation, as well as regulation of the cytoskeleton. Activation of ERK is normally transient, and cells possess dual specificity phosphatases that are responsible for its down-regulation. Also, numerous studies have shown that elevated ERK activity is associated with some cancers. Other STKs include the second messenger dependent protein kinases such as the cyclic-AMP dependent protein kinases (PKA), calcium-calmodulin (CaM) dependent protein kinases, and the mitogen-activated protein kinases (MAP); the cyclin-dependent protein kinases; checkpoint and cell cycle kinases; Numb-associated kinase (Nak); human Fused hFu); proliferation-related kinases; 5-AMP-activated protein kinases; and kinases involved in apoptosis.

[0014] One member of the ERK family of MAP kinases, ERK 7, is a novel 61-kDa protein that has motif similarities to ERK1 and ERK2, but is not activated by extracellular stimuli as are ERK1 and ERK2 nor by the common activators, c-Jun N-terminal kinase (JNK) and p38 kinase. ERK7 regulates its nuclear localization and inhibition of growth through its C-terminal tail, not through the kinase domain as is typical with other MAP kinases (Abe, M. K. (1999) Mol. Cell. Biol. 19:1301-1312).

[0015] The second messenger dependent protein kinases primarily mediate the effects of second messengers such as cyclic AMP (cAMP), cyclic GMP, inositol triphosphate, phosphatidylinositol, 3,4,5-triphosphate, cyclic ADP ribose, arachidonic acid, diacylglycerol and calcium-calmodulin. The PKAs are involved in mediating hormone-induced cellular responses and are activated by cAMP produced within the cell in response to hormone stimulation. cAMP is an intracellular mediator of hormone action in all animal cells that have been studied. Hormone-induced cellular responses include thyroid hormone secretion, cortisol secretion, progesterone secretion, glycogen breakdown, bone resorption, and regulation of heart rate and force of heart muscle contraction. PKA is found in all animal cells and is thought to account for the effects of cAMP in most of these cells. Altered PKA expression is implicated in a variety of disorders and diseases including cancer, thyroid disorders, diabetes, atherosclerosis, and cardiovascular disease (Isselbacher, K. J. et al. (1994) Harrison's Principles of Internal Medicine, McGraw-Hill, New York N.Y., pp. 416-431, 1887).

[0016] The casein kinase I (CKI) gene family is another subfamily of serine/threonine protein kinases. This continuously expanding group of kinases have been implicated in the regulation of numerous cytoplasmic and nuclear processes, including cell metabolism and DNA replication and repair. CKI enzymes are present in the membranes, nucleus, cytoplasm and cytoskeleton of eukaryotic cells, and on the mitotic spindles of mammalian cells (Fish, K. J. et al. (1995) J. Biol. Chem. 270:14875-14883).

[0017] The CKI family members all have a short amino-terminal domain of 9-76 amino acids, a highly conserved kinase domain of 284 amino acids, and a variable carboxyl-terminal domain that ranges from 24 to over 200 amino acids in length (Cegielska, A. et al. (1998) J. Biol. Chem. 273:1357-1364). The CKI family is comprised of highly related proteins, as seen by the identification of isoforms of casein kinase I from a variety of sources. There are at least five mammalian isoforms, , , , , and . Fish et al. identified CKI-epsilon from a human placenta cDNA library. It is a basic protein of 416 amino acids and is closest to CKI-delta. Through recombinant expression, it was determined to phosphorylate known CKI substrates and was inhibited by the CKI-specific inhibitor CKI-7. The human gene for CKI-epsilon was able to rescue yeast with a slow-growth phenotype caused by deletion of the yeast CKI locus, HRR250 (Fish et al., supra).

[0018] The mammalian circadian mutation tau was found to be a semidominant autosomal allele of CKI-epsilon that markedly shortens period length of circadian rhythm in Syrian hamsters. The tau locus is encoded by casein kinase I-epsilon, which is also a homolog of the Drosophila circadian gene double-time. Studies of both the wildtype and tau mutant CKI-epsilon enzyme indicated that the mutant enzyme has a noticeable reduction in the maximum velocity and autophosphorylation state. Further, in vitro, CKI-epsilon is able to interact with mammalian PERIOD proteins, while the mutant enzyme is deficient in its ability to phosphorylate PERIOD. Lowrey et al. have proposed that CKI-epsilon plays a major role in delaying the negative feedback signal within the transcription-translation-based autoregulatory loop that composes the core of the circadian mechanism. Therefore the CKI-epsilon enzyme is an ideal target for pharmaceutical compounds influencing circadian rhythms, jet-lag and sleep, in addition to other physiologic and metabolic processes under circadian regulation (Lowrey, P. L. et al. (2000) Science 288:483-491).

[0019] Homeodomain-interacting protein kinases (HIPKs) are serine/threonine kinases and novel members of the DYRK kinase subfamily (Hofmann, T. G. et al. (2000) Biochimie 82:1123-1127). HIPKs contain a conserved protein kinase domain separated from a domain that interacts with homeoproteins. HIPKs are nuclear kinases, and HIPK2 is highly expressed in neuronal tissue (Kim, Y. H. et al. (1998) J. Biol. Chem. 273:25875-25879; Wang, Y. et al (2001) Biochim. Biophys. Acta 1518:168-172). HIPKs act as corepressors for homeodomian transcription factors. This corepressor activity is seen in posttranslational modifications such as ubiquitination and phosphorylation, each of which are important in the regulation of cellular protein function (Kim, Y. H. et al. (1999) Proc. Natl. Acad. Sci. USA 96:12350-12355).

[0020] The human h-warts protein, a homolog of Drosophila warts tumor suppressor gene, maps to chromosome 6q24-25.1. It has a serine/threonine kinase domain and is localized to centrosomes in interphase cells. It is involved in mitosis and functions as a component of the mitotic apparatus (Nishiyama, Y. et al. (1999) FEBS Lett. 459:159-165).

[0021] Calcium-Calmodulin Dependent Protein Kinases

[0022] Calcium-calmodulin dependent (CaM) kinases are involved in regulation of smooth muscle contraction, glycogen breakdown (phosphorylase kinase), and neurotransmission (CaM kinase I and CaM kinase II). CaM dependent protein kinases are activated by calmodulin, an intracellular calcium receptor, in response to the concentration of free calcium in the cell. Many CaM kinases are also activated by phosphorylation. Some CaM kinases are also activated by autophosphorylation or by other regulatory kinases. CaM kinase I phosphorylates a variety of substrates including the neurotransmitter-related proteins synapsin I and II, the gene transcription regulator, CREB, and the cystic fibrosis conductance regulator protein, CFTR (Haribabu, B. et al. (1995) EMBO J. 14:3679-3686). CaM kinase II also phosphorylates synapsin at different sites and controls the synthesis of catecholamines in the brain through phosphorylation and activation of tyrosine hydroxylase. CaM kinase II controls the synthesis of catecholamines and seratonin, through phosphorylation/activation of tyrosine hydroxylase and typtophan hydroxylase, respectively (Fujisawa, H. (1990) BioEssays 12:27-29). The mRNA encoding a calmodulin-binding protein kinase-like protein was found to be enriched in mammalian forebrain. This protein is associated with vesicles in both axons and dendrites and accumulates largely postnatally. The amino acid sequence of this protein is similar to CaM-dependent STKs, and the protein binds calmodulin in the presence of calcium (Godbout, M. et al. (1994) J. Neurosci. 14:1-13). CaM kinase II phosphorylates the C terminal domain of dystrophin to inhibit its binding to alpha-syntropin (Madhavan, R. and Jarrett, H. W. (1999) Biochim. Biophys. Acta 1434:260-274). Dystrophin and dystrophin-associated proteins including syntrophins are expressed in skeletal, cardiac, and smooth muscles and in the peripheral and central nervous systems (Ueda, H. et al. (2000) Histol. Histopathol. 15:753-760).

[0023] Mitogen-Activated Protein Kinases

[0024] The mitogen-activated protein kinases (MAP), which mediate signal transduction from the cell surface to the nucleus via phosphorylation cascades, are another STK family that regulates intracellular signaling pathways. Several subgroups have been identified, and each manifests different substrate specificities and responds to distinct extracellular stimuli (Egan, S. E. and R. A. Weinberg (1993) Nature 365:781-783). There are three kinase modules comprising the MAP kinase cascade: MAPK (MAP), MAPK kinase (MAP2K, MAPKK, or MKK), and MKK kinase (MAP3K, MAPKKK, OR MEKK) (Wang, X. S. et al (1998) Biochem. Biophys. Res. Commun. 253:33-37). The extracellular-regulated kinase (ERK) pathway is activated by growth factors and mitogens, for example, epidermal growth factor (EGF), ultraviolet light, hyperosmolar medium, heat shock, or endotoxic lipopolysaccharide (LPS). The closely related though distinct parallel pathways, the c-Jun N-terminal kinase (JNK), or stress-activated kinase (SAPK) pathway, and the p38 kinase pathway are activated by stress stimuli and proinflammatory cytokines such as tumor necrosis factor (TNF) and interleukin-1 (IL-1). Altered MAP kinase expression is implicated in a variety of disease conditions including cancer, inflammation, immune disorders, and disorders affecting growth and development. MAP kinase signaling pathways are present in mammalian cells as well as in yeast.

[0025] Cyclin-Dependent Protein Kinases

[0026] The cyclin-dependent protein kinases (CDKs) are STKs that control the progression of cells through the cell cycle. The entry and exit of a cell from mitosis are regulated by the synthesis and destruction of a family of activating proteins called cyclins. Cyclins are small regulatory proteins that bind to and activate CDKs, which then phosphorylate and activate selected proteins involved in the mitotic process. CDKs are unique in that they require multiple inputs to become activated. In addition to cyclin binding, CDK activation requires the phosphorylation of a specific threonine residue and the dephosphorylation of a specific tyrosine residue on the CDK.

[0027] Another family of STKs associated with the cell cycle are the NIMA (never in mitosis)-related kinases (Neks). Both CDKs and Neks are involved in duplication, maturation, and separation of the microtubule organizing center, the centrosome, in animal cells (Fry, A. M. et al. (1998) EMBO J. 17:470-481).

[0028] Checkpoint and Cell Cycle Kinases

[0029] In the process of cell division, the order and timing of cell cycle transitions are under control of cell cycle checkpoints, which ensure that critical events such as DNA replication and chromosome segregation are carried out with precision. If DNA is damaged, e.g. by radiation, a checkpoint pathway is activated that arrests the cell cycle to provide time for repair. If the damage is extensive, apoptosis is induced. In the absence of such checkpoints, the damaged DNA is inherited by aberrant cells which may cause proliferative disorders such as cancer. Protein kinases play an important role in this process. For example, a specific kinase, checkpoint kinase 1 (Chk1), has been identified in yeast and mammals, and is activated by DNA damage in yeast. Activation of Chk1 leads to the arrest of the cell at the G2/M transition (Sanchez, Y. et al. (1997) Science 277:1497-1501). Specifically, Chk1 phosphorylates the cell division cycle phosphatase CDC25, inhibiting its normal function which is to dephosphorylate and activate the cyclin-dependent kinase Cdc2. Cdc2 activation controls the entry of cells into mitosis (Peng, C. -Y. et al. (1997) Science 277:1501-1505). Thus, activation of Chk1 prevents the damaged cell from entering mitosis. A deficiency in a checkpoint kinase, such as Chk1, may also contribute to cancer by failure to arrest cells with damaged DNA at other checkpoints such as G2/M.

[0030] Proliferation-Related Kinases

[0031] Proliferation-related kinase is a serum/cytokine inducible STK that is involved in regulation of the cell cycle and cell proliferation in human megakarocytic cells (Li, B. et al. (1996) J. Biol. Chem. 271:19402-19408). Proliferation-related kinase is related to the polo (derived from Drosophila polo gene) family of STKs implicated in cell division. Proliferation-related kinase is downregulated in lung tumor tissue and may be a proto-oncogene whose deregulated expression in normal tissue leads to oncogenic transformation.

[0032] 5-AMP-Activated Protein Kinase

[0033] A ligand-activated STK protein kinase is 5-AMP-activated protein kinase (AMPK) (Gao, G. et al. (1996) J. Biol Chem. 271:8675-8681). Mammalian AMPK is a regulator of fatty acid and sterol synthesis through phosphorylation of the enzymes acetyl-CoA carboxylase and hydroxymethylglutaryl-CoA reductase and mediates responses of these pathways to cellular stresses such as heat shock and depletion of glucose and ATP. AMPK is a heterotrimeric complex comprised of a catalytic alpha subunit and two non-catalytic beta and gamma subunits that are believed to regulate the activity of the alpha subunit. Three isoforms of the gamma subunit, 1, 2, and 3 have been identified (Cheung, P. C. et al. (2000) Biochem. J. 346:659-669). The sensitivity of AMPK to AMP depends on the particular gamma isoform present. Subunits of AMPK have a much wider distribution in non-lipogenic tissues such as brain, heart, spleen, and lung than expected. This distribution suggests that its role may extend beyond regulation of lipid metabolism alone.

[0034] Kinases in Apoptosis

[0035] Apoptosis is a highly regulated signaling pathway leading to cell death that plays a crucial role in tissue development and homeostasis. Deregulation of this process is associated with the pathogenesis of a number of diseases including autoimmune diseases, neurodegenerative disorders, and cancer. Various STKs play key roles in this process. ZIP kinase is an STK containing a C-terminal leucine zipper domain in addition to its N-terminal protein kinase domain. This C-terminal domain appears to mediate homodimerization and activation of the kinase as well as interactions with transcription factors such as activating transcription factor, ATF4, a member of the cyclic-AMP responsive element binding protein (ATF/CREB) family of transcriptional factors (Sanjo, H. et al. (1998) J. Biol. Chem. 273:29066-29071). DRAK1 and DRAK2 are STKs that share homology with the death-associated protein kinases (DAP kinases), known to function in interferon- induced apoptosis (Sanjo et al., supra). Like ZIP kinase, DAP kinases contain a C-terminal protein-protein interaction domain, in the form of ankyrin repeats, in addition to the N-terminal kinase domain. ZIP, DAP, and DRAK kinases induce morphological changes associated with apoptosis when transfected into NIH3T3 cells (Sanjo et al., supra). However, deletion of either the N-terminal kinase catalytic domain or the C-terminal domain of these proteins abolishes apoptosis activity, indicating that in addition to the kinase activity, activity in the C-terminal domain is also necessary for apoptosis, possibly as an interacting domain with a regulator or a specific substrate.

[0036] RICK is another STK recently identified as mediating a specific apoptotic pathway involving the death receptor, CD95 (Inohara, N. et al. (1998) J. Biol. Chem. 273:12296-12300). CD95 is a member of the tumor necrosis factor receptor superfamily and plays a critical role in the regulation and homeostasis of the immune system (Nagata, S. (1997) Cell 88:355-365). The CD95 receptor signaling pathway involves recruitment of various intracellular molecules to a receptor complex following ligand binding. This process includes recruitment of the cysteine protease caspase-8 which, in turn, activates a caspase cascade leading to cell death. RICK is composed of an N-terminal kinase catalytic domain and a C-terminal caspase-recruitment domain that interacts with caspase-like domains, indicating that RICK plays a role in the recruitment of caspase-8. This interpretation is supported by the fact that the expression of RICK in human 293T cells promotes activation of caspase-8 and potentiates the induction of apoptosis by various proteins involved in the CD95 apoptosis pathway (Inohara et al., supra).

[0037] Mitochondrial Protein Kinases

[0038] A novel class of eukaryotic kinases, related by sequence to prokaryotic histidine protein kinases, are the mitochondrial protein kinases (MPKs) which seem to have no sequence similarity with other eukaryotic protein kinases. These protein kinases are located exclusively in the mitochondrial matrix space and may have evolved from genes originally present in respiration-dependent bacteria which were endocytosed by primitive eukaryotic cells. MPKs are responsible for phosphorylation and inactivation of the branched-chain alpha-ketoacid dehydrogenase and pyruvate dehydrogenase complexes (Harris, R. A. et al. (1995) Adv. Enzyme Regul. 34:147-162). Five MPKs have been identified. Four members correspond to pyruvate dehydrogenase kinase isozymes, regulating the activity of the pyruvate dehydrogenase complex, which is an important regulatory enzyme at the interface between glycolysis and the citric acid cycle. The fifth member corresponds to a branched-chain alpha-ketoacid dehydrogenase kinase, important in the regulation of the pathway for the disposal of branched-chain amino acids. (Harris, R. A. et al. (1997) Adv. Enzyme Regul. 37:271-293). Both starvation and the diabetic state are known to result in a great increase in the activity of the pyruvate dehydrogenase kinase in the liver, heart and muscle of the rat. This increase contributes in both disease states to the phosphorylation and inactivation of the pyruvate dehydrogenase complex and conservation of pyruvate and lactate for gluconeogenesis (Harris (1995) supra).

[0039] Kinases with Non-Protein Substrates

[0040] Lipid and Inositol Kinases

[0041] Lipid kinases phosphorylate hydroxyl residues on lipid head groups. A family of kinases involved in phosphorylation of phosphatidylinositol (PI) has been described, each member phosphorylating a specific carbon on the inositol ring (Leevers, S. J. et al. (1999) Curr. Opin. Cell. Biol. 11:219-225). The phosphorylation of phosphatidylinositol is involved in activation of the protein kinase C signaling pathway. The inositol phospholipids (phosphoinositides) intracellular signaling pathway begins with binding of a signaling molecule to a G-protein linked receptor in the plasma membrane. This leads to the phosphorylation of phosphatidylinositol (PI) residues on the inner side of the plasma membrane by inositol kinases, thus converting PI residues to the biphosphate state (PIP₂). PIP₂ is then cleaved into inositol triphosphate (IP₃) and diacylglycerol. These two products act as mediators for separate signaling pathways. Cellular responses that are mediated by these pathways are glycogen breakdown in the liver in response to vasopressin, smooth muscle contraction in response to acetylcholine, and thrombin-induced platelet aggregation.

[0042] PI3-kinase (PI3K), which phosphorylates the D3 position of PI and its derivatives, has a central role in growth factor signal cascades involved in cell growth, differentiation, and metabolism. PI3K is a heterodimer consisting of an adapter subunit and a catalytic subunit. The adapter subunit acts as a scaffolding protein, interacting with specific tyrosine-phosphorylated proteins, lipid moieties, and other cytosolic factors. When the adapter subunit binds tyrosine phosphorylated targets, such as the insulin responsive substrate (IRS)-1, the catalytic subunit is activated and converts PI (4,5) bisphosphate (PIP₂) to PI (3,4,5) P₃ (PIP₃). PIP₃ then activates a number of other proteins, including PKA, protein kinase B (PKB), protein kinase C (PKC), glycogen synthase kinase (GSK)-3, and p70 ribosomal s6 kinase. PI3K also interacts directly with the cytoskeletal organizing proteins, Rac, rho, and cdc42 (Shepherd, P. R. et al. (1998) Biochem. J. 333:471-490). Animal models for diabetes, such as obese and fat mice, have altered PI3K adapter subunit levels. Specific mutations in the adapter subunit have also been found in an insulin-resistant Danish population, suggesting a role for PI3K in type-2 diabetes (Shepard, supra).

[0043] An example of lipid kinase phosphorylation activity is the phosphorylation of D-erythro-sphingosine to the sphingolipid metabolite, sphingosine-1-phosphate (SPP). SPP has emerged as a novel lipid second-messenger with both extracellular and intracellular actions (Kohama, T. et al. (1998) J. Biol. Chem. 273:23722-23728). Extracellularly, SPP is a ligand for the G-protein coupled receptor EDG-1 (endothelial-derived, G-protein coupled receptor). Intracellularly, SPP regulates cell growth, survival, motility, and cytoskeletal changes. SPP levels are regulated by sphingosine kinases that specifically phosphorylate D-erythro-sphingosine to SPP. The importance of sphingosine kinase in cell signaling is indicated by the fact that various stimuli, including platelet-derived growth factor (PDGF), nerve growth factor, and activation of protein kinase C, increase cellular levels of SPP by activation of sphingosine kinase, and the fact that competitive inhibitors of the enzyme selectively inhibit cell proliferation induced by PDGF (Kohama et al., supra).

[0044] Purine Nucleotide Kinases

[0045] The purine nucleotide kinases, adenylate kinase (ATP:AMP phosphotransferase, or AdK) and guanylate kinase (ATP:GMP phosphotransferase, or GuK) play a key role in nucleotide metabolism and are crucial to the synthesis and regulation of cellular levels of ATP and GTP, respectively. These two molecules are precursors in DNA and RNA synthesis in growing cells and provide the primary source of biochemical energy in cells (ATP), and signal transduction pathways (GTP). Inhibition of various steps in the synthesis of these two molecules has been the basis of many antiproliferative drugs for cancer and antiviral therapy (Pillwein, K. et al. (1990) Cancer Res. 50:1576-1579).

[0046] AdK is found in almost all cell types and is especially abundant in cells having high rates of ATP synthesis and utilization such as skeletal muscle. In these cells AdK is physically associated with mitochondria and myofibrils, the subcellular structures that are involved in energy production and utilization, respectively. Recent studies have demonstrated a major function for AdK in transferring high energy phosphoryls from metabolic processes generating ATP to cellular components consuming ATP (Zeleznikar, R. J. et al. (1995) J. Biol. Chem. 270:7311-7319). Thus AdK may have a pivotal role in maintaining energy production in cells, particularly those having a high rate of growth or metabolism such as cancer cells, and may provide a target for suppression of its activity in order to treat certain cancers. Alternatively, reduced AdK activity may be a source of various metabolic, muscle-energy disorders that can result in cardiac or respiratory failure and may be treatable by increasing AdK activity.

[0047] GuK, in addition to providing a key step in the synthesis of GTP for RNA and DNA synthesis, also fulfills an essential function in signal transduction pathways of cells through the regulation of GDP and GTP. Specifically, GTP binding to membrane associated G proteins mediates the activation of cell receptors, subsequent intracellular activation of adenyl cyclase, and production of the second messenger, cyclic AMP. GDP binding to G proteins inhibits these processes. GDP and GTP levels also control the activity of certain oncogenic proteins such as p21^ras known to be involved in control of cell proliferation and oncogenesis (Bos, J. L. (1989) Cancer Res. 49:4682-4689). High ratios of GTP:GDP caused by suppression of GuK cause activation of p21^ras and promote oncogenesis. Increasing GuK activity to increase levels of GDP and reduce the GTP:GDP ratio may provide a therapeutic strategy to reverse oncogenesis.

[0048] GuK is an important enzyme in the phosphorylation and activation of certain antiviral drugs useful in the treatment of herpes virus infections. These drugs include the guanine homologs acyclovir and buciclovir (Miller, W. H. and R. L. Miller (1980) J. Biol. Chem. 255:7204-7207; Stenberg, K. et al. (1986) J. Biol. Chem. 261:2134-2139). Increasing GuK activity in infected cells may provide a therapeutic strategy for augmenting the effectiveness of these drugs and possibly for reducing the necessary dosages of the drugs.

[0049] Pyrimidine Kinases

[0050] The pyrimidine kinases are deoxycytidine kinase and thymidine kinase 1 and 2. Deoxycytidine kinase is located in the nucleus, and thymidine kinase 1 and 2 are found in the cytosol (Johansson, M. et al. (1997) Proc. Natl. Acad. Sci. USA 94:11941-11945). Phosphorylation of deoxyribonucleosides by pyrimidine kinases provides an alternative pathway for de novo synthesis of DNA precursors. The role of pyrimidine kinases, like purine kinases, in phosphorylation is critical to the activation of several chemotherapeutically important nucleoside analogues (Arner E. S. and S. Eriksson (1995) Pharmacol. Ther. 67:155-186).

[0051] Phosphatatses

[0052] Protein phosphatases are generally characterized as either serine/threonine- or tyrosine-specific based on their preferred phospho-amino acid substrate. However, some phosphatases (PSPs, for dual specificity phosphatases) can act on phosphorylated tyrosine, serine, or threonine residues. The protein serine/threonine phosphatases (PSPs) are important regulators of many cAMP-mediated hormone responses in cells. Protein tyrosine phosphatases (PTPs) play a significant role in cell cycle and cell signaling processes. Another family of phosphatases is the acid phosphatase or histidine acid phosphatase (HAP) family whose members hydrolyze phosphate esters at acidic pH conditions.

[0053] PSPs are found in the cytosol, nucleus, and mitochondria and in association with cytoskeletal and membranous structures in most tissues, especially the brain. Some PSPs require divalent cations, such as Ca² or Mn², for activity. PSPs play important roles in glycogen metabolism, muscle contraction, protein synthesis, T cell function, neuronal activity, oocyte maturation, and hepatic metabolism (reviewed in Cohen, P. (1989) Annu. Rev. Biochem. 58:453-508). PSPs can be separated into two classes. The PPP class includes PP1, PP2A, PP2B/calcineurin, PP4, PP5, PP6, and PP7. Members of this class are composed of a homologous catalytic subunit bearing a very highly conserved signature sequence, coupled with one or more regulatory subunits (PROSITE PDOC00115). Further interactions with scaffold and anchoring molecules determine the intracellular localization of PSPs and substrate specificity. The PPM class consists of several closely related isoforms of PP2C and is evolutionarily unrelated to the PPP class.

[0054] PP1 dephosphorylates many of the proteins phosphorylated by cyclic AMP-dependent protein kinase (PKA) and is an important regulator of many cAMP-mediated hormone responses in cells. A number of isoforms have been identified, with the alpha and beta forms being produced by alternative splicing of the same gene. Both ubiquitous and tissue-specific targeting proteins for PP1 have been identified. In the brain, inhibition of PP1 activity by the dopamine and adenosine 3,5-monophosphate-regulated phosphoprotein of 32 kDa (DARPP-32) is necessary for normal dopamine response in neostriatal neurons (reviewed in Price, N. E. and M. C. Mumby (1999) Curr. Opin. Neurobiol. 9:336-342). PP1, along with PP2A, has been shown to limit motility in microvascular endothelial cells, suggesting a role for PSPs in the inhibition of angiogenesis (Gabel, S. et al. (1999) Otolaryngol. Head Neck Surg.121:463-468).

[0055] PP2A is the main serine/threonine phosphatase. The core PP2A enzyme consists of a single 36 kDa catalytic subunit (C) associated with a 65 kDa scaffold subunit (A), whose role is to recruit additional regulatory subunits (B). Three gene families encoding B subunits are known (PR55, PR61, and PR72), each of which contain multiple isoforms, and additional families may exist (Millward, T. A et al. (1999) Trends Biosci. 24:186-191). These B-type subunits are cell type- and tissue-specific and determine the substrate specificity, enzymatic activity, and subcellular localization of the holoenzyme. The PR55 family is highly conserved and bears a conserved motif (PROSITE PDOC00785). PR55 increases PP2A activity toward mitogen-activated protein kinase (MAPK) and MAPK kinase (MEK). PP2A dephosphorylates the MAPK active site, inhibiting the cell's entry into mitosis. Several proteins can compete with PR55 for PP2A core enzyme binding, including the CKII kinase catalytic subunit, polyomavirus middle and small T antigens, and SV40 small t antigen. Viruses may use this mechanism to commandeer PP2A and stimulate progression of the cell through the cell cycle (Pallas, D. C. et al. (1992) J. Virol. 66:886-893). Altered MAP kinase expression is also implicated in a variety of disease conditions including cancer, inflammation, immune disorders, and disorders affecting growth and development. PP2A, in fact, can dephosphorylate and modulate the activities of more than 30 protein kinases in vitro, and other evidence suggests that the same is true in vivo for such kinases as PKB, PKC, the calmodulin-dependent kinases, ERK family MAP kinases, cyclin-dependent kinases, and the IB kinases (reviewed in Millward et al., supra). PP2A is itself a substrate for CKI and CKII kinases, and can be stimulated by polycationic macromolecules. A PP2A-like phosphatase is necessary to maintain the G1 phase destruction of mammalian cyclins A and B (Bastians, H. et al. (1999) Mol. Biol. Cell 10:3927-3941). PP2A is a major activity in the brain and is implicated in regulating neurofilament stability and normal neural function, particularly the phosphorylation of the microtubule-associated protein tau. Hyperphosphorylation of tau has been proposed to lead to the neuronal degeneration seen in Alzheimner's disease (reviewed in Price and Mumby, supra).

[0056] PP2B, or calcineurin, is a Ca²-activated dimeric phosphatase and is particularly abundant in the brain. It consists of catalytic and regulatory subunits, and is activated by the binding of the calcium/calmodulin complex. Calcineurin is the target of the immunosuppressant drugs cyclosporine and FK506. Along with other cellular factors, these drugs interact with calcineurin and inhibit phosphatase activity. In T cells, this blocks the calcium dependent activation of the NF-AT family of transcription factors, leading to immunosuppression. This family is widely distributed, and it is likely that calcineurin regulates gene expression in other tissues as well. In neurons, calcineurin modulates functions which range from the inhibition of neurotransmitter release to desensitization of postsynaptic NMDA-receptor coupled calcium channels to long term memory (reviewed in Price and Mumby, supra).

[0057] Other members of the PPP class have recently been identified (Cohen, P. T. (1997) Trends Biochem. Sci. 22:245-251). One of them, PP5, contains regulatory domains with tetratricopeptide repeats. It can be activated by polyunsaturated fatty acids and anionic phospholipids in vitro and appears to be involved in a number of signaling pathways, including those controlled by atrial natriuretic peptide or steroid hormones (reviewed in Andreeva, A. V. and M. A. Kutuzov (1999) Cell Signal 11:555-562).

[0058] PP2C is a 42 kDa monomer with broad substrate specificity and is dependent on divalent cations (mainly Mn² or Mg²) for its activity. PP2C proteins share a conserved N-terminal region with an invariant DGH motif, which contains an aspartate residue involved in cation binding (PROSITE PDOC00792). Targeting proteins and mechanisms regulating PP2C activity have not been identified. PP2C has been shown to inhibit the stress-responsive p38 and Jun kinase (JNK) pathways (Takekawa, M. et al. (1998) EMBO J. 17:4744-4752).

[0059] In contrast to PSPs, tyrosine-specific phosphatases (PTPs) are generally monomeric proteins of very diverse size (from 20 kDa to greater than 100 kDa) and structure that function primarily in the transduction of signals across the plasma membrane. Us are categorized as either soluble phosphatases or transmembrane receptor proteins that contain a phosphatase domain. All PTPs share a conserved catalytic domain of about 300 amino acids which contains the active site. The active site consensus sequence includes a cysteine residue which executes a nucleophilic attack on the phosphate moiety during catalysis (Neel, B. G. and N. K. Tonks (1997) Curr. Opin. Cell Biol. 9:193-204). Receptor PTPs are made up of an N-terminal extracellular domain of variable length, a transmembrane region, and a cytoplasmic region that generally contains two copies of the catalytic domain. Although only the first copy seems to have enzymatic activity, the second copy apparently affects the substrate specificity of the first. The extracellular domains of some receptor PTPs contain fibronectin-like repeats, immunoglobulin-like domains, MAM domains (an extracellular motif likely to have an adhesive function), or carbonic anhydrase-like domains (PROSITE, PDOC 00323). This wide variety of structural motifs accounts for the diversity in size and specificity of PTPs.

[0060] PTPs play important roles in biological processes such as cell adhesion, lymphocyte activation, and cell proliferation. PTPs and are involved in cell-cell contacts, perhaps regulating cadherin/catenin function. A number of PTPs affect cell spreading, focal adhesions, and cell motility, most of them via the integrin/tyrosine kinase signaling pathway (reviewed in Neel and Tonks, supra). CD45 phosphatases regulate signal transduction and lymphocyte activation (Ledbetter, J. A. et al. (1988) Proc. Natl. Acad. Sci. USA 85:8628-8632). Soluble HTPs containing Src-homology-2 domains have been identified (SHPs), suggesting that these molecules might interact with receptor tyrosine kinases. SHP-1 regulates cytokine receptor signaling by controlling the Janus family PTKs in hematopoietic cells, as well as signaling by the T-cell receptor and c-Kit (reviewed in Neel and Tonks, supra). M-phase inducer phosphatase plays a key role in the induction of mitosis by dephosphorylating and activating the PTK CDC2, leading to cell division (Sadhu, K. et al. (1990) Proc. Natl. Acad. Sci. USA 87:5139-5143). In addition, the genes encoding at least eight PTPs have been mapped to chromosomal regions that are translocated or rearranged in various neoplastic conditions, including lymphoma, small cell lung carcinoma, leukemia, adenocarcinoma, and neuroblastoma (reviewed in Charbonneau, H. and N. K. Tonks (1992) Annu. Rev. Cell Biol. 8:463-493). The PTP enzyme active site comprises the consensus sequence of the MTM1 gene family. The MTM1 gene is responsible for X-linked recessive myotubular myopathy, a congenital muscle disorder that has been linked to Xq28 (Kioschis, P. et al., (1998) Genomics 54:256-266). Many PTKs are encoded by oncogenes, and it is well known that oncogenesis is often accompanied by increased tyrosine phosphorylation activity. It is therefore possible that PTPs may serve to prevent or reverse cell transformation and the growth of various cancers by controlling the levels of tyrosine phosphorylation in cells. This is supported by studies showing that overexpression of PTP can suppress transformation in cells and that specific inhibition of PTP can enhance cell transformation (Charbonneau and Tonks, supra).

[0061] Dual specificity phosphatases (DSPs) are structurally more similar to the PTPs than the PSPs. DSPs bear an extended PTP active site motif with an additional 7 amino acid residues. DSPs are primarily associated with cell proliferation and include the cell cycle regulators cdc25A, B, and C. The phosphatases DUSP1 and DUSP2 inactivate the MAPK family members ERK (extracellular signal-regulated kinase), JNK (c-Jun N-terminal kinase), and p38 on both tyrosine and threonine residues (PROSITE PDOC 00323, supra). In the activated state, these kinases have been implicated in neuronal differentiation, proliferation, oncogenic transformation, platelet aggregation, and apoptosis. Thus, DSPs are necessary for proper regulation of these processes (Muda, M. et al. (1996) J. Biol. Chem. 271:27205-27208). The tumor suppressor PTEN is a DSP that also shows lipid phosphatase activity. It seems to negatively regulate interactions with the extracellular matrix and maintains sensitivity to apoptosis. PTEN has been implicated in the prevention of angiogenesis (Giri, D. and M. Ittmann (1999) Hum. Pathol. 30:419-424) and abnormalities in its expression are associated with numerous cancers (reviewed in Tamura, M. et al. (1999) J. Natl. Cancer Inst. 91:1820-1828).

[0062] Histidine acid phosphatase (HAP; EXPASY EC 3.1.3.2), also known as acid phosphatase, hydrolyzes a wide spectrum of substrates including alkyl, aryl, and acyl orthophosphate monoesters and phosphorylated proteins at low pH. HAPs share two regions of conserved sequences, each centered around a histidine residue which is involved in catalytic activity. Members of the HAP family include lysosomal acid phosphatase (LAP) and prostatic acid phosphatase (PAP), both sensitive to inhibition by L-tartrate (PROSITE PDOC00538).

[0063] LAP, an orthophosphoric monoester of the endosomal/lysosomal compartment is a housekeeping gene whose enzymatic activity has been detected in all tissues examined (Geier, C. et al. (1989) Eur. J. Biochem. 183:611-616). LAP-deficient mice have progressive skeletal disorder and an increased disposition toward generalized seizures (Saftig, P. et al. (1997) J. Biol. Chem. 272:18628-18635). LAP-deficient patients were found to have the following clinical features: intermittent vomiting, hypotonia, lethargy, opisthotonos, terminal bleeding, seizures, and death in early infancy (Online Mendelian Inheritance in Man (OMIM) *200950).

[0064] PAP, a prostate epithelium-specific differentiation antigen produced by the prostate gland, has been used to diagnose and stage prostate cancer. In prostate carcinomas, the enzymatic activity of PAP was shown to be decreased compared with normal or benign prostate hypertrophy cells (Foti, A. G. et al. (1977) Cancer Res. 37:4120-4124). Two forms of PAP have been identified, secreted and intracellular. Mature secreted PAP is detected in the seminal fluid and is active as a glycosylated homodimer with a molecular weight of approximately 100-kilodalton. Intracellular PAP is found to exhibit endogenous phosphotyrosyl protein phosphatase activity and is involved in regulating prostate cell growth (Meng, T. C. and M. F. Lin (1998) J. Biol. Chem. 34:22096-22104).

[0065] LAP, an orthophosphoric monoester of the endosomal/lysosomal compartment is a housekeeping gene whose enzymatic activity has been detected in all tissues examined (Geier, C. et al. (1989) Eur. J. Biochem. 183:611-616). LAP-deficient mice have progressive skeletal disorder and an increased disposition toward generalized seizures (Saftig, P. et al. (1997) J. Biol. Chem. 272:18628-18635). LAP-deficient patients were found to have the following clinical features: intermittent vomiting, hypotonia, lethargy, opisthotonos, terminal bleeding, seizures, and death in early infancy (Online Mendelian Inheritance in Man (OMIM) *200950).

[0066] PAP, a prostate epithelium-specific differentiation antigen produced by the prostate gland, has been used to diagnose and stage prostate cancer. In prostate carcinomas, the enzymatic activity of PAP was shown to be decreased compared with normal or benign prostate hypertrophy cells (Foti, A. G. et al. (1977) Cancer Res. 37:4120-4124). Two forms of PAP have been identified, secreted and intracellular. Mature secreted PAP is detected in the seminal fluid and is active as a glycosylated homodimer with a molecular weight of approximately 100-kilodalton. Intracellular PAP is found to exhibit endogenous phosphotyrosyl protein phosphatase activity and is involved in regulating prostate cell growth (Meng, T. C. and M. F. Lin (1998) J. Biol. Chem. 34:22096-22104).

[0067] Synaptojanin, a polyphosphoinositide phosphatase, dephosphorylates phosphoinositides at positions 3, 4 and 5 of the inositol ring. Synaptojanin is a major presynaptic protein found at clathrin-coated endocytic intermediates in nerve terminals, and binds the clathrin coat-associated protein, EPS15. This binding is mediated by the C-terminal region of synaptojanin-170, which has 3 Asp-Pro-Phe amino acid repeats. Further, this 3 residue repeat had been found to be the binding site for the EH domains of EPS15 (Haffner, C. et al. (1997) FEBS Lett. 419:175-180). Additionally, synaptojanin may potentially regulate interactions of endocytic proteins with the plasma membrane, and be involved in synaptic vesicle recycling (Brodin, L. et al. (2000) Curr. Opin. Neurobiol. 10:312-320). Studies in mice with a targeted disruption in the synaptojanin 1 gene (Synj1) were shown to support coat formation of endocytic vesicles more effectively than was seen in wild-type mice, suggesting that Synj1 can act as a negative regulator of membrane-coat protein interactions. These findings provide genetic evidence for a crucial role of phosphoinositide metabolism in synaptic vesicle recycling (Cremona, O. et al. (1999) Cell 99:179-188).

[0068] Expression Profiling

[0069] Array technology can provide a simple way to explore the expression of a single polymorphic gene or the expression profile of a large number of related or unrelated genes. When the expression of a single gene is examined, arrays are employed to detect the expression of a specific gene or its variants. When an expression profile is examined, arrays provide a platform for identifying genes that are tissue specific, are affected by a substance being tested in a toxicology assay, are part of a signaling cascade, carry out housekeeping functions, or are specifically related to a particular genetic predisposition, condition, disease, or disorder.

[0070] The discovery of new kinases and phosphatases, and the polynucleotides encoding them, satisfies a need in the art by providing new compositions which are useful in the diagnosis, prevention, and treatment of cardiovascular diseases, immune system disorders, neurological disorders, disorders affecting growth and development, lipid disorders, cell proliferative disorders, and cancers, and in the assessment of the effects of exogenous compounds on the expression of nucleic acid and amino acid sequences of kinases and phosphatases.

[0071] The invention features purified polypeptides, kinases and phosphatases, referred to collectively as KPP and individually as KPP-1, KPP-2, KPP-3, KPP-4, KPP-5, KPP-6, KPP-7, KPP-8, KPP-9, KPP-10, KPP-11, KPP-12, KPP-13, KPP-14, and KPP-15. In one aspect, the invention provides an isolated polypeptide selected from the group consisting of a) a polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, b) a polypeptide comprising a naturally occurring amino acid sequence at least 99% identical to an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, c) a biologically active fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, and d) an immunogenic fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15. In one alternative, the invention provides an isolated polypeptide comprising the amino acid sequence of SEQ ID NO:1-15.

[0072] The invention further provides an isolated polynucleotide encoding a polypeptide selected from the group consisting of a) a polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, b) a polypeptide comprising a naturally occurring amino acid sequence at least 99% identical to an amninoacid sequence selected from the group consisting of SEQ ID NO:1-15, c) a biologically active fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, and d) an immunogenic fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15. In one alternative, the polynucleotide encodes a polypeptide selected from the group consisting of SEQ ID NO:1-15. In another alternative, the polynucleotide is selected from the group consisting of SEQ ID NO:16-30.

[0073] Additionally, the invention provides a recombinant polynucleotide comprising a promoter sequence operably linked to a polynucleotide encoding a polypeptide selected from the group consisting of a) a polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, b) a polypeptide comprising a naturally occurring amino acid sequence at least 99% identical to an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, c) a biologically active fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, and d) an immunogenic fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15. In one alternative, the invention provides a cell transformed with the recombinant polynucleotide. In another alternative, the invention provides a transgenic organism comprising the recombinant polynucleotide.

[0074] The invention also provides a method for producing a polypeptide selected from the group consisting of a) a polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, b) a polypeptide comprising a naturally occurring amino acid sequence at least 99% identical to an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, c) a biologically active fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, and d) an immunogenic fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15. The method comprises a) culturing a cell under conditions suitable for expression of the polypeptide, wherein said cell is transformed with a recombinant polynucleotide comprising a promoter sequence operably linked to a polynucleotide encoding the polypeptide, and b) recovering the polypeptide so expressed.

[0075] Additionally, the invention provides an isolated antibody which specifically binds to a polypeptide selected from the group consisting of a) a polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, b) a polypeptide comprising a naturally occurring amino acid sequence at least 99% identical to an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, c) a biologically active fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID-NO:1-15, and d) an immunogenic fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15.

[0076] The invention further provides an isolated polynucleotide selected from the group consisting of a) a polynucleotide comprising a polynucleotide sequence selected from the group consisting of SEQ ID NO:16-30, b) a polynucleotide comprising a naturally occurring polynucleotide sequence at least 90% identical to a polynucleotide sequence selected from the group consisting of SEQ ID NO:16-30, c) a polynucleotide complementary to the polynucleotide of a), d) a polynucleotide complementary to the polynucleotide of b), and e) an RNA equivalent of a)-d). In one alternative, the polynucleotide comprises at least 60 contiguous nucleotides.

[0077] Additionally, the invention provides a method for detecting a target polynucleotide in a sample, said target polynucleotide having a sequence of a polynucleotide selected from the group consisting of a) a polynucleotide comprising a polynucleotide sequence selected from the group consisting of SEQ ID NO:16-30, b) a polynucleotide comprising a naturally occurring polynucleotide sequence at least 90% identical to a polynucleotide sequence selected from the group consisting of SEQ ID NO:16-30, c) a polynucleotide complementary to the polynucleotide of a), d) a polynucleotide complementary to the polynucleotide of b), and e) an RNA equivalent of a)-d). The method comprises a) hybridizing the sample with a probe comprising at least 20 contiguous nucleotides comprising a sequence complementary to said target polynucleotide in the sample, and which probe specifically hybridizes to said target polynucleotide, under conditions whereby a hybridization complex is formed between said probe and said target polynucleotide or fragments thereof, and b) detecting the presence or absence of said hybridization complex, and optionally, if present, the amount thereof. In one alternative, the probe comprises at least 60 contiguous nucleotides.

[0078] The invention further provides a method for detecting a target polynucleotide in a sample, said target polynucleotide having a sequence of a polynucleotide selected from the group consisting of a) a polynucleotide comprising a polynucleotide sequence selected from the group consisting of SEQ ID NO:16-30, b) a polynucleotide comprising a naturally occurring polynucleotide sequence at least 90% identical to a polynucleotide sequence selected from the group consisting of SEQ ID NO:16-30, c) a polynucleotide complementary to the polynucleotide of a), d) a polynucleotide complementary to the polynucleotide of b), and e) an RNA equivalent of a)-d). The method comprises a) amplifying said target polynucleotide or fragment thereof using polymerase chain reaction amplification, and b) detecting the presence or absence of said amplified target polynucleotide or fragment thereof, and, optionally, if present, the amount thereof.

[0079] The invention further provides a composition comprising an effective amount of a polypeptide selected from the group consisting of a) a polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, b) a polypeptide comprising a naturally occurring amino acid sequence at least 99% identical to an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, c) a biologically active fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, and d) an immunogenic fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, and a pharmaceutically acceptable excipient. In one embodiment, the composition comprises an amino acid sequence selected from the group consisting of SEQ ID NO:1-15. The invention additionally provides a method of treating a disease or condition associated with decreased expression of functional KPP, comprising administering to a patient in need of such treatment the composition.

[0080] The invention also provides a method for screening a compound for effectiveness as an agonist of a polypeptide selected from the group consisting of a) a polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, b) a polypeptide comprising a naturally occurring amino acid sequence at least 99% identical to an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, c) a biologically active fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, and d) an immunogenic fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15. The method comprises a) exposing a sample comprising the polypeptide to a compound, and b) detecting agonist activity in the sample. In one alternative, the invention provides a composition comprising an agonist compound identified by the method and a pharmaceutically acceptable excipient. In another alternative, the invention provides a method of treating a disease or condition associated with decreased expression of functional KPP, comprising administering to a patient in need of such treatment the composition.

[0081] Additionally, the invention provides a method for screening a compound for effectiveness as an antagonist of a polypeptide selected from the group consisting of a) a polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, b) a polypeptide comprising a naturally occurring amino acid sequence at least 99% identical to an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, c) a biologically active fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, and d) an immunogenic fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15. The method comprises a) exposing a sample comprising the polypeptide to a compound, and b) detecting antagonist activity in the sample. In one alternative, the invention provides a composition comprising an antagonist compound identified by the method and a pharmaceutically acceptable excipient. In another alternative, the invention provides a method of treating a disease or condition associated with overexpression of functional KPP, comprising administering to a patient in need of such treatment the composition.

[0082] The invention further provides a method of screening for a compound that specifically binds to a polypeptide selected from the group consisting of a) a polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, b) a polypeptide comprising a naturally occurring amino acid sequence at least 99% identical to an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, c) a biologically active fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, and d) an immunogenic fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15. The method comprises a) combining the polypeptide with at least one test compound under suitable conditions, and b) detecting binding of the polypeptide to the test compound, thereby identifying a compound that specifically binds to the polypeptide.

[0083] The invention further provides a method of screening for a compound that modulates the activity of a polypeptide selected from the group consisting of a) a polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, b) a polypeptide comprising a naturally occurring amino acid sequence at least 99% identical to an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, c) a biologically active fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15, and d) an immunogenic fragment of a polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:1-15. The method comprises a) combining the polypeptide with at least one test compound under conditions permissive for the activity of the polypeptide, b) assessing the activity of the polypeptide in the presence of the test compound, and c) comparing the activity of the polypeptide in the presence of the test compound with the activity of the polypeptide in the absence of the test compound, wherein a change in the activity of the polypeptide in the presence of the test compound is indicative of a compound that modulates the activity of the polypeptide.

[0084] The invention further provides a method for screening a compound for effectiveness in altering expression of a target polynucleotide, wherein said target polynucleotide comprises a polynucleotide sequence selected from the group consisting of SEQ ID NO:16-30, the method comprising a) exposing a sample comprising the target polynucleotide to a compound, b) detecting altered expression of the target polynucleotide, and c) comparing the expression of the target polynucleotide in the presence of varying amounts of the compound and in the absence of the compound.

[0085] The invention further provides a method for assessing toxicity of a test compound, said method comprising a) treating a biological sample containing nucleic acids with the test compound; b) hybridizing the nucleic acids of the treated biological sample with a probe comprising at least 20 contiguous nucleotides of a polynucleotide selected from the group consisting of i) a polynucleotide comprising a polynucleotide sequence selected from the group consisting of SEQ ID NO:16-30, ii) a polynucleotide comprising a naturally occurring polynucleotide sequence at least 90% identical to a polynucleotide sequence selected from the group consisting of SEQ ID NO:16-30, iii) a polynucleotide having a sequence complementary to i), iv) a polynucleotide complementary to the polynucleotide of ii), and v) an RNA equivalent of i)-iv). Hybridization occurs under conditions whereby a specific hybridization complex is formed between said probe and a target polynucleotide in the biological sample, said target polynucleotide selected from the group consisting of i) a polynucleotide comprising a polynucleotide sequence selected from the group consisting of SEQ ID NO:16-30, ii) a polynucleotide comprising a naturally occurring polynucleotide sequence at least 90% identical to a polynucleotide sequence selected from the group consisting of SEQ ID NO:16-30, iii) a polynucleotide complementary to the polynucleotide of i), iv) a polynucleotide complementary to the polynucleotide of ii), and v) an RNA equivalent of i)-iv). Alternatively, the target polynucleotide comprises a fragment of a polynucleotide sequence selected from the group consisting of i)-v) above; c) quantifying the amount of hybridization complex; and d) comparing the amount of hybridization complex in the treated biological sample with the amount of hybridization complex in an untreated biological sample, wherein a difference in the amount of hybridization complex in the treated biological sample is indicative of toxicity of the test compound.

[0086] Table 1 summarizes the nomenclature for the fall length polynucleotide and polypeptide sequences of the present invention.

[0087] Table 2 shows the GenBank identification number and annotation of the nearest GenBank homolog for polypeptides of the invention. The probability scores for the matches between each polypeptide and its homolog(s) are also shown.

[0088] Table 3 shows structural features of polypeptide sequences of the invention, including predicted motifs and domains, along with the methods, algorithms, and searchable databases used for analysis of the polypeptides.

[0089] Table 4 lists the cDNA and/or genomic DNA fragments which were used to assemble polynucleotide sequences of the invention, along with selected fragments of the polynucleotide sequences.

[0090] Table 5 shows the representative cDNA library for polynucleotides of the invention.

[0091] Table 6 provides an appendix which describes the tissues and vectors used for construction of the cDNA libraries shown in Table 5.

[0092] Table 7 shows the tools, programs, and algorithms used to analyze the polynucleotides and polypeptides of the invention, along with applicable descriptions, references, and threshold parameters.

[0093] Before the present proteins, nucleotide sequences, and methods are described, it is understood that this invention is not limited to the particular machines, materials and methods described, as these may vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention which will be limited only by the appended claims.

[0094] It must be noted that as used herein and in the appended claims, the singular forms a, an, and the include plural reference unless the context clearly dictates otherwise. Thus, for example, a reference to a host cell includes a plurality of such host cells, and a reference to an antibody is a reference to one or more antibodies and equivalents thereof known to those skilled in the art, and so forth.

[0095] Unless defined otherwise, all technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the art to which this invention belongs. Although any machines, materials, and methods similar or equivalent to those described herein can be used to practice or test the present invention, the preferred machines, materials and methods are now described. All publications mentioned herein are cited for the purpose of describing and disclosing the cell lines, protocols, reagents and vectors which are reported in the publications and which might be used in connection with the invention. Nothing herein is to be construed as an admission that the invention is not entitled to antedate such disclosure by virtue of prior invention.

[0096] Definitions

[0097] KPP refers to the amino acid sequences of substantially purified KPP obtained from any species, particularly a mammalian species, including bovine, ovine, porcine, murine, equine, and human, and from any source, whether natural, synthetic, semi-synthetic, or recombinant.

[0098] The term agonist refers to a molecule which intensifies or nimics the biological activity of KPP. Agonists may include proteins, nucleic acids, carbohydrates, small molecules, or any other compound or composition which modulates the activity of KPP either by directly interacting with KPP or by acting on components of the biological pathway in which KPP participates.

[0099] An allelic variant is an alternative form of the gene encoding KPP. Allelic variants may result from at least one mutation in the nucleic acid sequence and may result in altered mRNAs or in polypeptides whose structure or function may or may not be altered. A gene may have none, one, or many allelic variants of its naturally occurring form. Common mutational changes which give rise to allelic variants are generally ascribed to natural deletions, additions, or substitutions of nucleotides. Each of these types of changes may occur alone, or in combination with the others, one or more times in a given sequence.

[0100] Altered nucleic acid sequences encoding KPP include those sequences with deletions, insertions, or substitutions of different nucleotides, resulting in a polypeptide the same as KPP or a polypeptide with at least one functional characteristic of KPP. Included within this definition are polymorphisms which may or may not be readily detectable using a particular oligonucleotide probe of the polynucleotide encoding KPP, and improper or unexpected hybridization to allelic variants, with a locus other than the normal chromosomal locus for the polynucleotide sequence encoding KPP. The encoded protein may also be altered, and may contain deletions, insertions, or substitutions of amino acid residues which produce a silent change and result in a functionally equivalent KPP. Deliberate amino acid substitutions may be made on the basis of similarity in polarity, charge, solubility, hydrophobicity, hydrophilicity, and/or the amphipathic nature of the residues, as long as the biological or immunological activity of KPP is retained. For example, negatively charged amino acids may include aspartic acid and glutamic acid, and positively charged amino acids may include lysine and arginine. Amino acids with uncharged polar side chains having similar hydrophilicity values may include: asparagine and glutamine; and serine and threonine. Amino acids with uncharged side chains having similar hydrophilicity values may include: leucine, isoleucine, and valine; glycine and alanine; and phenylalanine and tyrosine.

[0101] The terms amino acid and amino acid sequence refer to an oligopeptide, peptide, polypeptide, or protein sequence, or a fragment of any of these, and to naturally occurring or synthetic molecules. Where amino acid sequence is recited to refer to a sequence of a naturally occurring protein molecule, amino acid sequence and like terms are not meant to limit the amino acid sequence to the complete native amino acid sequence associated with the recited protein molecule.

[0102] Amplification relates to the production of additional copies of a nucleic acid sequence. Amplification is generally carried out using polymerase chain reaction (PCR) technologies well known in the art.

[0103] The term antagonist refers to a molecule which inhibits or attenuates the biological activity of KPP. Antagonists may include proteins such as antibodies, nucleic acids, carbohydrates, small molecules, or any other compound or composition which modulates the activity of KPP either by directly interacting with KPP or by acting on components of the biological pathway in which KPP participates.

[0104] The term antibody refers to intact immunoglobulin molecules as well as to fragments thereof, such as Fab, F(ab)₂, and Fv fragments, which are capable of binding an epitopic determinant. Antibodies that bind KPP polypeptides can be prepared using intact polypeptides or using fragments containing small peptides of interest as the immunizing antigen. The polypeptide or oligopeptide used to immunize an animal (e.g., a mouse, a rat, or a rabbit) can be derived from the translation of RNA, or synthesized chemically, and can be conjugated to a carrier protein if desired. Commonly used carriers that are chemically coupled to peptides include bovine serum albumin, thyroglobulin, and keyhole limpet hemocyanin (KLH). The coupled peptide is then used to immunize the animal.

[0105] The term antigenic determinant refers to that region of a molecule (i.e., an epitope) that makes contact with a particular antibody. When a protein or a fragment of a protein is used to immunize a host animal, numerous regions of the protein may induce the production of antibodies which bind specifically to antigenic determinants (particular regions or three-dimensional structures on the protein). An antigenic determinant may compete with the intact antigen (i.e., the immunogen used to elicit the immune response) for binding to an antibody.

[0106] The term aptamer refers to a nucleic acid or oligonucleotide molecule that binds to a specific molecular target. Aptamers are derived from an in vitro evolutionary process (e.g., SELEX (Systematic Evolution of Ligands by EXponential Enrichment), described in U.S. Pat. No. 5,270,163), which selects for target-specific aptamer sequences from large combinatorial libraries. Aptamer compositions may be double-stranded or single-stranded, and may include deoxyribonucleotides, ribonucleotides, nucleotide derivatives, or other nucleotide-like molecules. The nucleotide components of an aptamer may have modified sugar groups (e.g., the 2-OH group of a ribonucleotide may be replaced by 2-F or 2-NH₂), which may improve a desired property, e.g., resistance to nucleases or longer lifetime in blood. Aptamers may be conjugated to other molecules, e.g., a high molecular weight carrier to slow clearance of the aptamer from the circulatory system. Aptamers may be specifically cross-linked to their cognate ligands, e.g., by photo-activation of a cross-linker. (See, e.g., Brody, E. N. and L. Gold (2000) J. Biotechnol. 74:5-13.)

[0107] The term intramer refers to an aptamer which is expressed in vivo. For example, a vaccinia virus-based RNA expression system has been used to express specific RNA aptamers at high levels in the cytoplasm of leukocytes (Blind, M. et al. (1999) Proc. Natl Acad. Sci. USA 96:3606-3610).

[0108] The term spiegelmer refers to an aptamer which includes L-DNA, L-RNA, or other left-handed nucleotide derivatives or nucleotide-like molecules. Aptamers containing left-handed nucleotides are resistant to degradation by naturally occurring enzymes, which normally act on substrates containing right-handed nucleotides.

[0109] The term antisense refers to any composition capable of base-pairing with the sense (coding) strand of a specific nucleic acid sequence. Antisense compositions may include DNA; RNA; peptide nucleic acid (PNA); oligonucleotides having modified backbone linkages such as phosphorothioates, methylphosphonates, or benzylphosphonates; oligonucleotides having modified sugar groups such as 2-methoxyethyl sugars or 2-methoxyethoxy sugars; or oligonucleotides having modified bases such as 5-methyl cytosine, 2-deoxyuracil, or 7-deaza-2-deoxyguanosine. Antisense molecules may be produced by any method including chemical synthesis or transcription. Once introduced into a cell, the complementary antisense molecule base-pairs with a naturally occurring nucleic acid sequence produced by the cell to form duplexes which block either transcription or translation. The designation negative or minus can refer to the antisense strand, and the designation positive or plus can refer to the sense strand of a reference DNA molecule.

[0110] The term biologically active refers to a protein having structural, regulatory, or biochemical functions of a naturally occurring molecule. Likewise, immunologically active or immunogenic refers to the capability of the natural, recombinant, or synthetic KPP, or of any oligopeptide thereof, to induce a specific immune response in appropriate animals or cells and to bind with specific antibodies.

[0111] Complementary describes the relationship between two single-stranded nucleic acid sequences that anneal by basepairing. For example, 5-AGT-3 pairs with its complement, 3-TCA-5.

[0112] A composition comprising a given polynucleotide sequence and a composition comprising a given amino acid sequence refer broadly to any composition containing the given polynucleotide or amino acid sequence. The composition may comprise a dry formulation or an aqueous solution. Compositions comprising polynucleotide sequences encoding KPP or fragments of KPP may be employed as hybridization probes. The probes may be stored in freeze-dried form and may be associated with a stabilizing agent such as a carbohydrate. In hybridizations, the probe may be deployed in an aqueous solution containing salts (e.g., NaCl), detergents (e.g., sodium dodecyl sulfate; SDS), and other components (e.g., Denhardt's solution, dry milk, salmon sperm DNA, etc.).

[0113] Consensus sequence refers to a nucleic acid sequence which has been subjected to repeated DNA sequence analysis to resolve uncalled bases, extended using the XL-PCR kit (Applied Biosystems, Foster City Calif.) in the 5 and/or the 3 direction, and resequenced, or which has been assembled from one or more overlapping cDNA, EST, or genomic DNA fragments using a computer program for fragment assembly, such as the GELVIEW fragment assembly system (GCG, Madison Wis.) or Phrap (University of Washington, Seattle Wash.). Some sequences have been both extended and assembled to produce the consensus sequence.

[0114] Conservative amino acid substitutions are those substitutions that are predicted to least interfere with the properties of the original protein, i.e., the structure and especially the function of the protein is conserved and not significantly changed by such substitutions. The table below shows amino acids which may be substituted for an original amino acid in a protein and which are regarded as conservative amino acid substitutions.

	Original Residue	Conservative Substitution
	Ala	Gly, Ser
	Arg	His, Lys
	Asn	Asp, Gln, His
	Asp	Asn, Glu
	Cys	Ala, Ser
	Gln	Asn, Glu, His
	Glu	Asp, Gln, His
	Gly	Ala
	His	Asn, Arg, Gln, Glu
	Ile	Leu, Val
	Leu	Ile, Val
	Lys	Arg, Gln, Glu
	Met	Leu, Ile
	Phe	His, Met, Leu, Trp, Tyr
	Ser	Cys,Thr
	Thr	Ser, Val
	Trp	Phe, Tyr
	Tyr	His, Phe, Trp
	Val	Ile, Leu, Thr

[0115] Conservative amino acid substitutions generally maintain (a) the structure of the polypeptide backbone in the area of the substitution, for example, as a beta sheet or alpha helical conformation, (b) the charge or hydrophobicity of the molecule at the site of the substitution, and/or (c) the bulk of the side chain.

[0116] A deletion refers to a change in the amino acid or nucleotide sequence that results in the absence of one or more amino acid residues or nucleotides.

[0117] The term derivative refers to a chemically modified polynucleotide or polypeptide. Chemical modifications of a polynucleotide can include, for example, replacement of hydrogen by an alky, acyl, hydroxyl, or amino group. A derivative polynucleotide encodes a polypeptide which retains at least one biological or immunological function of the natural molecule. A derivative polypeptide is one modified by glycosylation, pegylation, or any similar process that retains at least one biological or immunological function of the polypeptide from which it was derived.

[0118] A detectable label refers to a reporter molecule or enzyme that is capable of generating a measurable signal and is covalently or noncovalently joined to a polynucleotide or polypeptide.

[0119] Differential expression refers to increased or upregulated; or decreased, downregulated, or absent gene or protein expression, determined by comparing at least two different samples. Such comparisons maybe carried out between, for example, a treated and an untreated sample, or a diseased and a normal sample.

[0120] Exon shuffling refers to the recombination of different coding regions (exons). Since an exon may represent a structural or functional domain of the encoded protein, new proteins maybe assembled through the novel reassortment of stable substructures, thus allowing acceleration of the evolution of new protein functions.

[0121] A fragment is a unique portion of KPP or the polynucleotide encoding KPP which is identical in sequence to but shorter in length than the parent sequence. A fragment may comprise up to the entire length of the defined sequence, minus one nucleotide/amino acid residue. For example, a fragment may comprise from 5 to 1000 contiguous nucleotides or amino acid residues. A fragment used as a probe, primer, antigen, therapeutic molecule, or for other purposes, may be at least 5, 10, 15, 16, 20, 25, 30, 40, 50, 60, 75, 100, 150, 250 or at least 500 contiguous nucleotides or amino acid residues in length. Fragments may be preferentially selected from certain regions of a molecule. For example, a polypeptide fragment may comprise a certain length of contiguous amino acids selected from the first 250 or 500 amino acids (or first 25% or 50%) of a polypeptide as shown in a certain defined sequence. Clearly these lengths are exemplary, and any length that is supported by the specification, including the Sequence Listing, tables, and figures, maybe encompassed by the present embodiments.

[0122] A fragment of SEQ ID NO:16-30 comprises a region of unique polynucleotide sequence that specifically identifies SEQ ID NO:16-30, for example, as distinct from any other sequence in the genome from which the fragment was obtained. A fragment of SEQ ID NO:16-30 is useful, for example, in hybridization and amplification technologies and in analogous methods that distinguish SEQ ID NO:16-30 from related polynucleotide sequences. The precise length of a fragment of SEQ ID NO:16-30 and the region of SEQ ID NO:16-30 to which the fragment corresponds are routinely determinable by one of ordinary skill in the art based on the intended purpose for the fragment.

[0123] A fragment of SEQ ID NO:1-15 is encoded by a fragment of SEQ ID NO:16-30. A fragment of SEQ ID NO:1-15 comprises a region of unique amino acid sequence that specifically identifies SEQ ID NO:1-15. For example, a fragment of SEQ ID NO:1-15 is useful as an immunogenic peptide for the development of antibodies that specifically recognize SEQ ID NO:1-15. The precise length of a fragment of SEQ ID NO:1-15 and the region of SEQ ID NO:1-15 to which the fragment corresponds are routinely determinable by one of ordinary skill in the art based on the intended purpose for the fragment.

[0124] A full length polynucleotide sequence is one containing at least a translation initiation codon (e.g., methionine) followed by an open reading frame and a translation termination codon. A full length polynucleotide sequence encodes a full length polypeptide sequence.

[0125] Homology refers to sequence similarity or, interchangeably, sequence identity, between two or more polynucleotide sequences or two or more polypeptide sequences.

[0126] The terms percent identity and % identity, as applied to polynucleotide sequences, refer to the percentage of residue matches between at least two polynucleotide sequences aligned using a standardized algorithm. Such an algorithm may insert, in a standardized and reproducible way, gaps in the sequences being compared in order to optimize alignment between two sequences, and therefore achieve a more meaningful comparison of the two sequences.

[0127] Percent identity between polynucleotide sequences may be determined using the default parameters of the CLUSTAL V algorithm as incorporated into the MEGALIGN version 3.12e sequence alignment program. This program is part of the LASERGENE software package, a suite of molecular biological analysis programs (DNASTAR, Madison Wis.). CLUSTAL V is described in Higgins, D. G. and P. M. Sharp (1989) CABIOS 5:151-153 and in Higgins, D. G. et al. (1992) CABIOS 8:189-191. For pairwise alignments of polynucleotide sequences, the default parameters are set as follows: Ktuple2, gap penalty5, window4, and diagonals saved4. The weighted residue weight table is selected as the default. Percent identity is reported by CLUSTAL V as the percent similarity between aligned polynucleotide sequences.

[0128] Alternatively, a suite of commonly used and freely available sequence comparison algorithms is provided by the National Center for Biotechnology Information (NCBI) Basic Local Alignment Search Tool (BLAST) (Altschul, S. F. et al. (1990) J. Mol. Biol. 215:403-410), which is available from several sources, including the NCBI, Bethesda, Md., and on the Internet at http://www.ncbi.nlm.nih.gov/BLAST/. The BLAST software suite includes various sequence analysis programs including blastn, that is used to align a known polynucleotide sequence with other polynucleotide sequences from a variety of databases. Also available is a tool called BLAST 2 Sequences that is used for direct-pairwise comparison of two nucleotide sequences. BLAST 2 Sequences can be accessed and used interactively at http://www.ncbi.nlm.nih.gov/gorf/b12.html. The BLAST 2 Sequences tool can be used for both blastn and blastp (discussed below). BLAST programs are commonly used with gap and other parameters set to default settings. For example, to compare two nucleotide sequences, one may use blastn with the BLAST 2 Sequences tool Version 2.0.12 (Apr. 21, 2000) set at default parameters. Such default parameters may be, for example:

[0129] Matrix: BLOSUM62

[0130] Reward for match: 1

[0131] Penalty for mismatch: 2

[0132] Open Gap: 5 and Extension Gap: 2 penalties

[0133] Gapdrop-off: 50

[0134] Expect: 10

[0135] Word Size: 11

[0136] Filter: on

[0137] Percent identity may be measured over the length of an entire defined sequence, for example, as defined by a particular SEQ ID number, or may be measured over a shorter length, for example, over the length of a fragment taken from a larger, defined sequence, for instance, a fragment of at least 20, at least 30, at least 40, at least 50, at least 70, at least 100, or at least 200 contiguous nucleotides. Such lengths are exemplary only, and it is understood that any fragment length supported by the sequences shown herein, in the tables, figures, or Sequence Listing, maybe used to describe a length over which percentage identity may be measured.

[0138] Nucleic acid sequences that do not show a high degree of identity may nevertheless encode similar amino acid sequences due to the degeneracy of the genetic code. It is understood that changes in a nucleic acid sequence can be made using this degeneracy to produce multiple nucleic acid sequences that all encode substantially the same protein.

[0139] The phrases percent identity and % identity, as applied to polypeptide sequences, refer to the percentage of residue matches between at least two polypeptide sequences aligned using a standardized algorithm. Methods of polypeptide sequence alignment are well-known. Some alignment methods take into account conservative amino acid substitutions. Such conservative substitutions, explained in more detail above, generally preserve the charge and hydrophobicity at the site of substitution, thus preserving the structure (and therefore function) of the polypeptide.

[0140] Percent identity between polypeptide sequences may be determined using the default parameters of the CLUSTAL V algorithm as incorporated into the MEGALIGN version 3.12e sequence alignment program (described and referenced above). For pairwise alignments of polypeptide sequences using CLUSTAL V, the default parameters are set as follows: Ktuple1, gap penalty3, window5, and diagonals saved5. The PAM250 matrix is selected as the default residue weight table. As with polynucleotide alignments, the percent identity is reported by CLUSTAL V as the percent similarity between aligned polypeptide sequence pairs.

[0141] Alternatively the NCBI BLAST software suite may be used. For example, for a pairwise comparison of two polypeptide sequences, one may use the BLAST 2 Sequences tool Version 2.0.12 (Apr. 21, 2000) with blastp set at default parameters. Such default parameters may be, for example:

[0142] Matrix: BLOSUM62

[0143] Open Gap: 11 and Extension Gap: 1 penalties

[0144] Gapdrop-off: 50

[0145] Expect: 10

[0146] Word Size: 3

[0147] Filter: on

[0148] Percent identity may be measured over the length of an entire defined polypeptide sequence, for example, as defined by a particular SEQ ID number, or may be measured over a shorter length, for example, over the length of a fragment taken from a larger, defined polypeptide sequence, for instance, a fragment of at least 15, at least 20, at least 30, at least 40, at least 50, at least 70 or at least 150 contiguous residues. Such lengths are exemplary only, and it is understood that any fragment length supported by the sequences shown herein, in the tables, figures or Sequence Listing, may be used to describe a length over which percentage identity may be measured.

[0149] Human artificial chromosomes (HACs) are linear microchromosomes which may contain DNA sequences of about 6 kb to 10 Mb in size and which contain all of the elements required for chromosome replication, segregation and maintenance.

[0150] The term humanized antibody refers to an antibody molecule in which the amino acid sequence in the non-antigen binding regions has been altered so that the antibody more closely resembles a human antibody, and still retains its original binding ability.

[0151] Hybridization refers to the process by which a polynucleotide strand anneals with a complementary strand through base pairing under defined hybridization conditions. Specific hybridization is an indication that two nucleic acid sequences share a high degree of complementarity. Specific hybridization complexes form under permissive annealing conditions and remain hybridized after the washing step(s). The washing step(s) is particularly important in determining the, stringency of the hybridization process, with more stringent conditions allowing less non-specific binding, i.e., binding between pairs of nucleic acid strands that are not perfectly matched. Permissive conditions for annealing of nucleic acid sequences are routinely determinable by one of ordinary skill in, the art and may be consistent among hybridization experiments, whereas wash conditions may be varied among experiments to achieve the desired stringency, and therefore hybridization specificity. Permissive annealing conditions occur, for example, at 68 C. in the presence of about 6SSC, about 1% (w/v) SDS, and about 100 g/ml sheared, denatured salmon sperm DNA.

[0152] Generally, stringency of hybridization is expressed, in part, with reference to the temperature under which the wash step is carried out. Such wash temperatures are typically selected to be about 5 C. to 20 C. lower than the thermal melting point (T_m) for the specific sequence at a defined ionic strength and pH. The T_m is the temperature (under defined ionic strength and pH) at which 50% of the target sequence hybridizes to a perfectly matched probe. An equation for calculating T_m and conditions for nucleic acid hybridization are well known and can be found in Sambrook, J. et al. (1989) Molecular Cloning: A Laboratory Manual, 2^nd ed., vol. 1-3, Cold Spring Harbor Press, Plainview N.Y.; specifically see volume 2, chapter 9.

[0153] High stringency conditions for hybridization between polynucleotides of the present invention include wash conditions of 68 C. in the presence of about 0.2SSC and about 0.1% SDS, for 1 hour. Alternatively, temperatures of about 65 C., 60 C., 55 C., or 42 C. may be used. SSC concentration may be varied from about 0.1 to 2SSC, with SDS being present at about 0.1%. Typically, blocking reagents are used to block non-specific hybridization. Such blocking reagents include, for instance, sheared and denatured salmon sperm DNA at about 100-200 g/ml. Organic solvent, such as formamide at a concentration of about 35-50% v/v, may also be used under particular circumstances, such as for RNA:DNA hybridizations. Useful variations on these wash conditions will be readily apparent to those of ordinary skill in the art. Hybridization, particularly under high stringency conditions, may be suggestive of evolutionary similarity between the nucleotides. Such similarity is strongly indicative of a similar role for the nucleotides and their encoded polypeptides.

[0154] The term hybridization complex refers to a complex formed between two nucleic acid sequences by virtue of the formation of hydrogen bonds between complementary bases. A hybridization complex may be formed in solution (e.g., C₀t or R₀t analysis) or formed between one nucleic acid sequence present in solution and another nucleic acid sequence immobilized on a solid support (e.g., paper, membranes, filters, chips, pins or glass slides, or any other appropriate substrate to which cells or their nucleic acids have been fixed).

[0155] The words insertion and addition refer to changes in an amino acid or nucleotide sequence resulting in the addition of one or more amino acid residues or nucleotides, respectively.

[0156] Immune response can refer to conditions associated with inflammation, trauma, immune disorders, or infectious or genetic disease, etc. These conditions can be characterized by expression of various factors, e.g., cytokines, chemokines, and other signaling molecules, which may affect cellular and systemic defense systems.

[0157] An immunogenic fragment is a polypeptide or oligopeptide fragment of KPP which is capable of eliciting an immune response when introduced into a living organism, for example, a mammal. The term immunogenic fragment also includes any polypeptide or oligopeptide fragment of KPP which is useful in any of the antibody production methods disclosed herein or known in the art.

[0158] The term microarray refers to an arrangement of a plurality of polynucleotides, polypeptides, or other chemical compounds on a substrate.

[0159] The terms element and array element refer to a polynucleotide, polypeptide, or other chemical compound having a unique and defined position on a microarray.

[0160] The term modulate refers to a change in the activity of KPP. For example, modulation may cause an increase or a decrease in protein activity, binding characteristics, or any other biological, functional, or immunological properties of KPP.

[0161] The phrases nucleic acid and nucleic acid sequence refer to a nucleotide, oligonucleotide, polynucleotide, or any fragment thereof These phrases also refer to DNA or RNA of genomic or synthetic origin which may be single-stranded or double-stranded and may represent the sense or the antisense strand, to peptide nucleic acid (PNA), or to any DNA-like or RNA-like material.

[0162] Operably linked refers to the situation in which a first nucleic acid sequence is placed in a functional relationship with a second nucleic acid sequence. For instance, a promoter is operably linked to a coding sequence if the promoter affects the transcription or expression of the coding sequence. Operably linked DNA sequences may be in close proximity or contiguous and, where necessary to join two protein coding regions, in the same reading frame.

[0163] Peptide nucleic acid (PNA) refers to an antisense molecule or anti-gene agent which comprises an oligonucleotide of at least about 5 nucleotides in length linked to a peptide backbone of amino acid residues ending in lysine. The terminal lysine confers solubility to the composition. PNAs preferentially bind complementary single stranded DNA or RNA and stop transcript elongation, and may be pegylated to extend their lifespan in the cell.

[0164] Post-translational modification of an KPP may involve lipidation, glycosylation, phosphorylation, acetylation, racemization, proteolytic cleavage, and other modifications known in the art. These processes may occur synthetically or biochemically. Biochemical modifications will vary by cell type depending on the enzymatic milieu of KPP.

[0165] Probe refers to nucleic acid sequences encoding KPP, their complements, or fragments thereof, which are used to detect identical, allelic or related nucleic acid sequences. Probes are isolated oligonucleotides or polynucleotides attached to a detectable label or reporter molecule. Typical labels include radioactive isotopes, ligands, chemiluminescent agents, and enzymes. Primers are short nucleic acids, usually DNA oligonucleotides, which may be annealed to a target polynucleotide by complementary base-pairing. The primer may then be extended along the target DNA strand by a DNA polymerase enzyme. Primer pairs can be used for amplification (and identification) of a nucleic acid sequence, e.g., by the polymerase chain reaction (PCR).

[0166] Probes and primers as used in the present invention typically comprise at least 15 contiguous nucleotides of a known sequence. In order to enhance specificity, longer probes and primers may also be employed, such as probes and primers that comprise at least 20, 25, 30, 40, 50, 60, 70, 80, 90, 100, or at least 150 consecutive nucleotides of the disclosed nucleic acid sequences. Probes and primers may be considerably longer than these examples, and it is understood that any length supported by the specification, including the tables, figures, and Sequence Listing, maybe used.

[0167] Methods for preparing and using probes and primers are described in the references, for example Sambrook, J. et al. (1989) Molecular Cloning: A Laboratory Manual, 2^nd ed., vol. 1-3, Cold Spring Harbor Press, Plainview N.Y.; Ausubel, F. M. et al. (1987) Current Protocols in Molecular Biology, Greene Publ. Assoc. & Wiley-Intersciences, New York N.Y.; Innis, M. et al. (1990) PCR Protocols, A Guide to Methods and Applications, Academic Press, San Diego Calif. PCR primer pairs can be derived from a known sequence, for example, by using computer programs intended for that purpose such as Primer (Version 0.5, 1991, Whitehead Institute for Biomedical Research, Cambridge Mass.).

[0168] Oligonucleotides for use as primers are selected using software known in the art for such purpose. For example, OLIGO 4.06 software is useful for the selection of PCR primer pairs of up to 100 nucleotides each, and for the analysis of oligonucleotides and larger polynucleotides of up to 5,000 nucleotides from an input polynucleotide sequence of up to 32 kilobases. Similar primer selection programs have incorporated additional features for expanded capabilities. For example, the PrimOU primer selection program (available to the public from the Genome Center at University of Texas South West Medical Center, Dallas Tex.) is capable of choosing specific primers from megabase sequences and is thus useful for designing primers on a genome-wide scope. The Primer3 primer selection program (available to the public from the Whitehead Institute/MIT Center for Genome Research, Cambridge Mass.) allows the user to input a mispriming library, in which sequences to avoid as primer binding sites are user-specified. Primer3 is useful, in particular, for the selection of oligonucleotides for microarrays. (The source code for the latter two primer selection programs may also be obtained from their respective sources and modified to meet the user's specific needs.) The PrimeGen program (available to the public from the UK Human Genome Mapping Project Resource Centre, Cambridge UK) designs primers based on multiple sequence alignments, thereby allowing selection of primers that hybridize to either the most conserved or least conserved regions of aligned nucleic acid sequences. Hence, this program is useful for identification of both unique and conserved oligonucleotides and polynucleotide fragments. The oligonucleotides and polynucleotide fragments identified by any of the above selection methods are useful in hybridization technologies, for example, as PCR or sequencing primers, microarray elements, or specific probes to identify fully or partially complementary polynucleotides in a sample of nucleic acids. Methods of oligonucleotide selection are not limited to those described above.

[0169] A recombinant nucleic acid is a sequence that is not naturally occurring or has a sequence that is made by an artificial combination of two or more otherwise separated segments of sequence. This artificial combination is often accomplished by chemical synthesis or, more commonly, by the artificial manipulation of isolated segments of nucleic acids, e.g., by genetic engineering techniques such as those described in Sambrook, supra. The term recombinant includes nucleic acids that have been altered solely by addition, substitution, or deletion of a portion of the nucleic acid. Frequently, a recombinant nucleic acid may include a nucleic acid sequence operably linked to a promoter sequence. Such a recombinant nucleic acid may be part of a vector that is used, for example, to transform a cell.

[0170] Alternatively, such recombinant nucleic acids may be part of a viral vector, e.g., based on a vaccinia virus, that could be use to vaccinate a mammal wherein the recombinant nucleic acid is expressed, inducing a protective immunological response in the mammal.

[0171] A regulatory element refers to a nucleic acid sequence usually derived from untranslated regions of a gene and includes enhancers, promoters, introns, and 5 and 3 untranslated regions (UTRs). Regulatory elements interact with host or viral proteins which control transcription, translation, or RNA stability.

[0172] Reporter molecules are chemical or biochemical moieties used for labeling a nucleic acid, amino acid, or antibody. Reporter molecules include radionuclides; enzymes; fluorescent, chemiluminescent, or chromogenic agents; substrates; cofactors; inhibitors; magnetic particles; and other moieties known in the art.

[0173] An RNA equivalent, in reference to a DNA sequence, is composed of the same linear sequence of nucleotides as the reference DNA sequence with the exception that all occurrences of the nitrogenous base thymine are replaced with uracil, and the sugar backbone is composed of ribose instead of deoxyribose.

[0174] The term sample is used in its broadest sense. A sample suspected of containing KPP, nucleic acids encoding KPP, or fragments thereof may comprise a bodily fluid; an extract from a cell, chromosome, organelle, or membrane isolated from a cell; a cell; genomic DNA, RNA, or cDNA, in solution or bound to a substrate; a tissue; a tissue print; etc.

[0175] The terms specific binding and specifically binding refer to that interaction between a protein or peptide and an agonist, an antibody, an antagonist, a small molecule, or any natural or synthetic binding composition. The interaction is dependent upon the presence of a particular structure of the protein, e.g., the antigenic determinant or epitope, recognized by the binding molecule. For example, if an antibody is specific for epitope A, the presence of a polypeptide comprising the epitope A, or the presence of free unlabeled A, in a reaction containing free labeled A and the antibody will reduce the amount of labeled A that binds to the antibody.

[0176] The term substantially purified refers to nucleic acid or amino acid sequences that are removed from their natural environment and are isolated or separated, and are at least 60% free, preferably at least 75% free, and most preferably at least 90% free from other components with which they are naturally associated.

[0177] A substitution refers to the replacement of one or more amino acid residues or nucleotides by different amino acid residues or nucleotides, respectively.

[0178] Substrate refers to any suitable rigid or semi-rigid support including membranes, filters, chips, slides, wafers, fibers, magnetic or nonmagnetic beads, gels, tubing, plates, polymers, microparticles and capillaries. The substrate can have a variety of surface forms, such as wells, trenches, pins, channels and pores, to which polynucleotides or polypeptides are bound.

[0179] A transcript image or expression profile refers to the collective pattern of gene expression by a particular cell type or tissue under given conditions at a given time.

[0180] Transformation describes a process by which exogenous DNA is introduced into a recipient cell. Transformation may occur under natural or artificial conditions according to various methods well known in the art, and may rely on any known method for the insertion of foreign nucleic acid sequences into a prokaryotic or eukaryotic host cell. The method for transformation is selected based on the type of host cell being transformed and may include, but is not limited to, bacteriophage or viral infection, electroporation, heat shock, lipofection, and particle bombardment. The term transformed cells includes stably transformed cells in which the inserted DNA is capable of replication either as an autonomously replicating plasmid or as part of the host chromosome, as well as transiently transformed cells which-express the inserted DNA or RNA for limited periods of time.

[0181] A transgenic organism, as used herein, is any organism, including but not limited to animals and plants, in which one or more of the cells of the organism contains heterologous nucleic acid introduced by way of human intervention, such as by transgenic techniques well known in the art. The nucleic acid is introduced into the cell, directly or indirectly by introduction into a precursor of the cell, by way of deliberate genetic manipulation, such as by microinjection or by infection with a recombinant virus. In one alternative, the nucleic acid can be introduced by infection with a recombinant viral vector, such as a lentiviral vector (Lois, C. et al. (2002) Science 295:868-872). The term genetic manipulation does not include classical cross-breeding, or in vitro fertilization, but rather is directed to the introduction of a recombinant DNA molecule. The transgenic organisms contemplated in accordance with the present invention include bacteria, cyanobacteria, fungi, plants and animals. The isolated DNA of the present invention can be introduced into the host by methods known in the art, for example infection, transfection, transformation or transconjugation. Techniques for transferring the DNA of the present invention into such organisms are widely known and provided in references such as Sambrook et al. (1989), supra.

[0182] A variant of a particular nucleic acid sequence is defined as a nucleic acid sequence having at least 40% sequence identity to the particular nucleic acid sequence over a certain length of one of the nucleic acid sequences using blastn with the BLAST 2 Sequences tool Version 2.0.9 (May 07, 1999) set at default parameters. Such a pair of nucleic acids may show, for example, at least 50%, at least 60%, at least 70%, at least 80%, at least 85%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, or at least 99% or greater sequence identity over a certain defined length. A variant may be descnbed as, for example, an allelic (as defined above), splice, species, or polymorphic variant. A splice variant may have significant identity to a reference molecule, but will generally have a greater or lesser number of polynucleotides due to alternate splicing of exons during mRNA processing. The corresponding polypeptide may possess additional functional domains or lack domains that are present in the reference molecule. Species variants are polynucleotide sequences that vary from one species to another. The resulting polypeptides will generally have significant amino acid identity relative to each other. A polymorphic variant is a variation in the polynucleotide sequence of a particular gene between individuals of a given species. Polymorphic variants also may encompass single nucleotide polymorphisms (SNPs) in which the polynucleotide sequence varies by one nucleotide base. The presence of SNPs may be indicative of, for example, a certain population, a disease state, or a propensity for a disease state.

[0183] A variant of a particular polypeptide sequence is defined as a polypeptide sequence having at least 40% sequence identity to the particular polypeptide sequence over a certain length of one of the polypeptide sequences using blastp with the BLAST 2 Sequences tool Version 2.0.9 (May 07, 1999) set at default parameters. Such a pair of polypeptides may show, for example, at least 50%, at least 60%, at least 70%, at least 80%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, or at least 99% or greater sequence identity over a certain defined length of one of the polypeptides.

[0184] The Invention

[0185] The invention is based on the discovery of new human kinases and phosphatases (KPP), the polynucleotides encoding KPP, and the use of these compositions for the diagnosis, treatment, or prevention of cardiovascular diseases, immune system disorders, neurological disorders, disorders affecting growth and development, lipid disorders, cell proliferative disorders, and cancers.

[0186] Table 1 summarizes the nomenclature for the full length polynucleotide and polypeptide sequences of the invention. Each polynucleotide and its corresponding polypeptide are correlated to a single Incyte project identification number (Incyte Project ID). Each polypeptide sequence is denoted by both a polypeptide sequence identification number (Polypeptide SEQ ID NO:) and an Incyte polypeptide sequence number (Incyte Polypeptide ID) as shown. Each polynucleotide sequence is denoted by both a polynucleotide sequence identification number (Polynucleotide SEQ ID NO:) and an Incyte polynucleotide consensus sequence number (Incyte Polynucleotide ID) as shown.

[0187] Table 2 shows sequences with homology to the polypeptides of the invention as identified by BLAST analysis against the GenBank protein (genpept) database. Columns 1 and 2 show the polypeptide sequence identification number (Polypeptide SEQ ID NO:) and the corresponding Incyte polypeptide sequence number (Incyte Polypeptide ID) for polypeptides of the invention. Column 3 shows the GenBank identification number (GenBank ID NO:) of the nearest GenBank homolog. Column 4 shows the probability scores for the matches between each polypeptide and its homolog(s). Column 5 shows the annotation of the GenBank homolog(s) along with relevant citations where applicable, all of which are expressly incorporated by reference herein.

[0188] Table 3 shows various structural features of the polypeptides of the invention. Columns 1 and 2 show the polypeptide sequence identification number (SEQ ID NO:) and the corresponding Incyte polypeptide sequence number (Incyte Polypeptide ID) for each polypeptide of the invention. Column 3 shows the number of amino acid residues in each polypeptide. Column 4 shows potential phosphorylation sites, and column 5 shows potential glycosylation sites, as determined by the MOTIFS program of the GCG sequence analysis software package (Genetics Computer Group, Madison Wis.). Column 6 shows amino acid residues comprising signature sequences, domains, and motifs. Column 7 shows analytical methods for protein structure/function analysis and in some cases, searchable databases to which the analytical methods were applied.

[0189] Together, Tables 2 and 3 summarize the properties of polypeptides of the invention, and these properties establish that the claimed polypeptides are kinases and phosphatases. For example, SEQ ID NO:2 is 587 amino acids in length and is 94% identical, from residue M1 to residue Q536, to human 63 kDa protein kinase (GenBank ID g23903) as determined by the Basic Local Alignment Search Tool (BLAST). (See Table 2.) The BLAST probability score is 2.4e-271, which indicates the probability of obtaining the observed polypeptide sequence alignment by chance. SEQ ID NO:2 also contains an eukaryotic protein kinase domain as determined by searching for statistically significant matches in the hidden Markov model (HMM)-based PFAM database of conserved protein family domains. (See Table 3.) Data from BLIMPS, MOTIFS, and PROFILESCAN analyses provide further corroborative evidence that SEQ ID NO:2 is a MAP kinase isoform P63 protein kinase (SWISS_PROT:P31152). In another example, SEQ ID NO:5 is 50% identical, from residue G55 to residue V439, to rabbit myosin light chain kinase (GenBank ID g165506) as determined by BLAST. The BLAST probability score is 5.3e-100. SEQ ID NO:5 also contains a eukaryotic protein kinase domain as determined by searching for statistically significant matches in the hidden Markov model (HMM)-based PFAM database. Data from BLIMPS and MOTIFS analyses provide further corroborative evidence that SEQ ID NO:5 is a human kinase. In yet another example, SEQ ID NO:7 is 53% identical, from residue G33 to residue P1312, to rat SCOP (suprachiasmatic nucleus (SCN) circadian oscillatory protein) (GenBank ID g4884492), a putative 2C-type protein phosphatase, as determined by BLAST. The BLAST probability score is 0.0. SEQ ED NO:7 also contains a protein phosphatase 2C domain as determined by searching for statistically significant matches in the hidden Markov model (H)-based PFAM database. Additional data obtained from searching the PFAM database, and from BLIMPS and MOTIFS analyses, also provide evidence that SEQ ID NO:7 comprises leucine-rich repeats, associated with protein-protein interactions. In another example, SEQ ID NO:9 is 69% identical, from residue W43 to residue D602, to human mixed lineage kinase MLK1 (GenBank ID g12005724) as determined by BLAST. The BLAST probability score is 6.9e-250. SEQ ID NO:9 also contains an SH3 kinase domain as well as a protein kinase domain as determined by searching for statistically significant matches in the hidden Markov model (HMM)-based PFAM database. Data from BLIMPS, MOTIFS, PROFILESCAN, and additional BLAST analyses provide further corroborative evidence that SEQ ID NO:9 is a protein kinase. In another example, SEQ ID NO:10 is 36% identical, from residue R48:to residue N234, to rat adenylate kinase isozyme 1 (GenBank ID g8918488) as determined by BLAST. The BLAST probability score is 8.1e-33. SEQ ID NO:10 also contains an adenylate kinase active site domain as determined by searching for statistically significant matches in the hidden Markov model (HMM)-based PFAM database. Data from BLIMPS, MOTIFS, and PROFILESCAN analyses provide further corrobo rative evidence that SEQ ID NO:10 is an adenylate kinase. In a further example, SEQ ID NO:11 is 91% identical, from residue M1 to residue D550, to a human testes-specific putative tyrosine phosphatase (GenBank ID g3549240) as determined by BLAST. The BLAST probability score is 1.3e-268. SEQ ID NO:11 also contains a tyrosine specific protein phosphatases signature domain as determined by searching for statistically significant matches in the PROFILESCAN database of conserved protein family domains. Data from MOTIFS analysis provide further corroborative evidence that SEQ ID NO:11 is a tyrosine phosphatase. In yet another example, SEQ ID NO:12 is 79% identical from residue M1 to residue P1544, and 62% identical from residue P1053 to residue P1547, to Mus musculus syntrophin-associated serine threonine protein kinase (GenBank ID g5757703) as determined by BLAST. The BLAST probability score is 0.0 from residue M1 to residue P1544, and 1.5e-143 from residue P1053 to residue P1547, which indicates the probability of obtaining the observed polypeptide sequence alignment by chance. SEQ ID NO:12 also contains a PDZ membrane associated domain, a protein kinase domain, and a protein kinase C terminal domain as determined by searching for statistically significant matches in the hidden Markov model (HMM)-based PFAM database. Data from BLIMPS and MOTIFS analyses provide further corroborative evidence that SEQ ID NO:12 is a syntrophin-associated serine threonine kinase. In a further example, SEQ ID NO:13 is 30% identical from residue I354 to residue L498, 40% identical from residue G259 to residue G310, and 31% identical from residue K115 to residue E186, to Fagus sylvatica protein phosphatase 2C (GenBank ID g7768151) as determined by BLAST. The BLAST probability score is 4.4e-12. SEQ ID NO:13 also contains a protein phosphatase 2C domain as determined by searching for statistically significant matches in the hidden Markov model (HMM)-based PFAM database. Data from BLIMPS and MOTIFS analyses provide further corroborative evidence that SEQ ID NO:13 is a protein phosphatase 2C. In another example, SEQ ID NO:14 is 96% identical, from residue M1 to residue V1036, to Mus musculus receptor tyrosine kinase (GenBank ID g1457961) as determined by BLAST. The BLAST probability score is 0.0, which indicates the probability of obtaining the observed polypeptide sequence alignment by chance. SEQ ID NO:14 also contains an Ephrin receptor ligand binding domain, a SAM domain, a fibronectin type III domain, and a protein kinase domain as determined by searching for statistically significant matches in the hidden Markov model (HMM)-based PFAM database. Data from BLIMPS, MOTIFS, and PROFILESCAN analyses and BLAST analyses of the PRODOM and DOMO databases provide further corroborative evidence that SEQ ID NO:14 is a protein tyrosine kinase. In addition, TMAP analysis indicates that SEQ ID NO:14 contains five transmembrane domains. In a further example, SEQ ID NO:15 is 98% identical, from residue M1 to residue G488, to the human AMP-activated protein kinase gamma 3 subunit (GenBank ID g6688201) as determined by BLAST. The BLAST probability score is 9.3e-261, which indicates the probability of obtaining the observed polypeptide sequence alignment by chance. SEQ ID NO:15 also contains four CBS domains as determined by searching for statistically significant matches in the hidden Markov model (HMM)-based PFAM database. CBS domains are found in proteins of the AMP-activated protein kinase gamma subunit family. Data from PRODOM and DOMO analyses provide further corroborative evidence that SEQ ID NO:15 is a proteinkinase. SEQ ID NO:1, SEQ ID NO:3-4, SEQ ID NO:6, SEQ ID NO:8, and SEQ ID NO:9 were analyzed and annotated in a similar manner. The algorithms and parameters for the analysis of SEQ ID NO:1-15 are described in Table 7.

[0190] As shown in Table 4, the full length polynucleotide sequences of the present invention were assembled using cDNA sequences or coding (exon) sequences derived from genomic DNA, or any combination of these two types of sequences. Column 1 lists the polynucleotide sequence identification number (Polynucleotide SEQ ID NO:), the corresponding Incyte polynucleotide consensus sequence number (Incyte ID) for each polynucleotide of the invention, and the length of each polynucleotide sequence in base pairs. Column 2 shows the nucleotide start (5) and stop (3) positions of the cDNA and/or genomic sequences used to assemble the full length polynucleotide sequences of the invention, and of fragments of the polynucleotide sequences which are useful, for example, in hybridization or amplification technologies that identify SEQ ID NO:16-30 or that distinguish between SEQ ID NO:16-30 and related polynucleotide sequences.

[0191] The polynucleotide fragments described in Column 2 of Table 4 may refer specifically, for example, to Incyte cDNAs derived from tissue-specific cDNA libraries or from pooled cDNA libraries. Alternatively, the polynucleotide fragments described in column 2 may refer to GenBank cDNAs or ESTs which contributed to the assembly of the full length polynucleotide sequences. In addition, the polynucleotide fragments described in column 2 may identify sequences derived from the ENSEMBL (The Sanger Centre, Cambridge, UK) database (i.e., those sequences including the designation ENST). Alternatively, the polynucleotide fragments described in column 2 may be derived from the NCBI RefSeq Nucleotide Sequence Records Database (i.e., those sequences including the designation NM or NT) or the NCBI RefSeq Protein Sequence Records (i.e., those sequences including the designation NP). Alternatively, the polynucleotide fragments described in column 2 may refer to assemblages of both cDNA and Genscan-predicted exons brought together by an exon stitching algorithm. For example, a polynucleotide sequence identified as FL_XXXXXX_N₁N₂YYYYY_N₃N₄ represents a stitched sequence in which XXXXXX is the identification number of the cluster of sequences to which the algorithm was applied, and YYYYY is the number of the prediction generated by the algorithm, and N_{1,2,3 . . .} , if present, represent specific exons that may have been manually edited during analysis (See Example V). Alternatively, the polynucleotide fragments in column 2 may refer to assemblages of exons brought together by an exon-stretching algorithm. For example, a polynucleotide sequence identified as FLXXXXXX_gAAAAA_gBBBBB1_N is a stretched sequence, with XXXXXX being the Incyte project identification number, gAAAAA being the GenBank identification number of the human genomic sequence to which the exon-stretching algorithm was applied, gBBBBB being the GenBank identification number or NCBI RefSeq identification number of the nearest GenBank protein homolog, and N referring to specific exons (See Example V). In instances where a RefSeq sequence was used as a protein homolog for the exon-stretching algorithm, a RefSeq identifier (denoted by NM, NP, or NT) may be used in place of the GenBank identifier (i.e., gBBBBB).

[0192] Alternatively, a prefix identifies component sequences that were hand-edited, predicted from genomic DNA sequences, or derived from a combination of sequence analysis methods. The following Table lists examples of component sequence prefixes and corresponding sequence analysis methods associated with the prefixes (see Example IV and Example V).

Prefix	Type of analysis and/or examples of programs
GNN, GFG,	Exon prediction from genomic sequences using,
ENST	for example, GENSCAN (Stanford University, CA,
	USA) or FGENES (Computer Genomics Group,
	The Sanger Centre, Cambridge, UK).
GBI	Hand-edited analysis of genomic sequences.
FL	Stitched or stretched genomic sequences (see Example V).
INCY	Full length transcript and exon prediction from
	mapping of EST sequences to the genome. Genomic
	location and EST composition data are combined to
	predict the exons and resulting transcript.

[0193] In some cases, Incyte cDNA coverage redundant with the sequence coverage shown in Table 4 was obtained to confirm the final consensus polynucleotide sequence, but the relevant Incyte cDNA identification numbers are not shown.

[0194] Table 5 shows the representative cDNA libraries for those full length polynucleotide sequences which were assembled using Incyte cDNA sequences. The representative cDNA library is the Incyte cDNA library which is most frequently represented by the Incyte cDNA sequences which were used to assemble and confirm the above polynucleotide sequences. The tissues and vectors which were used to construct the cDNA libraries shown in Table 5 are described in Table 6.

[0195] The invention also encompasses KPP variants. A preferred KPP variant is one which has at least about 80%, or alternatively at least about 90%, or even at least about 95% amino acid sequence identity to the KPP amino acid sequence, and which contains at least one functional or structural characteristic of KPP.

[0196] The invention also encompasses polynucleotides which encode KPP. In a particular embodiment, the invention encompasses a polynucleotide sequence comprising a sequence selected from the group consisting of SEQ ID NO:16-30, which encodes KPP. The polynucleotide sequences of SEQ ID NO:16-30, as presented in the Sequence Listing, embrace the equivalent RNA sequences, wherein occurrences of the nitrogenous base thymine are replaced with uracil, and the sugar backbone is composed of noose instead of deoxyribose.

[0197] The invention also encompasses a variant of a polynucleotide sequence encoding KPP. In particular, such a variant polynucleotide sequence will have at least about 70%, or alternatively at least about 85%, or even at least about 95% polynucleotide sequence identity to the polynucleotide sequence encoding KPP. A particular aspect of the invention encompasses a variant of a polynucleotide sequence comprising a sequence selected from the group consisting of SEQ ID NO:16-30 which has at least about 70%, or alternatively at least about 85%, or even at least about 95% polynucleotide sequence identity to a nucleic acid sequence selected from the group consisting of SEQ ID NO:16-30. Any one of the polynucleotide variants described above can encode an amino acid sequence which contains at least one functional or structural characteristic of KPP.

[0198] In addition, or in the alternative, a polynucleotide variant of the invention is a splice variant of a polynucleotide sequence encoding KPP. A splice variant may have portions which have significant sequence identity to the polynucleotide sequence encoding KPP, but will generally have a greater or lesser number of polynucleotides due to additions or deletions of blocks of sequence arising from alternate splicing of exons during mRNA processing. A splice variant may have less than about 70%, or alternatively less than about 60%, or alternatively less than about 50% polynucleotide sequence identity to the polynucleotide sequence encoding KPP over its entire length; however, portions of the splice variant will have at least about 70%, or alternatively at least about 85%, or alternatively at least about 95%, or alternatively 100% polynucleotide sequence identity to portions of the polynucleotide sequence encoding KPP. Any one of the splice variants described above can encode an amino acid sequence which contains at least one functional or structural characteristic of KPP.

[0199] It will be appreciated by those skilled in the art that as a result of the degeneracy of the genetic code, a multitude of polynucleotide sequences encoding KPP, some bearing minimal similarity to the polynucleotide sequences of any known and naturally occurring gene, may be produced. Thus, the invention contemplates each and every possible variation of polynucleotide sequence that could be made by selecting combinations based on possible codon choices. These combinations are made in accordance with the standard triplet genetic code as applied to the polynucleotide sequence of naturally occurring KPP, and all such variations are to be considered as being specifically disclosed.

[0200] Although nucleotide sequences which encode KPP and its variants are generally capable of hybridizing to the nucleotide sequence of the naturally occurring KPP under appropriately selected conditions of stringency, it may be advantageous to produce nucleotide sequences encoding KPP or its derivatives possessing a substantially different codon usage, e.g., inclusion of non-naturally occurring codons. Codons may be selected to increase the rate at which expression of the peptide occurs in a particular prokaryotic or eukaryotic host in accordance with the frequency with which particular codons are utilized by the host. Other reasons for substantially altering the nucleotide sequence encoding KPP and its derivatives without altering the encoded amino acid sequences include the production of RNA transcripts having more desirable properties, such as a greater half-life, than transcripts produced from the naturally occurring sequence.

[0201] The invention also encompasses production of DNA sequences which encode KPP and KPP derivatives, or fragments thereof, entirely by synthetic chemistry. After production, the synthetic sequence may be inserted into any of the many available expression vectors and cell systems using reagents well known in the art. Moreover, synthetic chemistry may be used to introduce mutations into a sequence encoding KPP or any fragment thereof.

[0202] Also encompassed by the invention are polynucleotide sequences that are capable of hybridizing to the claimed polynucleotide sequences, and, in particular, to those shown in SEQ ID NO:16-30 and fragments thereof under various conditions of stringency. (See, e.g., Wahl, G. M. and S. L. Berger (1987) Methods Enzymol. 152:399-407; Kimmel, A. R. (1987) Methods Enzymol. 152:507-511.) Hybridization conditions, including annealing and wash conditions, are described in Definitions.

[0203] Methods for DNA sequencing are well known in the art and may be used to practice any of the embodiments of the invention. The methods may employ such enzymes as the Klenow fragment of DNA polymerase I, SEQUENASE (US Biochemical, Cleveland Ohio), Taq polymerase (Applied Biosystems), thermostable T7 polymerase (Amersham Pharmacia Biotech, Piscataway N.J.), or combinations of polymerases and proofreading exonucleases such as those found in the ELONGASE amplification system (Life Technologies, Gaithersburg Md.). Preferably, sequence preparation is automated with machines such as the MICROLAB 2200 liquid transfer system (Hamilton, Reno Nev.), PTC200 thermal cycler (MJ Research, Watertown Mass.) and ABI CATALYST 800 thermal cycler (Applied Biosystems). Sequencing is then carried out using either the ABI 373 or 377 DNA sequencing system (Applied Biosystems), the MEGABACE 1000 DNA sequencing system (Molecular Dynamics, Sunnyvale Calif.), or other systems known in the art. The resulting sequences are analyzed using a variety of algorithms which are well known in the art. (See, e.g., Ausubel, F. M. (1997) Short Protocols in Molecular Biology, John Wiley & Sons, New York N.Y., unit 7.7; Meyers, R. A. (1995) Molecular Biology and Biotechnology, Wiley VCH, New York N.Y., pp. 856-853.)

[0204] The nucleic acid sequences encoding KPP may be extended utilizing a partial nucleotide sequence and employing various PCR-based methods known in the art to detect upstream sequences, such as promoters and regulatory elements. For example, one method which may be employed, restriction-site PCR, uses universal and nested primers to amplify unknown sequence from genomic DNA within a cloning vector. (See, e.g., Sarkar, G. (1993) PCR Methods Applic. 2:318-322.) Another method, inverse PCR, uses primers that extend in divergent directions to amplify unknown sequence from a circularized template. The template is derived from restriction fragments comprising a known genomic locus and surrounding sequences. (See, e.g., Triglia, T. et al. (1988) Nucleic Acids Res. 16:8186.) A third method, capture PCR, involves PCR amplification of DNA fragments adjacent to known sequences in human and yeast artificial chromosome DNA. (See, e.g., Lagerstrom, M. et al. (1991) PCR Methods Applic. 1:111-119.) In this method, multiple restriction enzyme digestions and ligations may be used to insert an engineered double-stranded sequence into a region of unknown sequence before performing PCR Other methods which may be used to retrieve unknown sequences are known in the art. (See, e.g., Parker, J. D. et al. (1991) Nucleic Acids Res. 19:3055-3060). Additionally, one may use PCR, nested primers, and PROMOTERFINDER libraries (Clontech, Palo Alto Calif.) to walk genomic DNA. This procedure avoids the need to screen libraries and is useful in finding intron/exon junctions. For all PCR-based methods, primers maybe designed using commercially available software, such as OLIGO 4.06 primer analysis software (National Biosciences, Plymouth Minn.) or another appropriate program, to be about 22 to 30 nucleotides in length, to have a GC content of about 50% or more, and to anneal to the template at temperatures of about 68 C. to 72 C.

[0205] When screening for full length cDNAs, it is preferable to use libraries that have been size-selected to include larger cDNAs. In addition, random-primed libraries, which often include sequences containing the 5 regions of genes, are preferable for situations in which an oligo d(T) library does not yield a full-length cDNA. Genomic libraries may be useful for extension of sequence into 5 non-transcribed regulatory regions.

[0206] Capillary electrophoresis systems which are commercially available may be used to analyze the size or confirm the nucleotide sequence of sequencing or PCR products. In particular, capillary sequencing may employ flowable polymers for electrophoretic separation, four different nucleotide-specific, laser-stimulated fluorescent dyes, and a charge coupled device camera for detection of the emitted wavelengths. Output/light intensity may be converted to electrical signal using appropriate software (e.g., GENOTYPER and SEQUENCE NAVIGATOR, Applied Biosystems), and the entire process from loading of samples to computer analysis and electronic data display may be computer controlled. Capillary electrophoresis is especially preferable for sequencing small DNA fragments which may be present in limited amounts in a particular sample.

[0207] In another embodiment of the invention, polynucleotide sequences or fragments thereof which encode KPP may be cloned in recombinant DNA molecules that direct expression of KPP, or fragments or functional equivalents thereof, in appropriate host cells. Due to the inherent degeneracy of the genetic code, other DNA sequences which encode substantially the same or a functionally equivalent amino acid sequence maybe produced and used to express KPP.

[0208] The nucleotide sequences of the present invention can be engineered using methods generally known in the art in order to alter KPP-encoding sequences for a variety of purposes including, but not limited to, modification of the cloning, processing, and/or expression of the gene product. DNA shuffling by random fragmentation and PCR reassembly of gene fragments and synthetic oligonucleotides may be used to engineer the nucleotide sequences. For example, oligonucleotide-mediated site-directed mutagenesis may be used to introduce mutations that create new restriction sites, alter glycosylation patterns, change codon preference, produce splice variants, and so forth.

[0209] The nucleotides of the present invention maybe subjected to DNA shuffling techniques such as MOLECULARBREEDING (Maxygen Inc., Santa Clara Calif.; described in U.S. Pat. No. 5,837,458; Chang, C. -C. et al. (1999) Nat. Biotechnol. 17:793-797; Christians, F. C. et al. (1999) Nat. Biotechnol. 17:259-264; and Crameri, A. et al. (1996) Nat. Biotechnol. 14:315-319) to alter or improve the biological properties of KPP, such as its biological or enzymatic activity or its ability to bind to other molecules or compounds. DNA shuffling is a process by which a library of gene variants is produced using PCR-mediated recombination of gene fragments. The library is then subjected to selection or screening procedures that identify those gene variants with the desired properties. These preferred variants may then be pooled and further subjected to recursive rounds of DNA shuffling and selection/screening. Thus, genetic diversity is created through artificial breeding and rapid molecular evolution. For example, fragments of a single gene containing random point mutations may be recombined, screened, and then reshuffled until the desired properties are optimized. Alternatively, fragments of a given gene maybe recombined with fragments of homologous genes in the same gene family, either from the same or different species, thereby maximizing the genetic diversity of multiple naturally occurring genes in a directed and controllable manner.

[0210] In another embodiment, sequences encoding KPP may be synthesized, in whole or in part, using chemical methods well known in the art. (See, e.g., Caruthers, M. H. et al. (1980) Nucleic Acids Symp. Ser. 7:215-223; and Horn, T. et al. (1980) Nucleic Acids Symp. Ser. 7:225-232.) Alternatively, KPP itself or a fragment thereof may be synthesized using chemical methods. For example, peptide synthesis can be performed using various solution-phase or solid-phase techniques. (See, e.g., Creighton, T. (1984) Proteins, Structures and Molecular Properties, WH Freeman, New York N.Y., pp. 55-60; and Roberge, J. Y. et al. (1995) Science 269:202-204.) Automated synthesis may be achieved using the ABI 431A peptide synthesizer (Applied Biosystems). Additionally, the amino acid sequence of KPP, or any part thereof, may be altered during direct synthesis and/or combined with sequences from other proteins, or any part thereof, to produce a variant polypeptide or a polypeptide having a sequence of a naturally occurring polypeptide.

[0211] The peptide may be substantially purified by preparative high performance liquid chromatography. (See, e.g., Chiez, R. M. and F. Z. Regnier (1990) Methods Enzymol. 182:392-421.) The composition of the synthetic peptides may be confirmed by amino acid analysis or by sequencing. (See, e.g., Creighton, supra, pp. 28-53.)

[0212] In order to express a biologically active KPP, the nucleotide sequences encoding KPP or derivatives thereof may be inserted into an appropriate expression vector, i.e., a vector which contains the necessary elements for transcriptional and translational control of the inserted coding sequence in a suitable host. These elements include regulatory sequences, such as enhancers, constitutive and inducible promoters, and 5 and 3 untranslated regions in the vector and in polynucleotide sequences encoding KPP. Such elements may vary in their strength and specificity. Specific initiation signals may also be used to achieve more efficient translation of sequences encoding KPP. Such signals include the ATG initiation codon and adjacent sequences, e.g. the Kozak sequence. In cases where sequences encoding KPP and its initiation codon and upstream regulatory sequences are inserted into the appropriate expression vector, no additional transcriptional or translational control signals may be needed. However, in cases where only coding sequence, or a fragment thereof, is inserted, exogenous translational control signals including an in-frame ATG initiation codon should be provided by the vector. Exogenous translational elements and initiation codons maybe of various origins, both natural and synthetic. The efficiency of expression may be enhanced by the inclusion of enhancers appropriate for the particular host cell system used. (See, e.g., Scharf, D. et al. (1994) Results Probl. Cell Differ. 20:125-162.)

[0213] Methods which are well known to those skilled in the art may be used to construct expression vectors containing sequences encoding KPP and appropriate transcriptional and translational control elements. These methods include in vitro recombinant DNA techniques, synthetic techniques, and in vivo genetic recombination. (See, e.g., Sambrook, J. et al. (1989) Molecular Cloning, A Laboratory Manual, Cold Spring Harbor Press, Plainview N.Y., ch. 4, 8, and 16-17; Ausubel, F. M. et al. (1995) Current Protocols in Molecular Biology, John Wiley & Sons, New York N.Y., ch.9, 13, and 16.)

[0214] A variety of expression vector/host systems may be utilized to contain and express sequences encoding KPP. These include, but are not limited to, microorganisms such as bacteria transformed with recombinant bacteriophage, plasmid, or cosmid DNA expression vectors; yeast transformed with yeast expression vectors; insect cell systems infected with viral expression vectors (e.g., baculovirus); plant cell systems transformed with viral expression vectors (e.g., cauliflower mosaic virus, CaMV, or tobacco mosaic virus, TMV) or with bacterial expression vectors (e.g., Ti or pBR322 plasmids); or animal cell systems. (See, e.g., Sambrook, supra; Ausubel, supra; Van Heeke, G. and S. M. Schuster (1989) J. Biol. Chem. 264:5503-5509; Engelhard, E. K. et al. (1994) Proc. Natl. Acad. Sci. USA 91:3224-3227; Sandig, V. et al. (1996) Hum. Gene Ther. 7:1937-1945; Takamatsu, N. (1987) EMBO J. 6:307-311; The McGraw Hill Yearbook of Science and Technology (1992) McGraw Hill, New York N.Y., pp. 191-196; Logan, J. and T. Shenk (1984) Proc. Natl. Acad. Sci. USA 81:3655-3659; and Harrington, J. J. et al. (1997) Nat. Genet. 15:345-355.) Expression vectors derived from retroviruses, adenoviruses, or herpes or vaccinia viruses, or from various bacterial plasmids, may be used for delivery of nucleotide sequences to the targeted organ, tissue, or cell population. (See, e.g., Di Nicola, M. et al. (1998) Cancer Gen. Ther. 5(6):350-356; Yu, M. et al. (1993) Proc. Natl. Acad. Sci. USA 90(13):6340-6344; Buller, R. M. et al. (1985) Nature 317(6040):813-815; McGregor, D. P. et al.(1994) Mol. Immunol. 31(3):219-226; and Verma, I. M. and N. Somia (1997) Nature 389:239-242.) The invention is not limited by the host cell employed.

[0215] In bacterial systems, a number of cloning and expression vectors may be selected depending upon the use intended for polynucleotide sequences encoding KPP. For example, routine cloning, subcloning, and propagation of polynucleotide sequences encoding KPP can be achieved using a multifunctional E. coli vector such as PBLUESCRIPT (Stratagene, La Jolla Calif.) or PSPORT1 plasmid (Life Technologies). Ligation of sequences encoding KPP into the vector's multiple cloning site disrupts the lacZ gene, allowing a colorimetric screening procedure for identification of transformed bacteria containing recombinant molecules. In addition, these vectors may be useful for in vitro transcription, dideoxy sequencing, single strand rescue with helper phage, and creation of nested deletions in the cloned sequence. (See, e.g., Van Heeke, G. and S. M. Schuster (1989) J. Biol. Chem. 264:5503-5509.) When large quantities of KPP are needed, e.g. for the production of, antibodies, vectors which direct high level expression of KPP may be used. For example, vectors containing the strong, inducible SP6 or T7 bacteriophage promoter may be used.

[0216] Yeast expression systems maybe used for production of KPP. A number of vectors containing constitutive or inducible promoters, such as alpha factor, alcohol oxidase, and PGH promoters, may be used in the yeast Saccharomyces cerevisiae or Pichia pastoris. In addition, such vectors direct either the secretion or intracellular retention of expressed proteins and enable integration of foreign sequences into the host genome for stable propagation. (See, e.g., Ausubel, 1995, supra; Bitter, G. A. et al. (1987) Methods Enzymol. 153:516-544; and Scorer, C. A. et al. (1994) Bio/Technology 12:181-184.)

[0217] Plant systems may also be used for expression of KPP. Transcription of sequences encoding KPP may be driven by viral promoters, e.g., the 35S and 19S promoters of CaMV used alone or in combination with the omega leader sequence from TMV (Takamatsu, N. (1987) EMBO J. 6:307-311). Alternatively, plant promoters such as the small subunit of RUBISCO or heat shock promoters maybe used. (See, e.g., Coruzzi, G. et al. (1984) EMBO J.3:1671-1680; Broglie, R. et al. (1984) Science 224:838-843; and Winter, J. et al. (1991) Results Probl. Cell Differ. 17:85-105.) These constructs can be introduced into plant cells by direct DNA transformation or pathogen-mediated transfection. (See, e.g., The McGraw Hill Yearbook of Science and Technology (1992) McGraw Hill, New York N.Y., pp. 191-196.)

[0218] In mammalian cells, a number of viral-based expression systems may be utilized. In cases where an adenovirus is used as an expression vector, sequences encoding KPP may be ligated into an adenovirus transcription/translation complex consisting of the late promoter and tripartite leader sequence. Insertion in a non-essential E1 or E3 region of the viral genome may be used to obtain infective virus which expresses KPP in host cells. (See, e.g., Logan, J. and T. Shenk (1984) Proc. Natl. Acad. Sci. USA 81:3655-3659.) In addition, transcription enhancers, such as the Rous sarcoma virus (RSV) enhancer, may be used to increase expression in mammalian host cells. SV40 or EBV-based vectors may also be used for high-level protein expression.

[0219] Human artificial chromosomes (HACs) may also be employed to deliver larger fragments of DNA than can be contained in and expressed from a plasmid. HACs of about 6 kb to 10 Mb are constructed and delivered via conventional delivery methods (liposomes, polycationic amino polymers, or vesicles) for therapeutic purposes. (See, e.g., Harrington, J. J. et al. (1997) Nat. Genet. 15:345-355.)

[0220] For long term production of recombinant proteins in mammalian systems, stable expression of KPP in cell lines is preferred. For example, sequences encoding KPP can be transformed into cell lines using expression vectors which may contain viral origins of replication and/or endogenous expression elements and a selectable marker gene on the same or on a separate vector. Following the introduction of the vector, cells may be allowed to grow for about 1 to 2 days in enriched media before being switched to selective media. The purpose of the selectable marker is to confer resistance to a selective agent, and its presence allows growth and recovery of cells which successfully express the introduced sequences. Resistant clones of stably transformed cells may be propagated using tissue culture techniques appropriate to the cell type.

[0221] Any number of selection systems may be used to recover transformed cell lines. These include, but are not limited to, the herpes simplex virus thymidine kinase and adenine phosphoribosyltransferase genes, for use in tk and apr cells, respectively. (See, e.g., Wigler, M. et al. (1977) Cell 11:223-232; Lowy, I. et al. (1980) Cell 22:817-823.) Also, antimetabolite, antibiotic, or herbicide resistance can be used as the basis for selection. For example, dhfr confers resistance to methotrexate; neo confers resistance to the aminoglycosides neomycin and G418; and als and pat confer resistance to chlorsulfuron and phosphinotricin acetyltransferase, respectively. (See, e.g., Wigler, M. et al. (1980) Proc. Natl. Acad. Sci. USA 77:3567-3570; Colbere-Garapin, P. et al. (1981) J. Mol. Biol. 150:1-14.) Additional selectable genes have been described, e.g., trpB and hisD, which alter cellular requirements for metabolites. (See, e.g., Hartman, S. C. and R. C. Mulligan (1988) Proc. Natl. Acad. Sci. USA 85:8047-8051.) Visible markers, e.g., anthocyanins, green fluorescent proteins (GFP; Clontech), glucuronidase and its substrate -glucuronide, or luciferase and its substrate luciferin may be used. These markers can be used not only to identify transformants, but also to quantify the amount of transient or stable protein expression attributable to a specific vector system. (See, e.g., Rhodes, C. A. (1995) Methods Mol. Biol. 55:121-131.)

[0222] Although the presence/absence of marker gene expression suggests that the gene of interest is also present, the presence and expression of the gene may need to be confirmed. For example, if the sequence encoding KPP is inserted within a marker gene sequence, transformed cells containing sequences encoding KPP can be identified by the absence of marker gene function. Alternatively, a marker gene can be placed in tandem with a sequence encoding KPP under the control of a single promoter. Expression of the marker gene in response to induction or selection usually indicates expression of the tandem gene as well.

[0223] In general, host cells that contain the nucleic acid sequence encoding KPP and that express KPP may be identified by a variety of procedures known to those of skill in the art. These procedures include, but are not limited to, DNA-DNA or DNA-RNA hybridizations, PCR amplification, and protein bioassay or immunoassay techniques which include membrane, solution, or chip based technologies for the detection and/or quantification of nucleic acid or protein sequences.

[0224] Immunological methods for detecting and measuring the expression of KPP using either specific polyclonal or monoclonal antibodies are known in the-art. Examples of such techniques include enzyme-linked immunosorbent assays (ELISAs), radioimmunoassays (RIAs), and fluorescence activated cell sorting (FACS). A two-site, monoclonal-based immunoassay utilizing monoclonal antibodies reactive to two non-interfering epitopes on KPP is preferred, but a competitive binding assay may be employed. These and other assays are well known in the art. (See, e.g., Hampton, R. et al. (1990) Serological Methods, a Laboratory Manual, APS Press, St. Paul Minn., Sect. IV; Coligan, J. E. et al. (1997) Current Protocols in Immunology, Greene Pub. Associates and Wiley-Interscience, New York N.Y.; and Pound, J. D. (1998) Immunochemical Protocols, Humana Press, Totowa N.J.)

[0225] A wide variety of labels and conjugation techniques are known by those skilled in the art and may be used in various nucleic acid and amino acid assays. Means for producing labeled hybridization or PCR probes for detecting sequences related to polynucleotides encoding KPP include oligolabeling, nick translation, end-labeling, or PCR amplification using a labeled nucleotide. Alternatively, the sequences encoding KPP, or any fragments thereof, may be cloned into a vector for the production of an mRNA probe. Such vectors are known in the art, are commercially available, and may be used to synthesize RNA probes in vitro by addition of an appropriate RNA polymerase such as T7, T3, or SP6 and labeled nucleotides. These procedures may be conducted using a variety of commercially available kits, such as those provided by Amersham Pharmacia Biotech, Promega (Madison Wis.), and US Biochemical. Suitable reporter molecules or labels which may be used for ease of detection include radionuclides, enzymes, fluorescent, chemiluminescent, or chromogenic agents, as well as substrates, cofactors, inhibitors, magnetic particles, and the like.

[0226] Host cells transformed with nucleotide sequences encoding KPP may be cultured under conditions suitable for the expression and recovery of the protein from cell culture. The protein produced by a transformed cell may be secreted or retained intracellularly depending on the sequence and/or the vector used. As will be understood by those of skill in the art, expression vectors containing polynucleotides which encode KPP may be designed to contain signal sequences which direct secretion of KPP through a prokaryotic or eukaryotic cell membrane.

[0227] In addition, a host cell strain may be chosen for its ability to modulate expression of the inserted sequences or to process the expressed protein in the desired fashion. Such modifications of the polypeptide include, but are not limited to, acetylation, carboxylation, glycosylation, phosphorylation, lipidation, and acylation. Post-translational processing which cleaves a prepro or pro form of the protein may also be used to specify protein targeting, folding, and/or activity. Different host cells which have specific cellular machinery and characteristic mechanisms for post-translational activities (e.g., CHO, HeLa, MDCK, HEK293, and W138) are available from the American Type Culture Collection (ATCC, Manassas Va.) and may be chosen to ensure the correct modification and processing of the foreign protein.

[0228] In another embodiment of the invention, natural, modified, or recombinant nucleic acid sequences encoding KPP may be ligated to a heterologous sequence resulting in translation of a fusion protein in any of the aforementioned host systems. For example, a chimeric KPP protein containing a heterologous moiety that can be recognized by a commercially available antibody may facilitate the screening of peptide libraries for inhibitors of KPP activity. Heterologous protein and peptide moieties may also facilitate purification of fusion proteins using commercially available affinity matrices. Such moieties include, but are not limited to, glutathione S-transferase (GST), maltose binding protein (MBP), thioredoxin (Trx), calmodulin binding peptide (CBP), 6-His, FLAG, c-myc, and hemagglutinin (HA). GST, MBP, Trx, CBP, and 6-His enable purification of their cognate fusion proteins on immobilized glutathione, maltose, phenylarsine oxide, calmodulin, and metal-chelate resins, respectively. FLAG, c-myc, and hemagglutinin (HA) enable immunoaffinity purification of fusion proteins using commercially available monoclonal and polyclonal antibodies that specifically recognize these epitope tags. A fusion protein may also be engineered to contain a proteolytic cleavage site located between the KPP encoding sequence and the heterologous protein sequence, so that KPP may be cleaved away from the heterologous moiety following purification. Methods for fusion protein expression and purification are discussed in Ausubel (1995, supra, ch. 10). A variety of commercially available kits may also be used to facilitate expression and purification of fusion proteins.

[0229] In a further embodiment of the invention, synthesis of radiolabeled KPP may be achieved in vitro using the TNT rabbit reticulocyte lysate or wheat germ extract system (Promega). These systems couple transcription and translation of protein-coding sequences operably associated with the T7, T3, or SP6 promoters. Translation takes place in the presence of a radiolabeled amino acid precursor, for example, ³⁵S-methionine.

[0230] KPP of the present invention or fragments thereof may be used to screen for compounds that specifically bind to KPP. At least one and up to a plurality of test compounds may be screened for specific binding to KPP. Examples of test compounds include antibodies, oligonucleotides, proteins (e.g., receptors), or small molecules.

[0231] In one embodiment, the compound thus identified is closely related to the natural ligand of KPP, e.g., a ligand or fragment thereof, a natural substrate, a structural or functional mimetic, or a natural binding partner. (See, e.g., Coligan, J. E. et al. (1991) Current Protocols in Immunology 1(2): Chapter 5.) Similarly, the compound can be closely related to the natural receptor to which KPP binds, or to at least a fragment of the receptor, e.g., the ligand binding site. In either case, the compound can be rationally designed using known techniques. In one embodiment, screening for these compounds involves producing appropriate cells which express KPP, either as a secreted protein or on the cell membrane. Preferred cells include cells from mammals, yeast, Drosophila, or E. coli. Cells expressing KPP or cell membrane fractions which contain KPP are then contacted with a test compound and binding, stimulation, or inhibition of activity of either KPP or the compound is analyzed.

[0232] An assay may simply test binding of a test compound to the polypeptide, wherein binding is detected by a fluorophore, radioisotope, enzyme conjugate, or other detectable label. For example, the assay may comprise the steps of combining at least one test compound with KPP, either in solution or affixed to a solid support, and detecting the binding of KPP to the compound. Alternatively, the assay may detect or measure binding of a test compound in the presence of a labeled competitor. Additionally, the assay may be carried out using cell-free preparations, chemical libraries, or natural product mixtures, and the test compound(s) may be free in solution or affixed to a solid support.

[0233] KPP of the present invention or fragments thereof may be used to screen for compounds that modulate the activity of KPP. Such compounds may include agonists, antagonists, or partial or inverse agonists. In one embodiment, an assay is performed under conditions permissive for KPP activity, wherein KPP is combined with at least one test compound, and the activity of KPP in the presence of a test compound is compared with the activity of KPP in the absence of the test compound. A change in the activity of KPP in the presence of the test compound is indicative of a compound that modulates the activity of KPP. Alternatively, a test compound is combined with an in vitro or cell-free system comprising KPP under conditions suitable for KPP activity, and the assay is performed. In either of these assays, a test compound which modulates the activity of KPP may do so indirectly and need not come in direct contact with the test compound. At least one and up to a plurality of test compounds may be screened.

[0234] In another embodiment, polynucleotides encoding KPP or their mammalian homologs maybe knocked out in an animal model system using homologous recombination in embryonic stem (ES) cells. Such techniques are well known in the art and are useful for the generation of animal models of human disease. (See, e.g., U.S. Pat. No. 5,175,383 and U.S. Pat. No. 5,767,337.) For example, mouse ES cells, such as the mouse 129/SvJ cell line, are derived from the early mouse embryo and grown in culture. The ES cells are transformed with a vector containing the gene of interest disrupted by a marker gene, e.g., the neomycin phosphotransferase gene (neo; Capecchi, M. R. (1989) Science 244:1288-1292). The vector integrates into the corresponding region of the host genome by homologous recombination. Alternatively, homologous recombination takes place using the Cre-1oxP system to knockout a gene of interest in a tissue, or developmental stage-specific manner (Marth, J. D. (1996) Clin. Invest. 97:1999-2002; Wagner, K. U. et al. (1997) Nucleic Acids Res. 25:4323-4330). Transformed ES cells are identified and microinjected into mouse cell blastocysts such as those from the C57BL/6 mouse strain. The blastocysts are surgically transferred to pseudopregnant dams, and the resulting chimeric progeny are genotyped and bred to produce heterozygous or homozygous strains. Transgenic animals thus generated may be tested with potential therapeutic or toxic agents.

[0235] Polynucleotides encoding KPP may also be manipulated in vitro in ES cells derived from human blastocysts. Human ES cells have the potential to differentiate into at least eight separate cell lineages including endoderm, mesoderm, and ectodermal cell types. These cell lineages differentiate into, for example, neural cells, hematopoietic lineages, and cardiomyocytes (Thomson, J. A. et al. (1998) Science 282:1145-1147).

[0236] Polynucleotides encoding KPP can also be used to create knocking humanized animals (pigs) or transgenic animals (mice or rats) to model human disease. With knockin technology, a region of a polynucleotide encoding KPP is injected into animal ES cells, and the injected sequence integrates into the animal cell genome. Transformed cells are injected into blastulae, and the blastulae are implanted as described above. Transgenic progeny or inbred lines are studied and treated with potential pharmaceutical agents to obtain information on treatment of a human disease. Alternatively, a mammal inbred to overexpress KPP, e.g., by secreting KPP in its milk, may also serve as a convenient source of that protein (Janne, J. et al. (1998) Biotechnol. Annu. Rev. 4:55-74).

[0237] Therapeutics

[0238] Chemical and structural similarity, e.g., in the context of sequences and motifs, exists between regions of KPP and kinases and phosphatases. In addition, examples of tissues expressing KPP can be found in Table 6. Therefore, KPP appears to play a role in cardiovascular diseases, immune system disorders, neurological disorders, disorders affecting growth and development, lipid disorders, cell proliferative disorders, and cancers. In the treatment of disorders associated with increased KPP expression or activity, it is desirable to decrease the expression or activity of KPP. In the treatment of disorders associated with decreased KPP expression or activity, it is desirable to increase the expression or activity of KPP.

[0239] Therefore, in one embodiment, KPP or a fragment or derivative thereof may be administered to a subject to treat or prevent a disorder associated with decreased expression or activity of KPP. Examples of such disorders include, but are not limited to, a cardiovascular disease such as arteriovenous fistula, atherosclerosis, hypertension, vasculitis, Raynaud's disease, aneurysms, arterial dissections, varicose veins, tbrombophlebitis and phlebothrombosis, vascular tumors, and complications of thrombolysis, balloon angioplasty, vascular replacement, and coronary artery bypass graft surgery, congestive heart failure, ischemic heart disease, angina pectoris, myocardial infarction, hypertensive heart disease, degenerative valvular heart disease, calcific aortic valve stenosis, congenitally bicuspid aortic valve, mitral annular calcification, mitral valve prolapse, rheumatic fever and rheumatic heart disease, infective endocarditis, nonbacterial thrombotic endocarditis, endocarditis of systemic lupus erythematosus, carcinoid heart disease, cardiomyopathy, myocarditis, pericarditis, neoplastic heart disease, congenital heart disease, and complications of cardiac transplantation, congenital lung anomalies, atelectasis, pulmonary congestion and edema, pulmonary embolism, pulmonary hemorrhage, pulmonary infarction, pulmonary hypertension, vascular sclerosis, obstructive pulmonary disease, restrictive pulmonary disease, chronic obstructive pulmonary disease, emphysema, chronic bronchitis, bronchial asthma, bronchiectasis, bacterial pneumonia, viral and mycoplasmal pneumonia, lung abscess, pulmonary tuberculosis, diffuse interstitial diseases, pneumoconioses, sarcoidosis, idiopathic pulmonary fibrosis, desquamative interstitial pneumonitis, hypersensitivity pneumonitis, pulmonary eosinophilia bronchiolitis obliterans-organizing pneumonia, diffuse pulmonary hemorrhage syndromes, Goodpasture's syndromes, idiopathic pulmonary hemosiderosis, pulmonary involvement in collagen-vascular disorders, pulmonary alveolar proteinosis, lung tumors, inflammatory and noninflammatory pleural effusions, pneumothorax, pleural tumors, drug-induced lung disease, radiation-induced lung disease, and complications of lung transplantation; an immune system disorder such as acquired immunodeficiency syndrome (AIDS), X-linked agammaglobinemia of Bruton, common variable immunodeficiency (CVI), DiGeorge's syndrome (thymic hypoplasia), thymic dysplasia, isolated IgA deficiency, severe combined immunodeficiency disease (SCID), immunodeficiency with thrombocytopenia and eczema (Wiskott-Aldrich syndrome), Chediak-Higashi syndrome, chronic granulomatous diseases, hereditary angioneurotic edema, immunodeficiency associated with Cushing's disease, Addison's disease, adult respiratory distress syndrome, allergies, ankylosing spondylitis, amyloidosis, anemia, asthma, atherosclerosis, autoimmune hemolytic anemia, autoimmune thyroiditis, autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED), bronchitis, cholecystitis, contact dermatitis, Crohn's disease, atopic dermatitis, dermatomyositis, diabetes mellitus, emphysema, episodic lymphopenia with lymphocytotoxins, erythroblastosis fetalis, erythema nodosum, atrophic gastritis, glomerulonephritis, Goodpasture's syndrome, gout, Graves' disease, Hashimoto's thyroiditis, hypereosinophilia, irritable bowel syndrome, multiple sclerosis, myasthenia gravis, myocardial or pericardial inflammation, osteoarthritis, osteoporosis, pancreatitis, polymyositis, psoriasis, Reiter's syndrome, rheumatoid arthritis, scleroderma, Sjgren's syndrome, systemic anaphylaxis, systemic lupus erythematosus, systemic sclerosis, thrombocytopenic purpura, ulcerative colitis, uveitis, Werner syndrome, complications of cancer, hemodialysis, and extracorporeal circulation, viral, bacterial, fungal, parasitic, protozoal, and helminthic infections, and trauma; a neurological disorder such as epilepsy, ischemic cerebrovascular disease, stroke, cerebral neoplasms, Alzheimer's disease, Pick's disease, Huntington's disease, dementia, Parkinson's disease and other extrapyramidal disorders, amyotrophic lateral sclerosis and other motor neuron disorders, progressive neural muscular atrophy, retinitis pigmentosa, hereditary ataxias, multiple sclerosis and other demyelinating diseases, bacterial and viral meningitis, brain abscess, subdural empyema, epidural abscess, suppurative intracranial thrombophlebitis, myelitis and radiculitis, viral central nervous system disease, prion diseases including kuru, Creutzfeldt-Jakob disease, and Gerstmann-Straussler-Scheinker syndrome, fatal familial insomnia, nutritional and metabolic diseases of the nervous system, neurofibromatosis, tuberous sclerosis, cerebelloretinal hemangioblastomatosis, encephalotrigeminal syndrome, mental retardation and other developmental disorders of the central nervous system including Down syndrome, cerebral palsy, neuroskeletal disorders, autonomic nervous system disorders, cranial nerve disorders, spinal cord diseases, muscular dystrophy and other neuromuscular disorders, peripheral nervous system disorders, dermatomyositis and polymyositis, inherited, metabolic, endocrine, and toxic myopathies, myasthenia gravis, periodic paralysis, mental disorders including mood, anxiety, and schizophrenic disorders, seasonal affective disorder (SAD), akathesia, amnesia, catatonia, diabetic neuropathy, tardive dyskinesia, dystonias, paranoid psychoses, postherpetic neuralgia, Tourette's disorder, progressive supranuclear palsy, corticobasal degeneration, and familial frontotemporal dementia; a disorder affecting growth and development such as actinic keratosis, arteriosclerosis, atherosclerosis, bursitis, cirrhosis, hepatitis, mixed connective tissue disease (MCTD), myelofibrosis, paroxysmal nocturnal hemoglobinuria, polycythemia vera, psoriasis, primary thrombocythemia, renal tubular acidosis, anemia, Cushing's syndrome, achondroplastic dwarfism, Duchenne and Becker muscular dystrophy, epilepsy, gonadal dysgenesis, WAGR syndrome (Wilms' tumor, aniridia, genitourinary abnormalities, and mental retardation), Smith-Magenis syndrome, myelodysplastic syndrome, hereditary mucoepithelial dysplasia, hereditary keratodermas, hereditary neuropathies such as Charcot-Marie-Tooth disease and neurofibromatosis, hypothyroidism, hydrocephalus, seizure disorders such as Syndenham's chorea and cerebral palsy, spina bifida, anencephaly, craniorachischisis, congenital glaucoma, cataract, and sensorineural hearing loss; a lipid disorder such as fatty liver, cholestasis, primary biliary cirrhosis, carnitine deficiency, carnitine palmitoyltransferase deficiency, myoadenylate deaminase deficiency, hypertriglyceridemia, lipid storage disorders such Fabry's disease, Gaucher's disease, Niemann-Pick's disease, metachromatic leukodystrophy, adrenoleukodystrophy, GM₂ gangliosidosis, and ceroid lipofuscinosis, abetalipoproteinemia, Tangier disease, hyperlipoproteinemia, diabetes mellitus, lipodystrophy, lipomatoses, acute panniculitis, disseminated fat necrosis, adiposis dolorosa, lipoid adrenal hyperplasia, minimal change disease, lipomas, atherosclerosis, hypercholesterolemia, hypercholesterolemia with hypertriglyceridemia, primary hypoalphalipoproteinemia, hypothyroidism, renal disease, liver disease, lecithin:cholesterol acyltransferase deficiency, cerebrotendinous xanthomatosis, sitosterolemia, hypocholesterolemia, Tay-Sachs disease, Sandhoff's disease, hyperlipidemia, hyperlipemia, lipid myopathies, and obesity; and a cell proliferative disorder such as actinic keratosis, arteriosclerosis, atherosclerosis, bursitis, cirrhosis, hepatitis, mixed connective tissue disease (MCTD), myelofibrosis, paroxysmal nocturnal hemoglobinuria, polycythemia vera, psoriasis, primary thrombocythemia, and cancers including adenocarcinoma, leukemia, lymphoma, melanoma, myeloma, sarcoma, teratocarcinoma, and, in particular, cancers of the adrenal gland, bladder, bone, bone marrow, brain, breast, cervix, gall bladder, ganglia, gastrointestinal tract, heart, kidney, liver, lung, muscle, ovary, pancreas, parathyroid, penis, prostate, salivary glands, skin, spleen, testis, thymus, thyroid, uterus, leukemias such as multiple myeloma, and lymphomas such as Hodgkin's disease.

[0240] In another embodiment, a vector capable of expressing KPP or a fragment or derivative thereof may be administered to a subject to treat or prevent a disorder associated with decreased expression or activity of KPP including, but not limited to, those described above.

[0241] In a further embodiment, a composition comprising a substantially purified KPP in conjunction with a suitable pharmaceutical carrier may be administered to a subject to treat or prevent a disorder associated with decreased expression or activity of KPP including, but not limited to, those provided above.

[0242] In still another embodiment, an agonist which modulates the activity of KPP may be administered to a subject to treat or prevent a disorder associated with decreased expression or activity of KPP including, but not limited to, those listed above.

[0243] In a further embodiment, an antagonist of KPP maybe administered to a subject to treat or prevent a disorder associated with increased expression or activity of KPP. Examples of such disorders include, but are not limited to, those cardiovascular diseases, immune system disorders, neurological disorders, disorders affecting growth and development, lipid disorders, cell proliferative disorders, and cancers described above. In one aspect, an antibody which specifically binds KPP may be used directly as an antagonist or indirectly as a targeting or delivery mechanism for bringing a pharmaceutical agent to cells or tissues which express KPP.

[0244] In an additional embodiment, a vector expressing the complement of the polynucleotide encoding KPP may be administered to a subject to treat or prevent a disorder associated with increased expression or activity of KPP including, but not limited to, those described above.

[0245] In other embodiments, any of the proteins, antagonists, antibodies, agonists, complementary sequences, or vectors of the invention may be administered in combination with other appropriate therapeutic agents. Selection of the appropriate agents for use in combination therapy may be made by one of ordinary skill in the art, according to conventional pharmaceutical principles. The combination of therapeutic agents may act synergistically to effect the treatment or prevention of the various disorders described above. Using this approach, one may be able to achieve therapeutic efficacy with lower dosages of each agent, thus reducing the potential for adverse side effects.

[0246] An antagonist of KPP may be produced using methods which are generally known in the art. In particular, purified KPP may be used to produce antibodies or to screen libraries of pharmaceutical agents to identify those which specifically bind KPP. Antibodies to KPP may also be generated using methods that are well known in the art. Such antibodies may include, but are not limited to, polyclonal, monoclonal, chimeric, and single chain antibodies, Fab fragments, and fragments produced by a Fab expression library. Neutralizing antibodies (i.e., those which inhibit dimer formation) are generally preferred for therapeutic use. Single chain antibodies (e.g., from camels or llamas) may be potent enzyme inhibitors and may have advantages in the design of peptide mimetics, and in the development of immuno-adsorbents and biosensors (Muyldermans, S. (2001) J. Biotechnol. 74:277-302).

[0247] For the production of antibodies, various hosts including goats, rabbits, rats, mice, camels, dromedaries, llamas, humans, and others may be immunized by injection with KPP or with any fragment or oligopeptide thereof which has immunogenic properties. Depending on the host species, various adjuvants may be used to increase immunological response. Such adjuvants include, but are not limited to, Freund's, mineral gels such as aluminum hydroxide, and surface active substances such as lysolecithin, pluronic polyols, polyanions, peptides, oil emulsions, KLH, and dinitrophenol. Among adjuvants used in humans, BCG (bacilli Calmette-Guerin) and Corynebacterium parvum are especially preferable.

[0248] It is preferred that the oligopeptides, peptides, or fragments used to induce antibodies to KPP have an amino acid sequence consisting of at least about 5 amino acids, and generally will consist of at least about 10 amino acids. It is also preferable that these oligopeptides, peptides, or fragments are identical to a portion of the amino acid sequence of the natural protein. Short stretches of KPP amino acids maybe fused with those of another protein, such as KLH, and antibodies to the chimeric molecule maybe produced.

[0249] Monoclonal antibodies to KPP may be prepared using any technique which provides for the production of antibody molecules by continuous cell lines in culture. These include, but are not limited to, the hybridoma technique, the human B-cell hybridoma technique, and the EBV-hybridoma technique. (See, e.g., Kohler, G. et al. (1975) Nature 256:495-497; Kozbor, D. et al. (1985) J. Immunol. Methods 81:31-42; Cote, R. J. et al. (1983) Proc. Natl. Acad. Sci. USA 80:2026-2030; and Cole, S. P. et al. (1984) Mol. Cell Biol. 62:109-120.)

[0250] In addition, techniques developed for the production of chimeric antibodies, such as the splicing of mouse antibody genes to human antibody genes to obtain a molecule with appropriate antigen specificity and biological activity, can be used. (See, e.g., Morrison, S. L. et al. (1984) Proc. Natl. Acad. Sci. USA 81:6851-6855; Neuberger, M. S. et al. (1984) Nature 312:604-608; and Takeda, S. et al. (1985) Nature 314:452-454.) Alternatively, techniques described for the production of single chain antibodies maybe adapted, using methods known in the art, to produce KPP-specific single chain antibodies. Antibodies with related specificity, but of distinct idiotypic composition, may be generated by chain shuffling from random combinatorial immunoglobulin libraries. (See, e.g., Burton, D. R. (1991) Proc. Natl. Acad. Sci. USA 88:10134-10137.)

[0251] Antibodies may also be produced by inducing in vivo production in the lymphocyte population or by screening immunoglobulin libraries or panels of highly specific binding reagents as disclosed in the literature. (See, e.g., Orlandi, R. et al. (1989) Proc. Natl. Acad. Sci. USA 86:3833-3837; Winter, G. et al. (1991) Nature 349:293-299.)

[0252] Antibody fragments which contain specific binding sites for KPP may also be generated. For example, such fragments include, but are not limited to, F(ab)₂ fragments produced by pepsin digestion of the antibody molecule and Fab fragments generated by reducing the disulfide bridges of the F(ab)₂ fragments. Alternatively, Fab expression libraries maybe constructed to allow rapid and easy identification of monoclonal Fab fragments with the desired specificity. (See, e.g., Huse, W. D. et al. (1989) Science 246:1275-1281.)

[0253] Various immunoassays may be used for screening to identify antibodies having the desired specificity. Numerous protocols for competitive binding or immunoradiometric assays using either polyclonal or monoclonal antibodies with established specificities are well known in the art. Such immunoassays typically involve the measurement of complex formation between KPP and its specific antibody. A two-site, monoclonal-based immunoassay utilizing monoclonal antibodies reactive to two non-interfering KPP epitopes is generally used, but a, competitive binding assay may also be employed (Pound, supra).

[0254] Various methods such as Scatchard analysis in conjunction with radioimmunoassay techniques may be used to assess the affinity of antibodies for KPP. Affinity is expressed as an association constant, K_a, which is defined as the molar concentration of KPP-antibody complex divided by the molar concentrations of free antigen and free antibody under equilibrium conditions. The K_a determined for a preparation of polyclonal antibodies, which are heterogeneous in their affinities for multiple KPP epitopes, represents the average affinity, or avidity, of the antibodies for KPP. The K_a determined for a preparation of monoclonal antibodies, which are monospecific for a particular KPP epitope, represents a true measure of affinity. High-affinity antibody preparations with K_a ranging from about 10⁹ to 10¹² L/mole are preferred for use in immunoassays in which the KPP-antibody complex must withstand rigorous manipulations. Low-affinity antibody preparations with K_a ranging from about 10⁶ to 10⁷ L/mole are preferred for use in immunopurification and similar procedures which ultimately require dissociation of KPP, preferably in active form, from the antibody (Catty, D. (1988) Antibodies. Volume I: A Practical Approach, IRL Press, Washington DC; Liddell, J. E. and A. Cryer (1991) A Practical Guide to Monoclonal Antibodies, John Wiley & Sons, New York N.Y.).

[0255] The titer and avidity of polyclonal antibody preparations may be further evaluated to determine the quality and suitability of such preparations for certain downstream applications. For example, a polyclonal antibody preparation containing at least 1-2 mg specific antibody/ml, preferably 5-10 mg specific antibody/ml, is generally employed in procedures requiring precipitation of KPP-antibody complexes. Procedures for evaluating antibody specificity, titer, and avidity, and guidelines for antibody quality and usage in various applications, are generally available. (See, e.g., Catty, supra, and Coligan et al. supra.)

[0256] In another embodiment of the invention, the polynucleotides encoding KPP, or any fragment or complement thereof, may be used for therapeutic purposes. In one aspect, modifications of gene expression can be achieved by designing complementary sequences or antisense molecules (DNA, RNA, PNA, or modified oligonucleotides) to the coding or regulatory regions of the gene encoding KPP. Such technology is well known in the art, and antisense oligonucleotides or larger fragments can be designed from various locations along the coding or control regions of sequences encoding KPP. (See, e.g., Agrawal, S., ed. (1996) Antisense Therapeutics, Humana Press Inc., Totawa N.J.)

[0257] In therapeutic use, any gene delivery system suitable for introduction of the antisense sequences into appropriate target cells can be used. Antisense sequences can be delivered intracellularly in the form of an expression plasmid which, upon transcription, produces a sequence complementary to at least a portion of the cellular sequence encoding the target protein. (See, e.g., Slater, J. E. et al. (1998) J. Allergy Clin. Immunol. 102(3):469-475; and Scanlon, K. J. et al. (1995) 9(13):1288-1296.) Antisense sequences can also be introduced intracellularly through the use of viral vectors, such as retrovirus and adeno-associated virus vectors. (See, e.g., Miller, A. D. (1990) Blood 76:271; Ausubel, supra; Uckert, W. and W. Walther (1994) Pharmacol. Ther. 63(3):323-347.) Other gene delivery mechanisms include liposome-derived systems, artificial viral envelopes, and other systems known in the art. (See, e.g., Rossi, J. J. (1995) Br. Med. Bull. 51(1):217-225; Boado, R. J. et al. (1998) J. Pharm. Sci. 87(11):1308-1315; and Morris, M. C. et al. (1997) Nucleic Acids Res. 25(14):2730-2736.)

[0258] In another embodiment of the invention, polynucleotides encoding KPP may be used for somatic or germline gene therapy. Gene therapy may be performed to (i) correct a genetic deficiency (e.g., in the cases of severe combined immunodeficiency (SCID)-X1 disease characterized by X-linked inheritance (Cavazzana-Calvo, M. et al. (2000) Science 288:669-672), severe combined immunodeficiency syndrome associated with an inherited adenosine deaminase (ADA) deficiency (Blaese, R. M. et al. (1995) Science 270:475-480; Bordignon, C. et al. (1995) Science 270:470-475), cystic fibrosis (Zabner, J. et al. (1993) Cell 75:207-216; Crystal, R. G. et al. (1995) Hum. Gene Therapy 6:643-666; Crystal, R. G. et al. (1995) Hum. Gene Therapy 6:667-703), thalassamias, familial hypercholesterolemia, and hemophilia resulting from Factor VIII or Factor IX deficiencies (Crystal, R. G. (1995) Science 270:404-410; Verma, I. M. and N. Somia (1997) Nature 389:239-242)), (ii) express a conditionally lethal gene product (e.g., in the case of cancers which result from unregulated cell proliferation), or (iii) express a protein which affords protection against intracellular parasites (e.g., against human retroviruses, such as human immunodeficiency virus (HIV) (Baltimore, D. (1988) Nature 335:395-396; Poeschla, E. et al. (1996) Proc. Natl. Acad. Sci. USA 93:11395-11399), hepatitis B or C virus (HBV, HCV); fungal parasites, such as Candida albicans and Paracoccidioides brasiliensis; and protozoan parasites such as Plasmodium falciparum and Trypanosoma cruzi). In the case where a genetic deficiency in KPP expression or regulation causes disease, the expression of KPP from an appropriate population of transduced cells may alleviate the clinical manifestations caused by the genetic deficiency.

[0259] In a further embodiment of the invention, diseases or disorders caused by deficiencies in KPP are treated by constructing mammalian expression vectors encoding KPP and introducing these vectors by mechanical means into KPP-deficient cells. Mechanical transfer technologies for use with cells in vivo or ex vitro include (i) direct DNA microinjection into individual cells, (ii) ballistic gold particle delivery, (iii) liposome-mediated transfection, (iv) receptor-mediated gene transfer, and (v) the: use of DNA transposons (Morgan, R. A. and W. F. Anderson (1993) Annu. Rev. Biochem. 62:191-217; Ivics, Z. (1997) Cell 91:501-510; Boulay, J -L. and H. Rcipon (1998) Curr. Opin. Biotechnol. 9:445-450).

[0260] Expression vectors that may be effective for the expression of KPP include, but are not limited to, the PCDNA 3.1, EPITAG, PRCCMV2, PREP, PVAX, PCR2-TOPOTA vectors (Invitrogen, Carlsbad Calif.), PCMV-SCRIPT, PCMV-TAG, PEGSH/PERV (Stratagene, La Jolla Calif.), and PTET-OFF, PTET-ON, PTRE2, PTRE2-LUC, PTK-HYG (Clontech, Palo Alto Calif.). KPP may be expressed using (i) a constitutively active promoter, (e.g., from cytomegalovirus (CMV), Rous sarcoma virus (RSV), SV40 virus, thymidine kinase (TK), or -actin genes), (ii) an inducible promoter (e.g., the tetracycline-regulated promoter (Gossen, M. and H. Bujard (1992) Proc. Natl. Acad. Sci. USA 89:5547-5551; Gossen, M. et al. (1995) Science 268:1766-1769; Rossi, F. M. V. and H. M. Blau (1998) Curr. Opin. Biotechnol. 9:451-456), commercially available in the T-REX plasmid (Invitrogen)); the ecdysone-inducible promoter (available in the plasmids PVGRXR and PIND; Invitrogen); the FK506/rapamycin inducible promoter; or the RU486/mifepristone inducible promoter (Rossi, F. M. V. and H. M. Blau, supra)), or (iii) a tissue-specific promoter or the native promoter of the endogenous gene encoding KPP from a normal individual.

[0261] Commercially available liposome transformation kits (e.g., the PERFECT LIPID TRANSFECTION KIT, available from Invitrogen) allow one with ordinary skill in the art to deliver polynucleotides to target cells in culture and require minimal effort to optimize experimental parameters. In the alternative, transformation is performed using the calcium phosphate method (Graham, F. L. and A. J. Eb (1973) Virology 52:456-467), or by electroporation (Neumann, E. et al. (1982) EMBO J. 1:841-845). The introduction of DNA to primary cells requires modification of these standardized mammalian transfection protocols.

[0262] In another embodiment of the invention, diseases or disorders caused by genetic defects with respect to KPP expression are treated by constructing a retrovirus vector consisting of (i) the polynucleotide encoding KPP under the control of an independent promoter or the retrovirus long terminal repeat (LTR) promoter, (ii) appropriate RNA packaging signals, and (iii) a Rev-responsive element (RRE) along with additional retrovirus cis-acting RNA sequences and coding sequences required for efficient vector propagation. Retrovirus vectors (e.g., PFB and PFBNEO) are commercially available (Stratagene) and are based on published data (Riviere, I. et al. (1995) Proc. Natl. Acad. Sci. USA 92:6733-6737), incorporated by reference herein. The vector is propagated in an appropriate vector producing cell line (VPCL) that expresses an envelope gene with a tropism for receptors on the target cells or a promiscuous envelope protein such as VSVg (Armentano, D. et al. (1987) J. Virol. 61:1647-1650; Bender, M. A. et al. (1987) J. Virol. 61:1639-1646; Adam, M. A. and A. D. Miller (1988) J. Virol. 62:3802-3806; Dull, T. et al. (1998) J. Virol. 72:8463-8471; Zufferey, R. et al. (1998) J. Virol. 72:9873-9880). U.S. Pat. No. 5,910,434 to Rigg (Method for obtaining retrovirus packaging cell lines producing high transducing efficiency retroviral supernatant) discloses a method for obtaining retrovirus packaging cell lines and is hereby incorporated by reference. Propagation of retrovirus vectors, transduction of a population of cells (e.g., CD4 T-cells), and the return of transduced cells to a patient are procedures well known to persons skilled in the art of gene therapy and have been well documented (Ranga, U. et al. (1997) J. Virol. 71:7020-7029; Bauer, G. et al. (1997) Blood 89:2259-2267; Bonyhadi, M. L. (1997) J. Virol. 71:4707-4716; Ranga, U. et al. (1998) Proc. Natl. Acad. Sci. USA 95:1201-1206; Su, L. (1997) Blood 89:2283-2290).

[0263] In the alternative, an adenovirus-based gene therapy delivery system is used to deliver polynucleotides encoding KPP to cells which have one or more genetic abnormalities with respect to the expression of KPP. The construction and packaging of adenovirus-based vectors are well known to those with ordinary skill in the art. Replication defective adenovirus vectors have proven to be versatile for importing genes encoding immunoregulatory proteins into intact islets in the pancreas (Csete, M. E. et al. (1995) Transplantation 27:263-268). Potentially useful adenoviral vectors are described in U.S. Pat. No. 5,707,618 to Armentano (Adenovirus vectors for gene therapy), hereby incorporated by reference. For adenoviral vectors, see also Antinozzi, P. A. et al. (1999) Annu. Rev. Nutr. 19:511-544 and Verma, I. M. and N. Somia (1997) Nature 18:389:239-242, both incorporated by reference herein.

[0264] In another alternative, a herpes-based, gene therapy delivery system is used to deliver polynucleotides encoding KPP to target cells which have one or more genetic abnormalities with respect to the expression of KPP. The use of herpes simplex virus (HSV)-based vectors may be especially valuable for introducing KPP to cells of the central nervous system, for which HSV has a tropism. The construction and packaging of herpes-based vectors are well known to those with ordinary skill in the art. A replication-competent herpes simplex virus (HSV) type 1-based vector has been used to deliver a reporter gene to the eyes of primates (Liu, X et al. (1999) Exp. Eye Res. 169:385-395). The construction of a HSV-1 virus vector has also been disclosed in detail in U.S. Pat. No. 5,804,413 to DeLuca (Herpes simplex virus strains for gene transfer), which is hereby incorporated by reference. U.S. Pat. No. 5,804,413 teaches the use of recombinant HSV d92 which consists of a genome containing at least one exogenous gene to be transferred to a cell under the control of the appropriate promoter for purposes including human gene therapy. Also taught by this patent are the construction and use of recombinant HSV strains deleted for ICP4, ICP27 and ICP22. For HSV vectors, see also Goins, W. F. et al. (1999) J. Virol. 73:519-532 and Xu; H et al. (1994) Dev. Biol. 163:152-161, hereby incorporated by reference. The manipulation of cloned herpesvirus sequences, the generation of recombinant virus following the transfectin of multiple plasmids containing different segments of the large herpesvirus genomes, the growth and propagation of herpesvirus, and the infection of cells with herpesvirus are techniques well known to those of ordinary skill in the art.

[0265] In another alternative, an alphavirus (positive, single-stranded RNA virus) vector is used to deliver polynucleotides encoding KPP to target cells. The biology of the prototypic alphavirus, Semliki Forest Virus (SFV), has been studied extensively and gene transfer vectors have been based on the SFV genome (Garoff, H. and K. -J. Li (1998) Curr. Opin. Biotechnol. 9:464-469). During alphavirus RNA replication, a subgenomic RNA is generated that normally encodes the viral capsid proteins. This subgenomic RNA replicates to higher levels than the full length genomic RNA, resulting in the overproduction of capsid proteins relative to the viral proteins with enzymatic activity (e.g., protease and polymerase). Similarly, inserting the coding sequence for KPP into the alphavirus genome in place of the capsid-coding region results in the production of a large number of KPP-coding RNAs and the synthesis of high levels of KPP in vector transduced cells. While alphavirus infection is typically associated with cell lysis within a few days, the ability to establish a persistent infection in hamster normal kidney cells (BHK-21) with a variant of Sindbis virus (SIN) indicates that the lytic replication of alphaviruses can be altered to suit the needs of the gene therapy application (Dryga, S. A. et al. (1997) Virology 228:74-83). The wide host range of alphavirases will allow the introduction of KPP into a variety of cell types. The specific transduction of a subset of cells in a population may require the sorting of cells prior to transduction. The methods of manipulating infectious cDNA clones of alphaviruses, performing alphavirus cDNA and RNA transfections, and performing alphavirus infections, are well known to those with ordinary skill in the art.

[0266] Oligonucleotides derived from the transcription initiation site, e.g., between about positions 10 and 10 from the start site, may also be employed to inhibit gene expression. Similarly, inhibition can be achieved using triple helix base-pairing methodology. Triple helix pairing is useful because it causes inhibition of the ability of the double helix to open sufficiently for the binding of polymerases, transcription factors, or regulatory molecules. Recent therapeutic advances using triplex DNA have been described in the literature. (See, e.g., Gee, J. E. et al. (1994) in Huber, B. E. and B. I. Carr, Molecular and Immunologic Approaches, Futura Publishing, Mt. Kisco N.Y., pp. 163-177.) A complementary sequence or antisense molecule may also be designed to block translation of mRNA by preventing the transcript from binding to ribosomes.

[0267] Ribozymes, enzymatic RNA molecules, may also be used to catalyze the specific cleavage of RNA: The mechanism of ribozyme action involves sequence-specific hybridization of the ribozyme molecule to complementary target RNA, followed by endonucleolytic cleavage. For example, engineered hammerhead motif ribozyme molecules may specifically and efficiently catalyze endonucleolytic cleavage of sequences encoding KPP.

[0268] Specific ribozyme cleavage sites within any potential RNA target are initially identified by scanning the target molecule for ribozyme cleavage sites, including the following sequences: GUA, GUU, and GUC. Once identified, short RNA sequences of between 15 and 20 ribonucleotides, corresponding to the region of the target gene containing the cleavage site, may be evaluated for secondary structural features which may render the oligonucleotide inoperable. The suitability of candidate targets may, also be evaluated by testing accessibility to hybridization with complementary oligonucleotides using ribonuclease protection assays.

[0269] Complementary ribonucleic acid molecules and ribozymes of the invention may be prepared by any method known in the art for the synthesis of nucleic acid molecules. These include techniques for chemically synthesizing oligonucleotides such as solid phase phosphoramidite chemical synthesis. Alternatively, RNA molecules may be generated by in vitro and in vivo transcription of DNA sequences encoding KPP. Such DNA sequences may be incorporated into a wide variety of vectors with suitable RNA polymerase promoters such as T7 or SP6. Alternatively, these cDNA constructs that synthesize complementary RNA, constitutively or inducibly, can be introduced into cell lines, cells, or tissues.

[0270] RNA molecules may be modified to increase intracellular stability and half-life. Possible modifications include, but are not limited to, the addition of flanking sequences at the 5 and/or 3 ends of the molecule, or the use of phosphorothioate or 2O-methyl rather than phosphodiesterase linkages within the backbone of the molecule. This concept is inherent in the production of PNAs and can be extended in all of these molecules by the inclusion of nontraditional bases such as inosine, queosine, and wybutosine, as well as acetyl-, methyl-, thio-, and similarly modified forms of adenine, cytidine, guanine, thymine, and uridine which are not as easily recognized by endogenous endonucleases.

[0271] An additional embodiment of the invention encompasses a method for screening for a compound which is effective in altering expression of a polynucleotide encoding KPP. Compounds which may be effective in altering expression of a specific polynucleotide may include, but are not limited to, oligonucleotides, antisense oligonucleotides, triple helix-forming oligonucleotides, transcription factors and other polypeptide transcriptional regulators, and non-macromolecular chemical entities which are capable of interacting with specific polynucleotide sequences. Effective compounds may alter polynucleotide expression by acting as either inhibitors or promoters of polynucleotide expression. Thus, in the treatment of disorders associated with increased KPP expression or activity, a compound which specifically inhibits expression of the polynucleotide encoding KPP may be therapeutically useful, and in the treatment of disorders associated with decreased KPP expression or activity, a compound which specifically promotes expression of the polynucleotide encoding KPP may be therapeutically useful.

[0272] At least one, and up to a plurality, of test compounds may be screened for effectiveness in altering expression of a specific polynucleotide. A test compound may be obtained by any method commonly known in the art, including chemical modification of a compound known to be effective in altering polynucleotide expression; selection from an existing, commercially-available or proprietary library of naturally-occurring or non-natural chemical compounds; rational design of a compound based on chemical and/or structural properties of the target polynucleotide; and selection from a library of chemical compounds created combinatorially or randomly. A sample comprising a polynucleotide encoding KPP is exposed to at least one test compound thus obtained. The sample may comprise, for example, an intact or permeabilized cell, or an in vitro cell-free or reconstituted biochemical system. Alterations in the expression of a polynucleotide encoding KPP are assayed by any method commonly known in the art. Typically, the expression of a specific nucleotide is detected by hybridization with a probe having a nucleotide sequence complementary to the sequence of the polynucleotide encoding KPP. The amount of hybridization may be quantified, thus forming the basis for a comparison of the expression of the polynucleotide both with and without exposure to one or more test compounds. Detection of a change in the expression of a polynucleotide exposed to a test compound indicates that the test compound is effective in altering the expression of the polynucleotide. A screen for a compound effective in altering expression of a specific polynucleotide can be carried out, for example, using a Schizosaccharomyces pombe gene expression system (Atkins, D. et al. (1999) U.S. Pat. No. 5,932,435; Arndt, G. M. et al. (2000) Nucleic Acids Res. 28:B15) or a human cell line such as HeLa cell (Clarke, M. L. et al. (2000) Biochem. Biophys. Res. Commun. 268:8-13). A particular embodiment of the present invention involves screening a combinatorial library of oligonucleotides (such as deoxyribonucleotides, ribonucleotides, peptide nucleic acids, and modified oligonucleotides) for antisense activity against a specific polynucleotide sequence (Bruice, T. W. et al. (1997) U.S. Pat. No. 5,686,242; Bruice, T. W. et al. (2000) U.S. Pat. No. 6,022,691).

[0273] Many methods for introducing vectors into cells or tissues are available and equally suitable for use in vivo, in vitro, and ex vivo. For ex vivo therapy, vectors may be introduced into stem cells taken from the patient and clonally propagated for autologous transplant back into that same patient. Delivery by transfection, by liposome injections, or by polycationic amino polymers may be achieved using methods which are well known in the art. (See, e.g., Goldman, C. K. et al. (1997) Nat. Biotechnol. 15:462-466.)

[0274] Any of the therapeutic methods described above may be applied to any subject in need of such therapy, including, for example, mammals such as humans, dogs, cats, cows, horses, rabbits, and monkeys.

[0275] An additional embodiment of the invention relates to the administration of a composition which generally comprises an active ingredient formulated with a pharmaceutically acceptable excipient. Excipients may include, for example, sugars, starches, celluloses, gums, and proteins. Various formulations are commonly known and are thoroughly discussed in the latest edition of Remington's Pharmaceutical Sciences (Maack Publishing, Easton Pa.). Such compositions may consist of KPP, antibodies to KPP, and mimetics, agonists, antagonists, or inhibitors of KPP.

[0276] The compositions utilized in this invention may be administered by any number of routes including, but not limited to, oral, intravenous, intramuscular, intra-arterial, intramedullary, intrathecal, intraventricular, pulmonary, transdermal, subcutaneous, intraperitoneal, intranasal, enteral, topical, sublingual, or rectal means.

[0277] Compositions for pulmonary administration maybe prepared in liquid or dry powder form. These compositions are generally aerosolized immediately prior to inhalation by the patient. In the case of small molecules (e.g. traditional low molecular weight organic drugs), aerosol delivery of fast-acting formulations is well-known in the art. In the case of macromolecules (e.g. larger peptides and proteins), recent developments in the field of pulmonary delivery via the alveolar region of the lung have enabled the practical delivery of drugs such as insulin to blood circulation (see, e.g., Patton, J. S. et al., U.S. Pat. No. 5,997,848). Pulmonary delivery has the advantage of administration without needle injection, and obviates the need for potentially toxic penetration enhancers.

[0278] Compositions suitable for use in the invention include compositions wherein the active ingredients are contained in an effective amount to achieve the intended purpose. The determination of an effective dose is well within the capability of those skilled in the art.

[0279] Specialized forms of compositions may be prepared for direct intracellular delivery of macromolecules comprising KPP or fragments thereof. For example, liposome preparations containing a cell-impermeable macromolecule may promote cell fusion and intracellular delivery of the macromolecule. Alternatively, KPP or a fragment thereof may be joined to a short cationic N-terminal portion from the HIV Tat-1 protein. Fusion proteins thus generated have been found to transduce into the cells of all tissues, including the brain, in a mouse model system (Schwarze, S. R. et al. (1999) Science 285:1569-1572).

[0280] For any compound, the therapeutically effective dose can be estimated initially either in cell culture assays, e.g., of neoplastic cells, or in animal models such as mice, rats, rabbits, dogs, monkeys, or pigs. An animal model may also be used to determine the appropriate concentration range and route of administration. Such information can then be used to determine useful doses and routes for administration in humans.

[0281] A therapeutically effective dose refers to that amount of active ingredient, for example KPP or fragments thereof, antibodies of KPP, and agonists, antagonists or inhibitors of KPP, which ameliorates the symptoms or condition. Therapeutic efficacy and toxicity may be determined by standard pharmaceutical procedures in cell cultures or with experimental animals, such as by calculating the ED₅₀ (the dose therapeutically effective in 50% of the population) or LD₅₀ (the dose lethal to 50% of the population) statistics. The dose ratio of toxic to therapeutic effects is the therapeutic index, which can be expressed as the LD₅₀ED₅₀ ratio. Compositions which exhibit large therapeutic indices are preferred. The data obtained from cell culture assays and animal studies are used to formulate a range of dosage for human use. The dosage contained in such compositions is preferably within a range of circulating concentrations that includes the ED₅₀ with little or no toxicity. The dosage varies within this range depending upon the dosage form employed, the sensitivity of the patient, and the route of administration.

[0282] The exact dosage will be determined by the practitioner, in light of factors related to the subject requiring treatment. Dosage and administration are adjusted to provide sufficient levels of the active moiety or to maintain the desired effect. Factors which may be taken into account include the severity of the disease state, the general health of the subject, the age, weight, and gender of the subject, time and frequency of administration, drug combination(s), reaction sensitivities, and response to therapy. Long-acting compositions may be administered every 3 to 4 days, every week, or biweekly depending on the half-life and clearance rate of the particular formulation.

[0283] Normal dosage amounts may vary from about 0.1 g to 100,000 g, up to a total dose of about 1 gram, depending upon the route of administration. Guidance as to particular dosages and methods of delivery is provided in the literature and generally available to practitioners in the art. Those skilled in the art will employ different formulations for nucleotides than for proteins or their inhibitors. Similarly, delivery of polynucleotides or polypeptides will be specific to particular cells, conditions, locations, etc.

[0284] Diagnostics

[0285] In another embodiment, antibodies which specifically bind KPP may be used for the diagnosis of disorders characterized by expression of KPP, or in assays to monitor patients being treated with KPP or agonists, antagonists, or inhibitors of KPP. Antibodies useful for diagnostic purposes may be prepared in the same manner as described above for therapeutics. Diagnostic assays for KPP include: methods which utilize the antibody and a label to detect KPP in human body fluids or in extracts of cells or tissues. The antibodies may be used with or without modification, and may be labeled by covalent or non-covalent attachment of a reporter molecule. A wide variety of reporter molecules, several of which are described above, are known in the art and may be used.

[0286] A variety of protocols for measuring KPP, including ELISAs, RIAs, and FACS, are known in the art and provide a basis for diagnosing altered or abnormal levels of KPP expression. Normal or standard values for KPP expression are established by combining body fluids or cell extracts taken from normal mammalian subjects, for example, human subjects, with antibodies to KPP under conditions suitable for complex formation. The amount of standard complex formation may be quantitated by various methods, such as photometric means. Quantities of KPP expressed in subject, control, and disease samples from biopsied tissues are compared with the standard values. Deviation between standard and subject values establishes the parameters for diagnosing disease.

[0287] In another embodiment of the invention, the polynucleotides encoding KPP maybe used for diagnostic purposes. The polynucleotides which may be used include oligonucleotide sequences, complementary RNA and DNA molecules, and PNAs. The polynucleotides may be used to detect and quantify gene expression in biopsied tissues in which expression of KPP may be correlated with disease. The diagnostic assay may be used to determine absence, presence, and excess expression of KPP, and to monitor regulation of KPP levels during therapeutic intervention.

[0288] In one aspect, hybridization with PCR probes which are capable of detecting polynucleotide sequences, including genomic sequences, encoding KPP or closely related molecules may be used to identify nucleic acid sequences which encode KPP. The specificity of the probe, whether it is made from a highly specific region, e.g., the 5 regulatory region, or from a less specific region, e.g., a conserved motif, and the stringency of the hybridization or amplification will determine whether the probe identifies only naturally occurring sequences encoding KPP, allelic variants, or related sequences.

[0289] Probes may also be used for the detection of related sequences, and may have at least 50% sequence identity to any of the KPP encoding sequences. The hybridization probes of the subject invention may be DNA or RNA and maybe derived from the sequence of SEQ ID NO:16-30 or from genomic sequences including promoters, enhancers, and introns of the KPP gene.

[0290] Means for producing specific hybridization probes for DNAs encoding KPP include the cloning of polynucleotide sequences encoding KPP or KPP derivatives into vectors for the production of mRNA probes. Such vectors are known in the art, are commercially available, and may be used to synthesize RNA probes in vitro by means of the addition of the appropriate RNA polymerases and the appropriate labeled nucleotides. Hybridization probes may be labeled by a variety of reporter groups, for example, by radionuclides such as ³²P or ³⁵S, or by enzymatic labels, such as alkaline phosphatase coupled to the probe via avidin/biotin coupling systems, and the like.

[0291] Polynucleotide sequences encoding KPP may be used for the diagnosis of disorders associated with expression of KPP. Examples of such disorders include, but are not limited to,a cardiovascular disease such as arteriovenous fistula, atherosclerosis, hypertension, vasculitis, Raynaud's disease, aneurysms, arterial dissections, varicose veins, thrombophlebitis and phlebothrombosis, vascular tumors, and complications of thrombolysis, balloon angioplasty, vascular replacement, and coronary artery bypass graft surgery, congestive heart failure, ischemic heart disease, angina pectoris, myocardial infarction, hypertensive heart disease, degenerative valvular heart disease, calcific aortic valve stenosis, congenitally bicuspid aortic valve, mitral annular calcification, mitral valve prolapse, rheumatic fever and rheumatic heart disease, infective endocarditis, nonbacterial thrombotic endocarditis, endocarditis of systemic lupus erythematosus, carcinoid heart disease, cardiomyopathy, myocarditis, pericarditis, neoplastic heart disease, congenital heart disease, and complications of cardiac transplantation, congenital lung anomalies, atelectasis, pulmonary congestion and edema, pulmonary embolism, pulmonary hemorrhage, pulmonary infarction, pulmonary hypertension, vascular sclerosis, obstructive pulmonary disease, restrictive pulmonary disease, chronic obstructive pulmonary disease, emphysema, chronic bronchitis, bronchial asthma, bronchiectasis, bacterial pneumonia, viral and mycoplasmal pneumonia, lung abscess, pulmonary tuberculosis, diffuse interstitial diseases, pneumoconioses, sarcoidosis, idiopathic pulmonary fibrosis, desquamative interstitial pneumonitis, hypersensitivity pneumonitis, pulmonary eosinophilia bronchiolitis obliterans-organizing pneumonia, diffuse pulmonary hemorrhage syndromes, Goodpasture's syndromes, idiopathic pulmonary hemosiderosis, pulmonary involvement in collagen-vascular disorders, pulmonary alveolar proteinosis, lung tumors, inflammatory and noninflammatory pleural effusions, pneumothorax, pleural tumors, drug-induced lung disease, radiation-induced lung disease, and complications of lung transplantation; an immune system disorder such as acquired immunodeficiency syndrome (AIDS), X-linked agammaglobinemia of Bruton, common variable immunodeficiency (CVI), DiGeorge's syndrome (thymic hypoplasia), thymic dysplasia, isolated IgA deficiency, severe combined immunodeficiency disease (SCID), immunodeficiency with thrombocytopenia and eczema (Wiskott-Aldrich syndrome), Chediak-Higashi syndrome, chronic granulomatous diseases, hereditary. angioneurotic edema, immunodeficiency associated with Cushing's disease, Addison's disease, adult respiratory distress syndrome, allergies, ankylosing spondylitis, amyloidosis, anemia, asthma, atherosclerosis, autoimmune hemolytic anemia, autoimmune thyroiditis, autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED), bronchitis, cholecystitis, contact dermatitis, Crohn's disease, atopic dermatitis, dermatomyositis, diabetes mellitus, emphysema, episodic lymphopenia with lymphocytotoxins, erythroblastosis fetalis, erythema nodosum, atrophic gastritis, glomerulonephritis, Goodpasture's syndrome, gout, Graves' disease, Hashimoto's thyroiditis, hypereosinophilia, irritable bowel syndrome, multiple sclerosis, myasthenia gravis, myocardial or pericardial inflammation, osteoarthritis, osteoporosis, pancreatitis, polymyositis, psoriasis, Reiter's syndrome, rheumatoid arthritis, scleroderma, Sjgren's syndrome, systemic anaphylaxis, systemic lupus erythematosus, systemic sclerosis, thrombocytopenic purpura, ulcerative colitis, uveitis, Werner syndrome, complications of cancer, hemodialysis, and extracorporeal circulation, viral, bacterial, fungal, parasitic, protozoal, and helminthic infections, and trauma; a neurological disorder such as epilepsy, ischemic cerebrovascular disease, stroke, cerebral neoplasms, Alzheimer's disease, Pick's disease, Huntington's disease, dementia, Parkinson's disease and other extrapyramidal disorders, amyotrophic lateral sclerosis and other motor neuron disorders, progressive neural muscular atrophy, retinitis pigmentosa, hereditary ataxias, multiple sclerosis and other demyelinating diseases, bacterial and viral meningitis, brain abscess, subdural empyema, epidural abscess, suppurative intracranial thrombophlebitis, myelitis and radiculitis, viral central nervous system disease, prion diseases including kuru, Creutzfeldt-Jakob disease, and Gerstmann-Straussler-Scheinker syndrome, fatal familial insomnia, nutritional and metabolic diseases of the nervous system, neurofibromatosis, tuberous sclerosis, cerebelloretinal hemangioblastomatosis, encephalotrigeminal syndrome, mental retardation and other developmental disorders of the central nervous system including Down syndrome, cerebral palsy, neuroskeletal disorders, autonomic nervous system disorders, cranial nerve disorders, spinal cord diseases, muscular dystrophy and other neuromuscular disorders, peripheral nervous system disorders, dermatomyositis and polymyositis, inherited, metabolic, endocrine, and toxic myopathies, myasthenia gravis, periodic paralysis, mental disorders including mood, anxiety, and schizophrenic disorders, seasonal affective disorder (SAD), akathesia, amnesia, catatonia, diabetic neuropathy, tardive dyskinesia, dystonias, paranoid psychoses, postherpetic neuralgia, Tourette's disorder, progressive supranuclear palsy, corticobasal degeneration, and familial frontotemporal dementia; a disorder affecting growth and development such as actinic keratosis, arteriosclerosis, atherosclerosis, bursitis, cirrhosis, hepatitis, mixed connective tissue disease (MCTD), myelofibrosis, paroxysmal nocturnal hemoglobinuria, polycythemia vera, psoriasis, primary thrombocythemia, renal tubular acidosis, anemia, Cushing's syndrome, achondroplastic dwarfism, Duchenne and Becker muscular dystrophy, epilepsy, gonadal dysgenesis, WAGR syndrome (Wilms' tumor, aniridia, genitourinary abnormalities, and mental retardation), Smith-Magenis syndrome, myelodysplastic syndrome, hereditary mucoepithelial dysplasia, hereditary keratodermas, hereditary neuropathies such as Charcot-Marie-Tooth disease and neurofibromatosis, hypothyroidism, hydrocephalus, seizure disorders such as Syndenham's chorea and cerebral palsy, spina bifida, anencephaly, craniorachischisis, congenital glaucoma, cataract, and sensorineural hearing loss; a lipid disorder such as fatty liver, cholestasis, primary biliary cirrhosis, carnitine deficiency, carnitine palmitoyltransferase deficiency, myoadenylate deaminase deficiency, hypertriglyceridemia, lipid storage disorders such Fabry's disease, Gaucher's disease, Niemann-Pick's disease, metachromatic leukodystrophy, adrenoleukodystrophy, GM gangliosidosis, and ceroid lipofuscinosis, abetalipoproteinemia, Tangier disease, hyperlipoproteinemia, diabetes mellitus, lipodystrophy, lipomatoses, acute panniculitis, disseminated fat necrosis, adiposis dolorosa, lipoid adrenal hyperplasia, minimal change disease, lipomas, atherosclerosis, hypercholesterolemia, hypercholesterolemia with hypertriglyceridemia, primary hypoalphalipoproteinemia, hypothyroidism, renal disease, liver disease, lecithin:cholesterol acyltransferase deficiency, cerebrotendinous xanthomatosis, sitosterolemia, hypocholesterolemia, Tay-Sachs disease, Sandhoff's disease, hyperlipidemia, hyperlipemia, lipid myopathies, and obesity; and a cell proliferative disorder such as actinic keratosis, arteriosclerosis, atherosclerosis, bursitis, cirrhosis, hepatitis, mixed connective tissue disease (MCTD), myelofibrosis, paroxysmal nocturnal hemoglobinuria, polycythemia vera, psoriasis, primary thrombocythemia, and cancers including adenocarcinoma, leukemia, lymphoma, melanoma, myeloma, sarcoma, teratocarcinoma, and, in particular, cancers of the adrenal gland, bladder, bone, bone marrow, brain, breast, cervix, gall bladder, ganglia, gastrointestinal tract, heart, kidney, liver, lung, muscle, ovary, pancreas, parathyroid, penis, prostate, salivary glands, skin, spleen, testis, thymus, thyroid, uterus, leukemias such as multiple myeloma, and lymphomas such as Hodgkin's disease. The polynucleotide sequences encoding KPP may be used in Southern or northern analysis, dot blot, or other membrane-based technologies; in PCR technologies; in dipstick, pin, and multiformat ELISA-like assays; and in microarrays utilizing fluids or tissues from patients to detect altered KPP expression. Such qualitative or quantitative methods are well known in the art.

[0292] In a particular aspect, the nucleotide sequences encoding KPP may be useful in assays that detect the presence of associated disorders, particularly those mentioned above. The nucleotide sequences encoding KPP maybe labeled by standard methods and added to a fluid or tissue sample from a patient under conditions suitable for the formation of hybridization complexes. After a suitable incubation period, the sample is washed and the signal is quantified and compared with a standard value. If the amount of signal in the patient sample is significantly altered in comparison to, a control sample then the presence of altered levels of nucleotide sequences encoding KPP in the sample indicates the presence of the associated disorder. Such assays may also be used to evaluate the efficacy of a particular, therapeutic treatment regimen in animal studies, in clinical trials, or to monitor the treatment of an individual patient.

[0293] In order to provide a basis for the diagnosis of a disorder associated with expression of KPP, a normal or standard profile for expression is established. This may be accomplished by combining body fluids or cell extracts taken from normal subjects, either animal or human, with a sequence, or a fragment thereof, encoding KPP, under conditions suitable for hybridization or amplification. Standard hybridization may be quantified by comparing the values obtained from normal subjects with values from an experiment in which a known amount of a substantially purified polynucleotide is used. Standard values obtained in this manner may be compared with values obtained from samples from patients who are symptomatic for a disorder. Deviation from standard values is used to establish the presence of a disorder.

[0294] Once the presence of a disorder is established and a treatment protocol is initiated, hybridization assays may be repeated on a regular basis to determine if the level of expression in the patient begins to approximate that which is observed in the normal subject. The results obtained from successive assays may be used to show the efficacy of treatment over a period ranging from several days to months.

[0295] With respect to cancer, the presence of an abnormal amount of transcript (either under- or overexpressed) in biopsied tissue from an individual may indicate a predisposition for the development of the disease, or may provide a means for detecting the disease prior to the appearance of actual clinical symptoms. A more definitive diagnosis of this type may allow health professionals to employ preventative measures or aggressive treatment earlier thereby preventing the development or further progression of the cancer.

[0296] Additional diagnostic uses for oligonucleotides designed from the sequences encoding KPP may involve the use of PCR. These oligomers may be chemically synthesized, generated enzymatically, or produced in vitro. Oligomers will preferably contain a fragment of a polynucleotide encoding KPP, or a fragment of a polynucleotide complementary to the polynucleotide encoding KPP, and will be employed under optimized conditions for identification of a specific gene or condition. Oligomers may also be employed under less stringent conditions for detection or quantification of closely related DNA or RNA sequences.

[0297] In a particular aspect, oligonucleotide primers derived from the polynucleotide sequences encoding KPP maybe used to detect single nucleotide polymorphisms (SNPs). SNPs are substitutions, insertions and deletions that are a frequent cause of inherited or acquired genetic disease in humans. Methods of SNP detection include, but are not limited to, single-stranded conformation polymorphism (SSCP) and fluorescent SSCP (fSSCP) methods. In SSCP, oligonucleotide primers derived from the polynucleotide sequences encoding KPP are used to amplify DNA using the polymerase chain reaction (PCR). The DNA may be derived, for example, from diseased or normal tissue, biopsy samples, bodily fluids, and the like. SNPs in the DNA cause differences in the secondary and tertiary structures of PCR products in single-stranded form, and these differences are detectable using gel electrophoresis in non-denaturing gels. In fSCCP, the oligonucleotide primers are fluorescently labeled, which allows detection of the amplimers in high-throughput equipment such as DNA sequencing machines. Additionally, sequence database analysis methods, termed in silico SNP (isSNP), are capable of identifying polymorphisms by comparing the sequence of individual overlapping DNA fragments which assemble into a common consensus sequence. These computer-based methods filter out sequence variations due to laboratory preparation of DNA and sequencing errors using statistical models and automated analyses of DNA sequence chromatograms. In the alternative, SNPs may be detected and characterized by mass spectrometry using, for example, the high throughput MASSARRAY system (Sequenom, Inc., San Diego Calif.).

[0298] SNPs may be used to study the genetic basis of human disease. For example, at least 16 common SNPs have been associated with non-insulin-dependent diabetes mellitus. SNPs are also useful for examining differences in disease outcomes in monogenic disorders, such as cystic fibrosis, sickle cell anemia, or chronic granulomatous disease. For example, variants in the mannose-binding lectin, MBL2, have been shown to be correlated with deleterious pulmonary outcomes in cystic fibrosis. SNPs also have utility in pharmacogenomics, the identification of genetic variants that influence a patient's response to a drug, such as life-threatening toxicity. For example, a variation in N-acetyl transferase is associated with a high incidence of peripheral neuropathy in response to the anti-tuberculosis drug isoniazid, while a variation in the core promoter of the ALOX5 gene results in diminished clinical response to treatment with an anti-asthma drug that targets the 5-lipoxygenase pathway. Analysis of the distribution of SNPs in different populations is useful for investigating genetic drift, mutation, recombination, and selection, as well as for tracing the origins of populations and their migrations. (Taylor, J. G. et al. (2001) Trends Mol. Med. 7:507-512; Kwok, P. -Y. and Z. Gu (1999) Mol. Med. Today 5:538-543;.Nowotny, P. et al. (2001) Curr. Opin. Neurobiol. 11:637-641.)

[0299] Methods which may also be used to quantity the expression of KPP include radiolabeling or biotinylating nucldotides, coamplification of a control nucleic acid, and interpolating results from standard curves. (See, e.g., Melby, P. C. et al. (1993) J. Immunol. Methods 159:235-244; Duplaa, C. et al. (1993) Anal. Biochem. 212:229-236.) The speed of quantitation of multiple samples maybe accelerated by running the assay in a high-throughput format where the oligomer or polynucleotide of interest is presented in various dilutions and a spectrophotometric or colorimetric response gives rapid quantitation.

[0300] In further embodiments, oligonucleotides or longer fragments derived from any of the polynucleotide sequences described herein may be used as elements on a microarray. The microarray can be used in transcript imaging techniques which monitor the relative expression levels of large numbers of genes simultaneously as described below. The microarray may also be used to identify genetic variants, mutations, and polymorphisms. This information may be used to determine gene function, to understand the genetic basis of a disorder, to diagnose a disorder, to monitor progression/regression of disease as a function of gene expression, and to develop and monitor the activities of therapeutic agents in the treatment of disease. In particular, this information may be used to develop a pharmacogenomic profile of a patient in order to select the most appropriate and effective treatment regimen for that patient. For example, therapeutic agents which are highly effective and display the fewest side effects may be selected for a patient based on his/her pharmacogenomic profile.

[0301] In another embodiment, KPP, fragments of KPP, or antibodies specific for KPP may be used as elements on a microarray. The microarray may be used to monitor or measure protein-protein interactions, drug-target interactions, and gene expression profiles, as described above.

[0302] A particular embodiment relates to the use of the polynucleotides of the present invention to generate a transcript image of a tissue or cell type. A transcript image represents the global pattern of gene expression by a particular tissue or cell type. Global gene expression patterns are analyzed by quantifying the number of expressed genes and their relative abundance under given conditions and at a given time. (See Seilhamer et al., Comparative Gene Transcript Analysis, U.S. Pat. No. 5,840,484, expressly incorporated by reference herein.) Thus a transcript image may be generated by hybridizing the polynucleotides of the present invention or their complements to the totality of transcripts or reverse transcripts of a particular tissue or cell type. In one embodiment, the hybridization takes place in high-throughput format, wherein the polynucleotides of the present invention or their complements comprise a subset of a plurality of elements on a microarray. The resultant transcript image would provide a profile of gene activity.

[0303] Transcript images may be generated using transcripts isolated from tissues, cell lines, biopsies, or other biological samples. The transcript image may thus reflect gene expression in vivo, as in the case of a tissue or biopsy sample, or in vitro, as in the case of a cell line.

[0304] Transcript images which profile the expression of the polynucleotides of the present invention may also be used in conjunction with in vitro model systems and preclinical evaluation of pharmaceuticals, as well as toxicological testing of industrial and naturally-occurring environmental compounds. All compounds induce characteristic gene expression patterns, frequently termed molecular fingerprints or toxicant signatures, which are indicative of mechanisms of action and toxicity (Nuwaysir, E. F. et al. (1999) Mol. Carcinog. 24:153-159; Steiner, S. and N. L. Anderson (2000) Toxicol. Lett. 112-113:467-471, expressly incorporated by reference herein). If a test compound has a signature similar to that of a compound with known toxicity, it is likely to share those toxic properties. These fingerprints or signatures are most useful and refined when they contain expression information from a large number of genes and gene families. Ideally, a genome-wide measurement of expression provides the highest quality signature. Even genes whose expression is not altered by any tested compounds are important as well, as the levels of expression of these genes are used to normalize the rest of the expression data. The normalization procedure is useful for comparison of expression data after treatment with different compounds. While the assignment of gene function to elements of a toxicant signature aids in interpretation of toxicity mechanisms, knowledge of gene function is not necessary for the statistical matching of signatures which leads to prediction of toxicity. (See, for example, Press Release 00-02 from the National Institute of Environmental Health Sciences, released Feb. 29, 2000, available at http://www.niehs.nih.gov/oc/news/toxchip.htm.) Therefore, it is important and desirable in toxicological screening using toxicant signatures to include all expressed gene sequences.

[0305] In one embodiment, the toxicity of a test compound is assessed by treating a biological sample containing nucleic acids with the test compound. Nucleic acids that are expressed in the treated biological sample are hybridized with one or more probes specific to the polynucleotides of the present invention, so that transcript levels corresponding to the polynucleotides of the present invention may be lo quantified. The transcript levels in the treated biological sample are compared with levels in an untreated biological sample. Differences in the transcript levels between the two samples are indicative of a toxic response caused by the test compound in the treated sample.

[0306] Another particular embodiment relates to the use of the polypeptide sequences of the present invention to analyze the proteome of a tissue or cell type. The term proteome refers to the global pattern of protein expression in a particular tissue or cell type. Each protein component of a proteome can be subjected individually to further analysis. Proteome expression patterns, or profiles, are analyzed by quantifying the number of expressed proteins and their relative abundance under given conditions and at a given time. A profile of a cell's proteome may thus be generated by separating and analyzing the polypeptides of a particular tissue or cell type. In one embodiment, the separation is achieved using two-dimensional gel electrophoresis, in which proteins from a sample are separated by isoelectric focusing in the first dimension, and then according to molecular weight by sodium dodecyl sulfate slab gel electrophoresis in the second dimension (Steiner and Anderson, supra). The proteins are visualized in the gel as discrete and uniquely positioned spots, typically by staining the gel with an agent such as Coomassie Blue or silver or fluorescent stains. The optical density of each protein spot is generally proportional to the level of the protein in the sample. The optical densities of equivalently positioned protein spots from different samples, for example, from biological samples either treated or untreated with a test compound or therapeutic agent, are compared to identify any changes in protein spot density related to the treatment. The proteins in the spots are partially sequenced using, for example, standard methods employing chemical or enzymatic cleavage followed by mass spectrometry. The identity of the protein in a spot may be determined by comparing its partial sequence, preferably of at least 5 contiguous amino acid residues, to the polypeptide sequences of the present invention. In some cases, further sequence data may be obtained for definitive protein identification.

[0307] A proteomic profile may also be generated using antibodies specific for KPP to quantify the levels of KPP expression. In one embodiment, the antibodies are used as elements on a microarray, and protein expression levels are quantified by exposing the microarray to the sample and detecting the levels of protein bound to each array element (Luekig, A. et al. (1999) Anal. Biochem. 270:103-111; Mendoze, L. G. et al. (1999) Biotechniques 27:778-788). Detection maybe performed by a variety of methods known in the art, for example, by reacting the proteins in the sample with a thiol- or amino-reactive fluorescent compound and detecting the amount of fluorescence bound at each array element.

[0308] Toxicant signatures at the proteome level are also useful for toxicological screening, and should be analyzed in parallel with toxicant signatures at the transcript level. There is a poor correlation between transcript and protein abundances for some proteins in some tissues (Anderson, N. L. and J. Seilhamer (1997) Electrophoresis 18:533-537), so proteome toxicant signatures may be useful in the analysis of compounds which do not significantly affect the transcript image, but which alter the proteomic profile. In addition, the analysis of transcripts in body fluids is difficult, due to rapid degradation of mRNA, so proteomic profiling may be more reliable and informative in such cases.

[0309] In another embodiment, the toxicity of a test compound is assessed by treating a biological sample containing proteins with the test compound. Proteins that are expressed in the treated biological sample are separated so that the amount of each protein can be quantified. The amount of each protein is compared to the amount of the corresponding protein in an untreated biological sample. A difference in the amount of protein between the two samples is indicative of a toxic response to the test compound in the treated sample. Individual proteins are identified by sequencing the amino acid residues of the individual proteins and comparing these partial sequences to the polypeptides of the present invention.

[0310] In another embodiment, the toxicity of a test compound is assessed by treating a biological sample containing proteins with the test compound. Proteins from the biological sample are incubated with antibodies specific to the polypeptides of the present invention. The amount of protein recognized by the antibodies is quantified. The amount of protein in the treated biological sample is compared with the amount in an untreated biological sample. A difference in the amount of protein between the two samples is indicative of a toxic response to the test compound in the treated sample.

[0311] Microarrays may be prepared, used, and analyzed using methods known in the art. (See, e.g., Brennan, T. M. et al. (1995) U.S. Pat. No. 5,474,796; Schena, M. et al. (1996) Proc. Natl. Acad. Sci. USA 93:10614-10619; Baldeschweiler et al. (1995) PCT application W095/251116; Shalon, D. et al. (1995) PCT application WO95/35505; Heller, R. A. et al. (1997) Proc. Natl. Acad. Sci. USA 94:2150-2155; and Heller, M. J. et al. (1997) U.S. Pat. No. 5,605,662.) Various types of microarrays are well known and thoroughly described in DNA Microarrays: A Practical Approach, M. Schena, ed. (1999) Oxford University Press, London, hereby expressly incorporated by reference.

[0312] In another embodiment of the invention, nucleic acid sequences encoding KPP maybe used to generate hybridization probes useful in mapping the naturally occurring genomic sequence. Either coding or noncoding sequences maybe used, and in some instances, noncoding sequences maybe preferable over coding sequences. For example, conservation of a coding sequence among members of a multi-gene family may potentially cause undesired cross hybridization during chromosomal mapping. The sequences maybe mapped to a particular chromosome, to a specific region of a chromosome, or to artificial chromosome constructions, e.g., human artificial chromosomes (HACs), yeast artificial chromosomes (YACs), bacterial artificial chromosomes (HACs), bacterial P1 constructions, or single chromosome cDNA libraries. (See, e.g., Harrington, J. J. et al. (1997) Nat. Genet. 15:345-355; Price, C. M. (1993) Blood Rev. 7:127-134; and Trask, B. J. (1991) Trends Genet. 7:149-154.) Once-mapped, the nucleic acid sequences of the invention maybe used to develop genetic linkage maps, for example, which correlate the inheritance of a disease state with the inheritance of a particular chromosome region or restriction fragment length polymorphism (RFLP). (See, for example, Lander, E. S. and D. Botstein (1986) Proc. Natl. Acad. Sci. USA 83:7353-7357.)

[0313] Fluorescent in situ hybridization (FISH) may be correlated with other physical and genetic map data. (See, e.g., Heinz-Ulrich, et al. (1995) in Meyers, supra, pp. 965-968.) Examples of genetic map data can be found in various scientific journals or at the Online Mendelian Inheritance in Man (OMIM) World Wide Web site. Correlation between the location of the gene encoding KPP on a physical map and a specific disorder, or a predisposition to a specific disorder, may help define the region of DNA associated with that disorder and thus may further positional cloning efforts.

[0314] In situ hybridization of chromosomal preparations and physical mapping techniques, such as linkage analysis using established chromosomal markers, may be used for extending genetic maps. Often the placement of a gene on the chromosome of another mammalian species, such as mouse, may reveal associated markers even if the exact chromosomal locus is not known. This information is valuable to investigators searching for disease genes using positional cloning or other gene discovery techniques. Once the gene or genes responsible for a disease or syndrome have been crudely localized by genetic linkage to a particular genomic region, e.g., ataxia-telangiectasia to 11q22-23, any sequences mapping to that area may represent associated or regulatory genes for further investigation. (See, e.g., Gatti, R. A. et al. (1988) Nature 336:577-580.) The nucleotide sequence of the instant invention may also be used to detect differences in the chromosomal location due to translocation, inversion, etc., among normal, carrier, or affected individuals.

[0315] In another embodiment of the invention, KPP, its catalytic or immunogenic fragments, or oligopeptides thereof can be used for screening libraries of compounds in any of a variety of drug screening techniques. The fragment employed in such screening may be free in solution, affixed to a solid support, borne on a cell surface, or located intracellularly. The formation of binding complexes between KPP and the agent being tested may be measured.

[0316] Another technique for drug screening provides for high throughput screening of compounds having suitable binding affinity to the protein of interest. (See, e.g., Geysen, et al. (1984) PCT application WO84/03564.) In this method, large numbers of different small test compounds are synthesized on a solid substrate. The test compounds are reacted with KPP, or fragments thereof, and washed. Bound KPP is then detected by methods well known in the art. Purified KPP can also be coated directly onto plates for use in the aforementioned drug screening techniques. Alternatively, non-neutralizing antibodies can be used to capture the peptide and immobilize it on a solid support.

[0317] In another embodiment, one may use competitive drug screening assays in which neutralizing antibodies capable of binding KPP specifically compete with a test compound for binding KPP. In this manner, antibodies can be used to detect the presence of any peptide which shares one or more antigenic determinants with KPP.

[0318] In additional embodiments, the nucleotide sequences which encode KPP may be used in any molecular biology techniques that have yet to be developed, provided the new techniques rely on properties of nucleotide sequences that are currently known, including, but not limited to, such properties as the triplet genetic code and specific base pair interactions.

[0319] Without further elaboration, it is believed that one skilled in the art can, using the preceding description, utilize the present invention to its fullest extent. The following embodiments are, therefore, to be construed as merely illustrative, and not limitative of the remainder of the disclosure in any way whatsoever.

[0320] The disclosures of all patents, applications and publications, mentioned above and below, including U.S. Ser. No. 60/282,119, U.S. Ser. No. 60/283,588, U.S. Ser. No. 60/283,759, U.S. Ser. No. 60/285,589, U.S. Ser. No. 60/287,037, U.S. Ser. No. 60/287,036, U.S. Ser. No. 60/288,608, U.S. Ser. No. 60/289,909, U.S. Ser. No. 60/292,246, and U.S. Ser. No. 60/288,712, are expressly incorporated by reference herein.

[0321] I. Construction of cDNA Libraries

[0322] Incyte cDNAs were derived from cDNA libraries described in the LIFSEQ GOLD database (Incyte Genomics, Palo Alto Calif.). Some tissues were homogenized and lysed in guanidinium isothiocyanate, while others were homogenized and lysed in phenol or in a suitable mixture of denaturants, such as TRIZOL (Life Technologies), a monophasic solution of phenol and guanidine isothiocyanate. The resulting lysates were centrifuged over CsCl cushions or extracted with chloroform. RNA was precipitated from the lysates with either isopropanol or sodium acetate and ethanol, or by other routine methods.

[0323] Phenol extraction and precipitation of RNA were repeated as necessary to increase RNA purity. In some cases, RNA was treated with DNase. For most libraries, poly(A) RNA, was isolated using oligo d(T)-coupled paramagnetic particles (Promega), OLIGOTEX latex particles (QIAGEN, Chatsworth Calif.), or an OLIGOTEX mRNA purification kit (QIAGEN). Alternatively, RNA was isolated directly from tissue lysates using other RNA isolation kits, e.g., the POLY(A)PURE mRNA purification kit (Ambion, Austin Tex.).

[0324] In some cases, Stratagene was, provided with RNA and constructed the corresponding cDNA libraries. Otherwise, cDNA was synthesized and cDNA libraries were-constructed with the UNIZAP vector system (Stratagene) or SUPERSCRIPT plasmid system (Life Technologies), using the recommended procedures or similar methods known in the art. (See, e.g., Ausubel, 1997, supra, units 5.1-6.6.) Reverse transcription was initiated using oligo d(T) or random primers. Synthetic oligonucleotide adapters were ligated to double stranded cDNA, and the cDNA was digested with the appropriate restriction enzyme or enzymes. For most libraries, the cDNA was size-selected (300-1000 bp) using SEPHACRYL S1000, SEPHAROSE CL2B, or SEPHAROSE CL4B column chromatography (Amersham Pharmacia Biotech) or preparative agarose gel electrophoresis. cDNAs were ligated into compatible restriction enzyme sites of the polylinker of a suitable plasmid, e.g., PBLUESCRIPT plasmid (Stratagene), PSPORT1 plasmid (Life Technologies), PCDNA2.1 plasmid (Invitrogen, Carlsbad Calif.), PBK-CMV plasmid (Stratagene), PCR2-TOPOTA plasmid (Invitrogen), PCMV-ICIS plasmid (Stratagene), pIGEN (Incyte Genomics, Palo Alto Calif.), pRARE (Incyte Genomics), or pINCY (Incyte Genomics), or derivatives thereof. Recombinant plasmids were transformed into competent E. coli cells including XL1-Blue, XL1-BlueMRF, or SOLR from Stratagene or DH5, DH10B, or ElectroMAX DH10B from Life Technologies.

[0325] II. Isolation of cDNA Clones

[0326] Plasmids obtained as described in Example I were recovered from host cells by in vivo excision using the UNIZAP vector system (Stratagene) or by cell lysis. Plasmids were purified using at least one of the following: a Magic or WIZARD Minipreps DNA purification system (Promega); an AGTC Miniprep purification kit (Edge Biosystems, Gaithersburg Md.); and QIAWELL 8 Plasmid, QIAWELL 8 Plus Plasmid, QIAWELL 8 Ultra Plasmid purification systems or the R.E.A.L. PREP 96 plasmid purification kit from QIAGEN. Following precipitation, plasmids were resuspended in 0.1 ml of distilled water and stored, with or without lyophilization, at 4 C.

[0327] Alternatively, plasmid DNA was amplified from host cell lysates using direct link PCR in a high-throughput format (Rao, V. B. (1994) Anal. Biochem. 216:1-14). Host cell lysis and thermal cycling steps were carried out in a single reaction mixture. Samples were processed and stored in 384-well plates, and the concentration of amplified plasmid DNA was quantified fluorometrically using PICOGREEN dye (Molecular Probes, Eugene Oreg.) and a FLUOROSKAN II fluorescence scanner (Labsystems Oy, Helsinki, Finland).

[0328] III. Sequencing and Analysis

[0329] Incyte cDNA recovered in plasmids as described in Example II were sequenced as follows. Sequencing reactions were processed using standard methods or high-throughput instrumentation such as the ABI CATALYST 800 (Applied Biosystems) thermal cycler or the PTC-200 thermal cycler (MJ Research) in conjunction with the HYDRA microdispenser (Robbins Scientific) or the MICROLAB 2200 (Hamilton) liquid transfer system. cDNA sequencing reactions were prepared using reagents provided by Amersham Pharmacia Biotech or supplied in ABI sequencing kits such as the ABI PRISM BIGDYE Terminator cycle sequencing ready reaction kit (Applied Biosystems). Electrophoretic separation of cDNA sequencing reactions and detection of labeled polynucleotides were carried out using the MEGABACE 1000 DNA sequencing system (Molecular Dynamics); the ABI PRISM 373 or 377 sequencing system (Applied Biosystems) in conjunction with standard ABI protocols and base calling software; or other sequence analysis systems known in the art. Reading frames within the cDNA sequences were identified using standard methods (reviewed in Ausubel, 1997, supra, unit 7.7). Some of the cDNA sequences were selected for extension using the techniques disclosed in Example VIII.

[0330] The polynucleotide sequences derived from Incyte cDNAs were validated by removing vector, linker, and poly(A) sequences and by masking ambiguous bases, using algorithms and programs based on BLAST, dynamic programming, and dinucleotide nearest neighbor analysis. The Incyte cDNA sequences or translations thereof were then queried against a selection of public databases such as the GenBank primate, rodent, mammalian, vertebrate, and eukaryote databases, and BLOCKS, PRINTS, DOMO, PRODOM; PROTEOME databases with sequences from Homo sapiens, Rattus norvegicus, Mus musculus, Caenorhabditis elegans, Saccharomyces cerevisiae, Schizosaccharomyces pombe, and Candida albicans (Incyte Genonmics, Palo Alto Calif.); hidden Markov model (HMM)-based protein family databases such as PFAM, INCY, and TIGRFAM (Haft, D. H. et al (2001) Nucleic Acids Res. 29:41-43); and HMM-based protein domain databases such as SMART (Schultz et al. (1998) Proc. Natl. Acad. Sci. USA 95:5857-5864; Letunic, I. et al. (2002) Nucleic Acids Res. 30:242-244). (HMM is a probabilistic approach which analyzes consensus primary structures of gene families. See, for example, Eddy, S. R. (1996) Curr. Opin. Struct. Biol. 6:361-365.) The queries were performed using programs based on BLAST, FASTA, BLIMPS, and HMMER. The Incyte cDNA sequences were assembled to produce full length polynucleotide sequences. Alternatively, GenBank cDNAs, GenBank ESTs, stitched sequences, stretched sequences, or Genscan-predicted coding sequences (see Examples IV and V) were used to extend Incyte cDNA assemblages to full length. Assembly was performed using programs based on Phred, Phrap, and Consed, and cDNA assemblages were screened for open reading frames using programs based on GeneMark, BLAST, and FASTA. The full length polynucleotide sequences were translated to derive the corresponding full length polypeptide sequences. Alternatively, a polypeptide of the invention may begin at any of the methionine residues of the full length translated polypeptide. Full length polypeptide sequences were subsequently analyzed by querying against databases such as the GenBank protein databases (genpept), SwissProt, the PROTEOME databases, BLOCKS, PRINTS, DOMO, PRODOM, Prosite, hidden Markov model (HMM)-based protein family databases such as PFAM, INCY, and TIGRFAM; and HMM-based protein domain databases such as SMART. Full length polynucleotide sequences are also analyzed using MACDNASIS PRO software (Hitachi Software Engineering, South San Francisco Calif.) and LASERGENE software (DNASTAR). Polynucleotide and polypeptide sequence alignments are generated using default parameters specified by the CLUSTAL algorithm as incorporated into the MEGALIGN multisequence alignment program (DNASTAR), which also calculates the percent identity between aligned sequences.

[0331] Table 7 summarizes the tools, programs, and algorithms used for the analysis and assembly of Incyte cDNA and full length sequences and provides applicable descriptions, references, and threshold parameters. The first column of Table 7 shows the tools, programs, and algorithms used, the second column provides brief descriptions thereof, the third column presents appropriate references, all of which are incorporated by reference herein in their entirety, and the fourth column presents, where applicable, the scores, probability values, and other parameters used to evaluate the strength of a match between two sequences (the higher the score or the lower the probability value, the greater the identity between two sequences).

[0332] The programs described above for the assembly and analysis of full length polynucleotide and polypeptide sequences were also used to identify polynucleotide sequence fragments from SEQ ID NO:16-30. Fragments from about 20 to about 4000 nucleotides which are useful in hybridization and amplification technologies are described in Table 4, column 2.

[0333] IV. Identification and Editing of Coding Sequences from Genomic DNA

[0334] Putative kinases and phosphatases were initially identified by running the Genscan gene identification program against public genomic sequence databases (e.g., gbpri and gbhtg). Genscan is a general-purpose gene identification program which analyzes genomic DNA sequences from a variety of organisms (See Burge, C. and S. Karlin (1997) J. Mol. Biol. 268:78-94, and Burge, C. and S. Karlin (1998) Curr. Opin. Struct. Biol. 8:346-354). The program concatenates predicted exons to form an assembled cDNA sequence extending from a methionine to a stop codon. The output of Genscan is a FASTA database of polynucleotide and polypeptide sequences. The maximum range of sequence for Genscan to analyze at once was set to 30 kb. To determine which of these Genscan predicted cDNA sequences encode kinases and phosphatases, the encoded polypeptides were analyzed by querying against PFAM models for kinases and phosphatases. Potential kinases and phosphatases were also identified by homology to Incyte cDNA sequences that had been annotated as kinases and phosphatases. These selected Genscan-predicted sequences were then compared by BLAST analysis to the genpept and gbpri public databases. Where necessary, the Genscan-predicted sequences were then edited by comparison to the top BLAST hit from genpept to correct errors in the sequence predicted by Genscan, such as extra or omitted exons. BLAST analysis was also used to find any Incyte cDNA or public cDNA coverage of the Genscan-predicted sequences, thus providing evidence for transcription. When Incyte cDNA coverage was available, this information was used to correct or confirm the Genscan predicted sequence. Full length polynucleotide sequences were obtained by assembling Genscan-predicted coding sequences with Incyte cDNA sequences and/or public cDNA sequences using the assembly process described in Example m. Alternatively, full length polynucleotide sequences were derived entirely from edited or unedited Genscan-predicted coding sequences.

[0335] V. Assembly of Genomic Sequence Data with cDNA Sequence Data

[0336] Stitched Sequences

[0337] Partial cDNA sequences were extended with exons predicted by the Genscan gene identification program described in Example IV. Partial cDNAs assembled as described in Example III were mapped to genomic DNA and parsed into clusters containing related cDNAs and Genscan exon predictions from one or more genomic sequences. Each cluster was analyzed using an algorithm based on graph theory and dynamic programming to integrate cDNA and genomic information, generating possible splice variants that were subsequently confirmed, edited, or extended to create a full length sequence. Sequence intervals in which the entire length of the interval was present on more than one sequence in the cluster were identified, and intervals thus identified were considered to be equivalent by transitivity. For example, if an interval was present on a cDNA and two genomic sequences, then all three intervals were considered to be equivalent. This process allows unrelated but consecutive genomic sequences to be brought together, bridged by cDNA sequence. Intervals thus identified were then stitched together by the stitching algorithm in the order that they appear along their parent sequences to generate the longest possible sequence, as well as sequence variants. Linkages between intervals which proceed along one type of parent sequence (cDNA to cDNA or genomic sequence to genomic sequence) were given preference over linkages which change parent type (cDNA to genomic sequence). The resultant stitched sequences were translated and compared by BLAST analysis to the genpept and gbpri public databases. Incorrect exons predicted by Genscan were corrected by comparison to the top BLAST hit from genpept. Sequences were further extended with additional cDNA sequences, or by inspection of genomic DNA, when necessary.

[0338] Stretched Sequences

[0339] Partial DNA sequences were extended to full length with an algorithm based on BLAST analysis; First, partial cDNAs assembled as described in Example III were queried against public databases such as the GenBank primate, rodent, mammalian, vertebrate, and eukaryote databases using the BLAST program. The nearest GenBank protein homolog was then compared by BLAST analysis to either Incyte cDNA sequences or GenScan exon predicted sequences described in Example IV. A chimeric protein was generated by using the resultant high-scoring segment pairs (HSPs) to map the translated sequences onto the GenBank protein homolog. Insertions or deletions may occur in the chimeric protein with respect to the original GenBank protein homolog. The GenBank protein homolog, the chimeric protein, or both were used as probes to search for homologous genomic sequences from the public human genome databases. Partial DNA sequences were therefore stretched or extended by the addition of homologous genomic sequences. The resultant stretched sequences were examined to determine whether it contained a complete gene.

[0340] VI. Chromosomal Mapping of KPP Encoding Polynucleotides

[0341] The sequences which were used to assemble SEQ ID NO:16-30 were compared with sequences from the Incyte LIFESEQ database and public domain databases using BLAST and other implementations of the Smith-Waterman algorithm. Sequences from these databases that matched SEQ ID NO:16-30 were assembled into clusters of contiguous and overlapping sequences using assembly algorithms such as Phrap (Table 7). Radiation hybrid and genetic mapping data available from public resources such as the Stanford Human Genome Center (SHGC), Whitehead Institute for Genome Research (WIGR), and Gnthon were used to determine if any of the clustered sequences had been previously mapped. Inclusion of a mapped sequence in a cluster resulted in the assignment of all sequences of that cluster, including its particular SEQ ID NO:, to that map location.

[0342] Map locations are represented by ranges, or intervals, of human chromosomes. The map position of an interval, in centiMorgans, is measured relative to the terminus of the chromosome's p-arm. (The centiMorgan (cM) is a unit of measurement based on recombination frequencies between chromosomal markers. On average, 1 cM is roughly equivalent to 1 megabase (Mb) of DNA in humans, although this can vary widely due to hot and cold spots of recombination.) The cM distances are based on genetic markers mapped by Gnthon which provide boundaries for radiation hybrid markers whose sequences were included in each of the clusters. Human genome maps and other resources available to the public, such as the NCBI GeneMap '99 World Wide Web site (http://www.ncbi.nlm.nfh.gov/genemap/), can be employed to determine if previously identified disease genes map within or in proximity to the intervals indicated above.

[0343] In this manner, SEQ ID NO:17 was mapped to chromosome 5 within the interval from 174.30 centiMorgans to qter, to chromosome 10 within the interval from 83.30 to 89.40 centiMorgans, and to chromosome 10 within the interval from 89.40 to 96.90 centiMorgans. More than one map location is reported for SEQ ID NO:17, indicating that sequences having different map locations were assembled into a single cluster. This situation occurs, for example, when sequences having strong similarity, but not complete identity, are assembled into a single cluster.

[0344] VII. Analysis of Polynucleotide Expression

[0345] Northern analysis is a laboratory technique used to detect the presence of a transcript of a gene and involves the hybridization of a labeled nucleotide sequence to a membrane on which RNAs from a particular cell type or tissue have been bound. (See, e.g., Sambrook, supra, ch. 7; Ausubel (1995) supra, ch. 4 and 16.)

[0346] Analogous computer techniques applying BLAST were used to search for identical or related molecules in cDNA databases such as GenBank or LIFESEQ (Incyte Genomics). This analysis is much faster than multiple membrane-based hybridizations. In addition, the sensitivity of the computer search can be modified to determine whether any particular match is categorized as exact or similar. The basis of the search is the product score, which is defined as: $\frac{\mathrm{BLAST}\mathrm{Score}\mathrm{Percent}\mathrm{Identity}}{5\mathrm{minimum}\left\{\mathrm{length}\left(\mathrm{Seq}.1\right),\mathrm{length}\left(\mathrm{Seq}.2\right)\right\}}$

[0347] The product score takes into account both the degree of similarity between two sequences and the length of the sequence match. The product score is a normalized value between 0 and 100, and is calculated as follows: the BLAST score is multiplied by the percent nucleotide identity and the product is divided by (5 times the length of the shorter of the two sequences). The BLAST score is calculated by assigning a score of 5 for every base that matches in a high-scoring segment pair (HSP), and 4 for every mismatch. Two sequences may share more than one HSP (separated by gaps). If there is more than one HSP, then the pair with the highest BLAST score is used to calculate the product score. The product score represents a balance between fractional overlap and quality in a BLAST alignment. For example, a product score of 100 is produced only for 100% identity over the entire length of the shorter of the two sequences being compared. A product score of 70 is produced either by 100% identity and 70% overlap at one end, or by 88% identity and 100% overlap at the. other. A product score of 50 is produced either by 100% identity and 50% overlap at one end, or 79% identity and 100% overlap.

[0348] Alternatively, polynucleotide sequences encoding KPP are analyzed with respect to the tissue sources from which they were derived. For example, some full length sequences are assembled, at least in part, with overlapping Incyte cDNA sequences (see Example m). Each cDNA sequence is derived from a cDNA library constructed from a human tissue. Each human tissue is classified into one of the following organ/tissue categories: cardiovascular system; connective tissue; digestive system; embryonic structures; endocrine system; exocrine glands; genitalia, female; genitalia, male; germ cells; hemic and immune system; liver; musculoskeletal system; nervous system; pancreas; respiratory system; sense organs; skin; stomatognathic system; unclassified/mixed; or urinary tract. The number of libraries in each category is counted and divided by the total number of libraries across all categories. Similarly, each human tissue is classified into one of the following disease/condition categories: cancer, cell line, developmental, inflammation, neurological, trauma, cardiovascular, pooled, and other, and the number of libraries in each category is counted and divided by the total number of libraries across all categories. The resulting percentages reflect the tissue- and disease-specific expression of cDNA encoding KPP. cDNA sequences and cDNA library/tissue information are found in the LIFESEQ GOLD database (Incyte Genomics, Palo Alto Calif.).

[0349] VIII. Extension of KPP Encoding Polynucleotides

[0350] Full length polynucleotide sequences were also produced by extension of an appropriate fragment of the full length molecule using oligonucleotide primers designed from this fragment. One primer was synthesized to initiate 5 extension of the known fragment, and the other primer was synthesized to initiate 3 extension of the known fragment. The initial primers were designed using OLIGO 4.06 software (National Biosciences), or another appropriate program, to be about 22 to 30 nucleotides in length, to have a GC content of about 50% or more, and to anneal to the target sequence at temperatures of about 68 C. to about 72 C. Any stretch of nucleotides which would result in hairpin structures and primer-primer dimerizations was avoided.

[0351] Selected human cDNA libraries were used to extend the sequence. If more than one extension was necessary or desired, additional or nested sets of primers were designed.

[0352] High fidelity amplification was obtained by PCR using methods well known in the art. PCR was performed in 96-well plates using the PTC-200 thermal cycler (MJ Research, Inc.). The reaction mix contained DNA template, 200 nmol of each primer, reaction buffer containing Mg², (NH₄)₂SO₄, and 2-mercaptoethanol, Taq DNA polymerase (Amersham Pharmacia Biotech), ELONGASE enzyme (Life Technologies), and Pfu DNA polymerase (Stratagene), with the following parameters for primer pair PCI A and PCI B: Step 1: 94 C., 3 min; Step 2: 94 C., 15 sec; Step 3: 60 C., 1 min; Step 4: 68 C., 2 min; Step 5: Steps 2, 3, and 4 repeated 20 times; Step 6: 68 C., 5 min; Step 7: storage at 4 C. In the alternative, the parameters for primer pair T7 and SK were as follows: Step 1: 94 C., 3 min; Step 2: 94 C., 15 sec; Step 3: 57 C., 1 min; Step 4: 68 C., 2 min; Step 5: Steps 2, 3, and 4 repeated 20 times; Step 6: 68 C., 5 min; Step 7: storage at 4 C.

[0353] The concentration of DNA in each well was determined by dispensing 100 l PICOGREEN quantitation reagent (0.25% (v/v) PICOGREEN; Molecular Probes, Eugene Oreg.) dissolved in 1 TE and 0.5 l of undiluted PCR product into each well of an opaque fluorimeter plate (Corning Costar, Acton Mass.), allowing the DNA to bind to the reagent. The plate was scanned in a Fluoroskan II (Labsystems Oy, Helsinki, Finland) to measure the fluorescence of the sample and to quantify the concentration of DNA. A 5 l to 10 l aliquot of the reaction mixture was analyzed by electrophoresis on a 1% agarose gel to determine which reactions were successful in extending the sequence.

[0354] The extended nucleotides were desalted and concentrated, transferred to 384-well plates, digested with CviJI cholera virus endonuclease (Molecular Biology Research, Madison Wis.), and sonicated or sheared prior to religation into pUC 18 vector (Amersham Pharmacia Biotech). For shotgun sequencing, the digested nucleotides were separated on low concentration (0.6 to 0.8%) agarose gels, fragments were excised, and agar digested with Agar ACE (Promega). Extended clones were religated using T4 ligase (New England Biolabs, Beverly Mass.) into pUC 18 vector (Amersham Pharmacia Biotech), treated with Pfu DNA polymerase (Stratagene) to fill-in restriction site overhangs, and transfected into competent E. coli cells. Transformed cells were selected on antibiotic-containing media, and individual colonies were picked and cultured overnight at 37 C. in 384-well plates in LB/2 carb liquid media.

[0355] The cells were lysed, and DNA was amplified by PCR using Taq DNA polymerase (Amersham Pharmacia Biotech) and Pfu DNA polymerase (Stratagene) with the following parameters: Step 1: 94 C., 3 min; Step 2: 94 C., 15 sec; Step 3: 60 C., 1 min; Step 4: 72 C., 2 min; Step 5: steps 2, 3, and 4 repeated 29 times; Step 6: 72 C., 5 min; Step 7: storage at 4 C. DNA was quantified by PICOGREEN reagent Molecular Probes) as described above. Samples with low DNA recoveries were reamplified using the same conditions as described above. Samples were diluted with 20% dimethysulfoxide (1:2, v/v), and sequenced using DYENAMIC energy transfer sequencing primers and the DYENAMIC DIRECT kit (Amersham Pharmacia Biotech) or the ABI PRISM BIGDYE Terminator cycle sequencing ready reaction kit (Applied Biosystems).

[0356] In like manner, full length polynucleotide sequences are verified using the above procedure or are used to obtain 5 regulatory sequences using the above procedure along with oligonucleotides designed for such extension, and an appropriate genomic library.

[0357] IX. Identification of Single Nucleotide Polymorphisms in KPP Encoding Polynucleotides

[0358] Common DNA sequence variants known as single nucleotide polymorphisms (SNPs) were identified in SEQ ID NO:16-30 using the LIFESEQ database (Incyte Genomics). Sequences from the same gene were clustered together and assembled as described in Example III, allowing the identification of all sequence variants in the gene. An algorithm consisting of a series of filters was used to distinguish SNPs from other sequence variants. Preliminary filters removed the majority of basecall errors by requiring a minimum Phred quality score of 15, and removed sequence alignment errors and errors resulting from improper trimming of vector sequences, chimeras, and splice variants. An automated procedure of advanced chromosome analysis analysed the original chromatogram files in the vicinity of the putative SNP. Clone error filters used statistically generated algorithms to identify errors introduced during laboratory processing, such as those caused by reverse transcriptase, polymerase, or somatic mutation. Clustering error filters used statistically generated algorithms to identify errors resulting from clustering of close homologs or pseudogenes, or due to contamination by non-human sequences. A final set of filters removed duplicates and SNPs found in immunoglobulins or T-cell receptors.

[0359] Certain SNPs were selected for further characterization by mass spectrometry using the high throughput MASSARRAY system (Sequenom, Inc.) to analyze allele frequencies at the SNP sites in four different human populations. The Caucasian population comprised 92 individuals (46 male, 46 female), including 83 from Utah, four French, three Venezualan, and two Amish individuals. The African population comprised 194 individuals (97 male, 97 female), all African Americans. The Hispanic population comprised 324 individuals (162 male, 162 female), all Mexican Hispanic. The Asian population comprised 126 individuals (64 male, 62 female) with a reported parental breakdown of 43% Chinese, 31% Japanese, 13% Korean, 5% Vietnamese, and 8% other Asian. Allele frequencies were first analyzed in the Caucasian population; in some cases those SNPs which showed no allelic variance in this population were not further tested in the other three populations.

[0360] X. Labeling and Use of Individual Hybridization Probes

[0361] Hybridization probes derived from SEQ ID NO:16-30 are employed to screen cDNAs, genomic DNAs, or mRNAs. Although the labeling of oligonucleotides, consisting of about 20 base pairs, is specifically described, essentially the same procedure is used with larger nucleotide fragments. Oligonucleotides are designed using state-of-the-art software such as OLIGO 4.06 software (National Biosciences) and labeled by combining 50 mol of each oligomer, 250 Ci of -³²P adenosine triphosphate (Amersham Pharmacia Biotech), and T4 polynucleotide kinase (DuPont NEN, Boston Mass.). The labeled oligonucleotides are substantially purified using a SEPHADEX G-25 superfine size exclusion dextran bead column (Amersham Pharmacia Biotech). An aliquot containing 10⁷ counts per minute of the labeled probe is used in a typical membrane-based hybridization analysis of human genomic DNA digested with one of the following endonucleases: Ase I, Bgl II, Eco RI, Pst I, Xba I, or Pvu II (DuPont NEN).

[0362] The DNA from each digest is fractionated on a 0.7% agarose gel and transferred to nylon membranes (Nytran Plus, Schleicher & Schuell, Durham N.H.). Hybridization is carried out;for 16 hours at 40 C. To remove nonspecific signals, blots are sequentially washed at room temperature under conditions of up to, for example, 0.1 saline sodium citrate and 0.5% sodium dodecyl sulfate. Hybridization patterns are visualized using autoradiography or an alternative imaging means and compared.

[0363] XI. Microarrays

[0364] The linkage or synthesis of array elements upon a microarray can be achieved utilizing photolithography, piezoelectric printing (ink-jet printing, See, e.g., Baldeschweiler, supra.), mechanical microspotting technologies, and derivatives thereof. The substrate in each of the aforementioned technologies should be uniform and solid with a non-porous surface (Schena (1999), supra). Suggested substrates include silicon, silica, glass slides, glass chips, and silicon wafers. Alternatively, a procedure analogous to a dot or slot blot may also be used to arrange and link elements to the surface of a substrate using thermal, UV, chemical, or mechanical bonding procedures. A typical array may be produced using available methods and machines well known to those of ordinary skill in the art and may contain any appropriate number of elements. (See, e.g., Schena, M. et al. (1995) Science 270:467-470; Shalon, D. et al. (1996) Genome Res. 6:639-645; Marshall, A. and J. Hodgson (1998) Nat. Biotechnol. 16:27-31.)

[0365] Full length cDNAs, Expressed Sequence Tags (ESTs), or fragments or oligomers thereof may comprise the elements of the microarray. Fragments or oligomers suitable for hybridization can be selected using software well known in the art such as LASERGENE software (DNASTAR). The array elements are hybridized with polynucleotides in a biological sample. The polynucleotides in the biological sample are conjugated to a fluorescent label or other molecular tag for ease of detection. After hybridization, nonhybridized nucleotides from the biological sample are removed, and a fluorescence scanner is used to detect hybridization at each array element. Alternatively, laser desorbtion and mass spectrometry maybe used for detection of hybridization. The degree of complementarity and the relative abundance of each polynucleotide which hybridizes to an element on the microarray may be assessed. In one embodiment, microarray preparation and usage is described in detail below.

[0366] Tissue or Cell Sample Preparation

[0367] Total RNA is isolated from tissue samples using the guanidinium thiocyanate method and poly(A) RNA is purified using the oligo-(dT) cellulose method. Each poly(A) RNA sample is reverse transcribed using MMLV reverse-transcriptase, 0.05 pg/l oligo-(dT) primer (21 mer), 1 first strand buffer, 0.03 units/l RNase inhibitor, 500 M dATP, 500 M dGTP, 500 M dTTP, 40 M dCTP, 40 M dCTP-Cy3 (BDS) or dCTP-Cy5 (Amersham Pharmacia Biotech). The reverse transcription reaction is performed in a 25 ml volume containing 200 ng poly(A) RNA with GEMBRIGHT kits (Incyte). Specific control poly(A) RNAs are synthesized by in vitro transcription from non-coding yeast genomic DNA. After incubation at 37 C. for 2 hr, each reaction sample (one with Cy3 and another with Cy5 labeling) is treated with 2.5 ml of 0.5M sodium hydroxide and incubated for 20 minutes at 85 C. to the stop the reaction and degrade the RNA. Samples are purified using two successive CHROMA SPIN 30 gel filtration spin columns (CLONTECH Laboratories, Inc. (CLONTECH), Palo Alto Calif.) and after combining, both reaction samples are ethanol precipitated using 1 ml of glycogen (1 mg/ml), 60 ml sodium acetate, and 300 ml of 100% ethanol. The sample is then dried to completion using a SpeedVAC (Savant Instruments Inc., Holbrook N.Y.) and resuspended in 14 l 5SSC/0.2% SDS.

[0368] Microarray Preparation

[0369] Sequences of the present invention are used to generate array elements. Each array element is amplified from bacterial cells containing vectors with cloned cDNA inserts. PCR amplification uses primers complementary to the vector sequences flanking the cDNA insert. Array elements are amplified in thirty cycles of PCR from an initial quantity of 1-2 ng to a final quantity greater than 5 g. Amplified array elements are then purified using SEPHACRYL-400 (Amersham Pharmacia Biotech).

[0370] Purified array elements are immobilized on polymer-coated glass slides. Glass microscope slides (Corning) are cleaned by ultrasound in 0.1% SDS and acetone, with extensive distilled water washes between and after treatments. Glass slides are etched in 4% hydrofluoric acid (VWR Scientific Products Corporation (VWR), West Chester Pa.), washed extensively in distilled water, and coated with 0.05% aminopropyl silane (Sigma) in 95% ethanol. Coated slides are cured in a 100 C. oven.

[0371] Array elements are applied to the coated glass substrate using a procedure described in U.S. Pat. No. 5,807,522, incorporated herein by reference. 1 l of the array element DNA, at an average concentration of 100 ng/l, is loaded into the open capillary printing element by a high-speed robotic apparatus. The apparatus then deposits about 5 nl of array element sample per slide.

[0372] Microarrays are UV-crosslinked using a STRATALINKER UV-crosslinker (Stratagene). Microarrays are washed at room temperature once in 0.2% SDS and three times in distilled water. Non-specific binding sites are blocked by incubation of microarrays in 0.2% casein in phosphate buffered saline (PBS) (Tropix, Inc., Bedford Mass.) for 30 minutes at 60 C. followed by washes in 0.2% SDS and distilled water as before.

[0373] Hybridization

[0374] Hybridization reactions contain 9 l of sample mixture consisting of 0.2 g each of Cy3 and Cy5 labeled cDNA synthesis products in 5SSC, 0.2% SDS hybridization buffer. The sample mixture is heated to 65 C. for 5 minutes and is aliquoted onto the microarray surface and covered with an 1.8 cm² coverslip. The arrays are transferred to a waterproof chamber having a cavity just slightly larger than a microscope slide. The chamber is kept at 100% humidity internally by the addition of 140 l of 5SSC in a corner of the chamber. The chamber containing the arrays is incubated for about 6.5 hours at 60 C. The arrays are washed for 10 min at 45 C. in a first washbuffer (1SSC, 0.1% SDS), three times for 10 minutes each at 45 C. in a second wash buffer (0.1SSC), and dried.

[0375] Detection

[0376] Reporter-labeled hybridization complexes are detected with a microscope equipped with an Innova 70 mixed gas 10 W laser (Coherent, Inc., Santa Clara Calif.) capable of generating spectral lines at 488 nm for excitation of Cy3 and at 632 nm for excitation of Cy5. The excitation laser light is focused on the array using a 20 microscope objective (Nikon, Inc., Melville N.Y.). The slide containing the array is placed on a computer-controlled X-Y stage on the microscope and raster-scanned past the objective. The 1.8 cm1.8 cm array used in the present example is scanned with a resolution of 20 micrometers.

[0377] In two separate scans, a mixed gas multiline laser excites the two fluorophores sequentially. Emitted light is split, based on wavelength, into two photomultiplier tube detectors (PMT R1477, Hamamatsu Photonics Systems, Bridgewater N.J.) corresponding to the two fluorophores. Appropriate filters positioned between the array and the photomultiplier tubes are used to filter the signals. The emission maxima of the fluorophores used are 565 nm for Cy3 and 650 nm for Cy5. Each array is typically scanned twice, one scan per fluorophore using the appropriate filters at the laser source, although the apparatus is capable of recording the spectra from both fluorophores simultaneously.

[0378] The sensitivity of the scans is typically calibrated using the signal intensity generated by a cDNA control species added to the sample mixture at a known concentration. A specific location on the array contains a complementary DNA sequence, allowing the intensity of the signal at that location to be correlated with a weight ratio of hybridizing species of 1:100,000. When two samples from different sources (e.g., representing test and control cells), each labeled with a different fluorophore, are hybridized to a single array for the purpose of identifying genes that are differentially expressed, the calibration is done by labeling samples of the calibrating cDNA with the two fluorophores and adding identical amounts of each to the hybridization mixture.

[0379] The output of the photomultiplier tube is digitized using a 12-bit RTI-835H analog-to-digital (A/D) conversion board (Analog Devices, Inc., Norwood Mass.) installed in an IBM-compatible PC computer. The digitized data are displayed as an image where the signal intensity is mapped using a linear 20-color transformation to a pseudocolor scale ranging from blue (low signal) to red (high signal). The data is also analyzed quantitatively. Where two different fluorophores are excited and measured simultaneously, the data are first corrected for optical crosstalk (due to overlapping emission spectra) between the fluorophores using each fluorophore's emission spectrum.

[0380] A grid is superimposed over the fluorescence signal image such that the signal from each spot is centered in each element of the grid. The fluorescence signal within each element is then integrated to obtain a numerical value corresponding to the average intensity of the signal. The software used for signal analysis is the GEMTOOLS gene expression analysis program (Incyte).

[0381] XII. Complementary Polynucleotides

[0382] Sequences complementary to the KPP-encoding sequences, or any parts thereof, are used to detect, decrease, or inhibit expression of naturally occurring KPP. Although use of oligonucleotides comprising from about 15 to 30 base pairs is described, essentially the same procedure is used with smaller or with larger sequence fragments. Appropriate oligonucleotides are designed using OLIGO 4.06 software (National Biosciences) and the coding sequence of KPP. To inhibit transcription, a complementary oligonucleotide is designed from the most unique 5 sequence and used to prevent promoter binding to the coding sequence. To inhibit translation, a complementary oligonucleotide is designed to prevent ribosomal binding to the KPP-encoding transcript.

[0383] XIII. Expression of KPP

[0384] Expression and purification of KPP is achieved using bacterial or virus-based expression systems. For expression of KPP in bacteria, cDNA is subcloned into an appropriate vector containing an antibiotic resistance gene and an inducible promoter that directs high levels of cDNA transcription. Examples of such promoters include, but are not limited to, the trp-lac (tac) hybrid promoter and the T5 or T7 bacteriophage promoter in conjunction with the lac operator regulatory element. Recombinant vectors are transformed into suitable bacterial hosts, e.g., BL21(DE3). Antibiotic resistant bacteria express KPP upon induction with isopropyl beta-D-thiogalactopyranoside (IPTG). Expression of KPP in eukaryotic cells is achieved by infecting insect or mammalian cell lines with recombinant Autographica californica nuclear polyhedrosis virus (AcMNPV), commonly known as baculovirus. The nonessential polyhedrin gene of baculovirus is replaced with cDNA encoding KPP by either homologous recombination or bacterial-mediated transposition involving transfer plasmid intermediates. Viral infectivity is maintained and the strong polyhedrin promoter drives high levels of cDNA transcription. Recombinant baculovirus is used to infect Spodoptera frugiperda (Sf9) insect cells in most cases, or human hepatocytes, in some cases. Infection of the latter requires additional genetic modifications to baculovirus. (See Engelhard, E. K. et al. (1994) Proc. Natl. Acad. Sci. USA 91:3224-3227; Sandig, V. et al. (1996) Hum. Gene Ther. 7:1937-1945.)

[0385] In most expression systems, KPP is synthesized as a fusion protein with, e.g., glutathione S-transferase (GST) or a peptide epitope tag, such as FLAG or 6-His, permitting rapid, single-step, affinity-based purification of recombinant fusion protein from crude cell lysates. GST, a 26-kilodalton enzyme from Schistosoma japonicum, enables the purification of fusion proteins on immobilized glutathione under conditions that maintain protein activity and antigenicity (Amersham Pharmacia Biotech). Following purification, the GST moiety can be proteolytically cleaved from KPP at specifically engineered sites. FLAG, an 8-ammo acid peptide, enables immunoaffinity purification using commercially available monoclonal and polyclonal anti-FLAG antibodies (Eastman Kodak). 6-His, a stretch of six consecutive histidine residues, enables purification on metal-chelate resins (QIAGEN). Methods for protein expression and purification are discussed in Ausubel (1995, supra, ch. 10 and 16). Purified KPP obtained by these methods can be used directly in the assays shown in Examples XVII, XVIII, XIX, XX, XXI, and XXII where applicable.

[0386] XIV. Functional Assays

[0387] KPP function is assessed by expressing the sequences encoding KPP at physiologically elevated levels in mammalian cell culture systems. cDNA is subcloned into a mammalian expression vector containing a strong promoter that drives high levels of cDNA expression. Vectors of choice include PCMV SPORT (Life Technologies) and PCR3.1 (Invitrogen, Carlsbad Calif.), both of which contain the cytomegalovirus promoter. 5-10 g of recombinant vector are transiently transfected into a human cell line, for example, an endothelial or hematopoietic cell line, using either liposome formulations or electroporation. 1-2 g of an additional plasmid containing sequences encoding a marker protein are co-transfected. Expression of a marker protein provides a means to distinguish transfected cells from nontransfected cells and is a reliable predictor of cDNA expression from the recombinant vector. Marker proteins of choice include, e.g., Green Fluorescent Protein (GFP; Clontech), CD64, or a CD64-GFP fusion protein. Flow cytometry (FCM), an automated, laser optics-based technique, is used to identify transfected cells expressing GFP or CD64-GFP and to evaluate the apoptotic state of the cells and other cellular properties. FCM detects and quantifies the uptake of fluorescent molecules that diagnose events preceding or coincident with cell death. These events include changes in nuclear DNA content as measured by staining of DNA with propidium iodide; changes in cell size and granularity as measured by forward light scatter and 90 degree side light scatter; down-regulation of DNA synthesis as measured by decrease in bromodeoxyuridine uptake; alterations in expression of cell surface and intracellular proteins as measured by reactivity with specific antibodies; and alterations in plasma membrane-composition as measured by the binding of fluorescein-conjugated Annexin V protein to the cell surface. Methods in flow cytometry are discussed in Ormerod, M. G. (1994) Flow Cytometry, Oxford, New York N.Y.

[0388] The influence of KPP on gene expression can be assessed using highly purified populations of cells transfected with sequences encoding KPP and either CD64 or CD64-GFP. CD64 and CD64-GFP are expressed on the surface of transfected-cells and bind to conserved regions of human immunoglobulin G (IgG). Transfected cells are efficiently separated from nontransfected cells using magnetic beads coated with either human IgG or antibody against CD64 (DYNAL, Lake Success N.Y.). mRNA can be purified from the cells using methods well known by those of skill in the art. Expression of mRNA encoding KPP and other genes of interest can be analyzed by northern analysis or microarray techniques.

[0389] XV. Production of KPP Specific Antibodies

[0390] KPP substantially purified using polyacrylamide gel electrophoresis (PAGE; see, e.g., Harrington, M. G. (1990) Methods Enzymol. 182:488-495), or other purification techniques, is used to immunize animals (e.g., rabbits, mice, etc.) and to produce antibodies using standard protocols.

[0391] Alternatively, the KPP amino acid sequence is analyzed using LASERGENE software (DNASTAR) to determine regions of high immunogenicity, and a corresponding oligopeptide is synthesized and used to raise antibodies by means known to those of skill in the art. Methods for selection of appropriate epitopes, such as those near the C-terminus or in hydrophilic regions are well described in the art. (See, e.g., Ausubel, 1995, supra, ch. 11.) Typically, oligopeptides of about 15 residues in length are synthesized using an ABI 431A peptide synthesizer (Applied Biosystems) using FMOC chemistry and coupled to KLH (Sigma-Aldrich, St. Louis Mo.) by reaction with N-maleimidobenzoyl-N-hydroxysuccinimide ester (MBS) to increase immunogenicity. (See, e.g., Ausubel, 1995, supra.) Rabbits are immunized with the oligopeptide-KLH complex in complete Freund's adjuvant. Resulting antisera are tested for antipeptide and anti-KPP activity by, for example, binding the peptide or KPP to a substrate, blocking with 1% BSA, reacting with rabbit antisera, washing, and reacting with radio-iodinated goat anti-rabbit IgG.

[0392] XVI. Purification of Naturally Occurring KPP Using Specific Antibodies

[0393] Naturally occurring or recombinant KPP is substantially purified by immunoaffinity chromatography using antibodies specific for KPP. An immunoaffinity column is constructed by covalently coupling anti-KPP antibody to an activated chromatographic resin, such as CNBr-activated, SEPHAROSE (Amersham Pharmacia Biotech). After the coupling, the resin is blocked and washed according to the manufacturer's instructions.

[0394] Media containing KPP are passed over the immunoaffinity column, and the column is washed under conditions that allow the preferential absorbance of KPP (e.g., high ionic strength buffers in the presence of detergent). The column is eluted under conditions that disrupt antibody/KPP binding (e.g., a buffer of pH 2 to pH 3, or a high concentration of a chaotrope, such as urea or thiocyanate ion), and KPP is collected.

[0395] XVII. Identification of Molecules Which Interact with KPP

[0396] KPP, or biologically active fragments thereof, are labeled with ¹²⁵I Bolton-Hunter reagent (See, e.g., Bolton, A. E. and W. M. Hunter (1973) Biochem. J. 133:529-539.) Candidate molecules previously arrayed in the wells of a multi-well plate are incubated with the labeled KPP, washed, and any wells with labeled KPP complex are assayed. Data obtained using different concentrations of KPP are used to calculate values for the number, affinity, and association of KPP with the candidate molecules.

[0397] Alternatively, molecules interacting with KPP are analyzed using the yeast two-hybrid system as described in Fields, S. and O. Song (1989) Nature 340:245-246, or using commercially available kits based on the two-hybrid system, such as the MATCHMAKER system (Clontech).

[0398] KPP may also be used in the PATHCALLING process (CuraGen Corp., New Haven Conn.) which employs the yeast two-hybrid system in a high-throughput manner to determine all interactions between the proteins encoded by two large libraries of genes (Nandabalan, K. et al. (2000) U.S. Pat. No. 6,057,101).

[0399] XVIII. Demonstration of KPP Activity

[0400] Generally, protein kinase activity is measured by quantifying the phosphorylation of a protein substrate by KPP in the presence of -³²PATP. KPP is incubated with the protein substrate, ³²P-ATP, and an appropriate kinase buffer. The ³²P incorporated into the substrate is separated from free ³²P-ATP by electrophoresis and the incorporated ³²P is counted using a radioisotope counter. The amount of incorporated ³²P is proportional to the activity of KPP. A determination of the specific amino acid residue phosphorylated is made by phosphoamino acid analysis of the hydrolyzed protein.

[0401] In one alternative, protein kinase activity is measured by quantifying the transfer of gamma phosphate from adenosine triphosphate (ATP) to a serine, threonine or tyrosine residue in a protein substrate. The reaction occurs between a protein kinase-sample with a biotinylated peptide substrate and gamma ³²P-ATP. Following the reaction, free avidin in solution is added for binding to the biotinylated ³²P-peptide product. The binding sample then undergoes a centrifugal ultrafiltration process with a membrane which will retain the product-avidin complex and allow passage of free gamma ³²P-ATP. The reservoir of the centrifuged unit containing the ³²P-peptide product as retentate is then counted in a scintillation counter. This procedure allows the assay of any type of protein kinase sample, depending on the peptide substrate and kinase reaction buffer selected. This assay is provided in kit form (ASUA, Affinity Ultrafiltration Separation Assay, Transbio Corporation, Baltimore Md., U.S. Pat. No. 5,869,275). Suggested substrates and their respective enzymes include but are not limited to: Histone H1 (Sigma) and p34^cdc2kinase, Annexin I, Angiotensin (Sigma) and EGF receptor kinase, Annexin II and src kinase, ERK1 & ERK2 substrates and MEK, and myelin basic protein and ERK (Pearson, J. D. et al. (1991) Methods Enzymol. 200:62-81).

[0402] In another alternative, protein kinase activity of KPP is demonstrated in an assay containing KPP, 50 l of kinase buffer, 1 g substrate, such as myelin basic protein (MBP) or synthetic peptide substrates, 1 mM DTT, 10 g ATP, and 0.5 Ci -³²PATP. The reaction is incubated at 30 C. for 30 minutes and stopped by pipetting onto P81 paper. The unincorporated -³²PATP is removed by washing and the incorporated radioactivity is measured using a scintillation counter. Alternatively, the reaction is stopped by heating to 100 C. in the presence of SDS loading buffer and resolved on a 12% SDS polyacrylamide gel followed by autoradiography. Incorporated radioactivity is corrected for reactions carried out in the absence of KPP or in the presence of the inactive kinase, K38A. The amount of incorporated ³²P is proportional to the activity of KPP.

[0403] In yet another alternative, adenylate kinase or guanylate kinase activity of KPP maybe measured by the incorporation of ³²P from -³²PATP into ADP or GDP using a gamma radioisotope counter. KPP, in a kinase buffer, is incubated together with the appropriate nucleotide mono-phosphate substrate (AMP or GMP) and ³²P-labeled ATP as the phosphate donor. The reaction is incubated at 37 C. and terminated by addition of trichloroacetic acid. The acid extract is neutralized and subjected to gel electrophoresis to separate the mono-, di-, and triphosphonucleotide fractions. The diphosphonucleotide fraction is excised and counted. The radioactivity recovered is proportional to the activity of KPP.

[0404] In yet another alternative, other assays for KPP include scintillation proximity assays (SPA), scintillation plate technology and filter binding assays. Useful substrates include recombinant proteins tagged with glutathione transferase, or synthetic peptide substrates tagged with biotin. Inhibitors of KPP activity, such as small organic molecules, proteins or peptides, may be identified by such assays.

[0405] In another alternative, phosphatase activity of KPP is measured by the hydrolysis of para-nitrophenyl phosphate (PNPP). KPP is incubated together with PNPP in HEPES buffer pH 7.5, in the presence of 0.1% -mercaptoethanol at 37 C. for 60 min. The reaction is stopped by the addition of 6 ml of 10 N NaOH (Diamond, R. H. et al. (1994) Mol. Cell. Biol. 14:3752-62). Alternatively, acid phosphatase activity of KPP is demonstrated by incubating KPP-containing extract with 100 l of 10 mM PNPP in 0.1 M sodium citrate, pH 4.5, and 50 l of 40 mM NaCl at 37 C. for 20 min. The reaction is stopped by the addition of 0.5 ml of 0.4 M glycine/NaOH, pH 10.4 (Saftig, P. et al. (1997) J. Biol. Chem. 272:18628-18635). The increase in light absorbance at 410 nm resulting from the hydrolysis of PNPP is measured using a spectrophotometer. The increase in light absorbance is proportional to the activity of KPP in the assay.

[0406] In the alternative, KPP activity is determined by measuring the amount of phosphate removed from a phosphorylated protein substrate. Reactions are performed with 2 or 4 nM KPP in a final volume of 30 l containing 60 mM Tris, pH 7.6, 1 mM EDTA, 1 mM EGTA, 0.1% -mercaptoethanol and 10 M substrate, ³²P-labeled on serine/threonine or tyrosine, as appropriate. Reactions are initiated with substrate and incubated at 30 C. for 10-15 min. Reactions are quenched with 450 l of 4% (w/v) activated charcoal in 0.6 M HCl, 90 mM Na₄P₂O₇, and 2 mM NaH₂PO₄, then centrifuged at 12,000 g for 5 min. Acid-soluble ³²Pi is quantified by liquid scintillation counting (Sinclair, C. et al. (1999) J. Biol. Chem. 274:23666-23672).

[0407] XIX. Kinase Binding Assay

[0408] Binding of KPP to a FLAG-CD44 cyt fusion protein can be determined by incubating KPP with anti-KPP-conjugated immunoaffinity beads followed by incubating portions of the beads (having 10-20 ng of protein) with 0.5 ml of a binding buffer (20 mM Tris-HCL (pH 7.4), 150 mM NaCl, 0.1% bovine serum albumin, and 0.05% Triton X-100) in the presence of ¹²⁵I-labeled FLAG-CD44cyt fusion protein (5,000 cpm/ng protein) at 4 C. for 5 hours. Following binding, beads were washed thoroughly in the binding buffer and the bead-bound radioactivity measured in a scintillation counter (Bourguignon, L. Y. W. et al, (2001) J. Biol. Chem. 276:7327-7336). The amount of incorporated ³²P is proportional to the amount of bound KPP.

[0409] XX. Identification of KPP Inhibitors

[0410] Compounds to be tested are arrayed in the wells of a 384-well plate in varying concentrations along with an appropriate buffer and substrate, as described in the assays in Example XVII. KPP activity is measured for each well and the ability of each compound to inhibit KPP activity can be determined, as well as the dose-response kinetics. This assay could also be used to identify molecules which enhance KPP activity.

[0411] XXI. Identification of KPP Substrates

[0412] A KPP substrate-trapping assay takes advantage of the increased substrate affinity that may be conferred by certain mutations in the PTP signature sequence of protein tyrosine phosphatases. KPP bearing these mutations form a stable complex with their substrate; this complex may be isolated biochemically. Site-directed mutagenesis of invariant residues in the PTP signature sequence in a clone encoding the catalytic domain of KPP is performed using a method standard in the art or a commercial kit, such as the MUTA-GENE kit from BIO-RAD. For expression of KPP mutants in Escherichia coli, DNA fragments containing the mutation are exchanged with the corresponding wild-type sequence in an expression vector bearing the sequence encoding KPP or a glutathione S-transferase (GST)-KPP fusion protein. KPP mutants are expressed in E. coli and purified by chromatography.

[0413] The expression vector is transfected into COS1 or 293 cells via calcium phosphate-mediated transfection with 20 g of CsCl-purified DNA per 10-cm dish of cells or 8 g per 6-cm dish. Forty-eight hours after transfection, cells are stimulated with 100 ng/ml epidermal growth factor to increase tyrosine phosphorylation in cells, as the tyrosine kinase EGFR is abundant in COS cells. Cells are lysed in 50 mM Tris.HCl, pH 7.5/5 mM EDTA/150 mM NaCl/1% Triton X-100/5 mM iodoacetic acid/10 mM sodium phosphate/10 mM NaF/5 g/ml leupeptin/5 g/ml aprotinin/1 mM benzamidine (1 ml per 10-cm dish, 0.5 ml per 6-cm dish). KPP is immunoprecipitated from lysates with an appropriate antibody. GST-KPP fusion proteins are precipitated with glutathione-Sepharose, 4 g of mAb or 10 l of beads respectively per mg of cell lysate. Complexes can be visualized by PAGE or further purified to identify substrate molecules (Flint, A. J. et al. (1997) Proc. Natl. Acad. Sci. USA 94:1680-1685).

[0414] XXII. Enhancement/Inhibition of Protein Kinase Activity

[0415] Agonists or antagonists of PKIN activation or inhibition maybe tested using assays described in section XVIII. Agonists cause an increase in PKIN activity and antagonists cause a decrease in PKIN activity.

[0416] Various modifications and variations of the described methods and systems of the invention will be apparent to those skilled in the art without departing from the scope and spirit of the invention. Although the invention has been described in connection with certain embodiments, it should be understood that the invention as claimed should not be unduly limited to such specific embodiments. Indeed, various modifications of the described modes for carrying out the invention which are obvious to those skilled in molecular biology or related fields are intended to be within the scope of the following claims.

TABLE 1
			Poly-	Incyte
Incyte	Polypeptide	Incyte	nucleotide	Polynucleotide
Project ID	SEQ ID NO:	Polypeptide ID	SEQ ID NO:	ID
2763993	1	2763993CD1	16	2763993CB1
3684162	2	3684162CD1	17	3684162CB1
3736769	3	3736769CD1	18	3736769CB1
7474632	4	7474632CD1	19	7474632CB1
7472696	5	7472696CD1	20	7472696CB1
7472343	6	7472343CD1	21	7472343CB1
7480783	7	7480783CD1	22	7480783CB1
7477063	8	7477063CD1	23	7477063CB1
7475394	9	7475394CD1	24	7475394CB1
7482884	10	7482884CD1	25	7482884CB1
7494121	11	7494121CD1	26	7494121CB1
6793486	12	6793486CD1	27	6793486CB1
7494178	13	7494178CD1	28	7494178CB1
7096516	14	7096516CD1	29	7096516CB1
7474666	15	7474666CD1	30	7474666CB1

[0417]

TABLE 2
		GenBank ID NO:	Pro-
Polypeptide SEQ	Incyte	or PROTEOME	bability
ID NO:	Polypeptide ID	ID NO:	Score	Annotation
1	2763993CD1	g15215576	0.0	BMP-2 inducible kinase Mus musculus
				Kearns, A. E. et al. (2001) Cloning and Characterization of a Novel Protein Kinase
				That Impairs Osteoblast Differentiation in Vitro. J. Biol. Chem. 276: 42213-42218
2	3684162CD1	g23903	2.4E-271	Homo sapiens 63 kDa protein kinase
				Gonzalez, F. A. et al., (1992)FEBS Lett. 304: 170-178
3	3736769CD1	g9664225	3.7E-27	Homo sapiens FUSED serine/threonine kinase
				Murone, M. , et al. (2000)Nat. Cell Biol. 2: 310-312
4	7474632CD1	g1304387	1.0E-14	Saccharomyces cerevisiaevar. diastaticus glucoamylase
				Lambrechts, M. G., et al. (1996)Proc. Natl. Acad. Sci. U.S.A. 93: 8419-8424
5	7472696CD1	g14571717	1.0E-124	myosin light chain kinase (MLCK) Homo sapiens
6	7472343CD1	g11907599	3.5E-87	Homo sapiens protein kinase HIPK2
				Wang, Y. et al., (2001) Biochim. Biophys. Acta 1518: 168-172
7	7480783CD1	g4884492	0.0	Rattus norvegicus SCOP
				Shimizu, K. et al. (1999) SCOP, a novel gene product expressed in a circadian
				manner in rat suprachiasmatic nucleus. FEBS Lett. 458: 363-369
8	7477063CD1	g4115429	9.2E-48	Rattus norvegicus serine/threonine protein kinase
9	7475394CD1	g12005724	6.9E-250	Homo sapiens mixed lineage kinase MLK1
10	7482884CD1	g8918488	8.1E-33	Rattus norvegicus adenylate kinase isozyme 1
11	7494121CD1	g17385401	0.0	TPIP alpha lipid phosphatase Homo sapiens
				Walker, S. M. et al. (2001) TPIP: a novel phosphoinositide 3-phosphatase.
				Biochem. J. 360: 277-283
12	6793486CD1	g5757703	0.0	Mus musculus syntrophin-associated serine-threonine protein kinase
				Lumeng, C. et al. (1999) Interactions between beta 2 syntrophin and a family of
				microtubule-associated serine/threonine kinases. Nat. Neurosci. 2: 611-617
13	7494178CD1	g7768151	4.4E12	Fagus sylvatica protein phosphatase 2C (PP2C)
				Lorenzo, O. et al. (2001) Plant Physiol. 125: 1949-1956
	7494178CD1	g12850332	6.0E94	Protein phosphatase 2C containing proteindata source: Pfam, source
				key: PF00481, evidence: ISSputative Mus musculus
				Carninci, P. and Hayashizaki, Y. (1999) High-efficiency full-length cDNA cloning.
				Meth. Enzymol. 303: 19-44
14	7096516CD1	g1457961	0.0	Mus musculus receptor tyrosine kinase
				Lee, A. M. et al. (1996) DNA Cell Biol. 15, 817-825
15	7474666CD1	g6688201	9.3E261	Homo sapiens AMP-activated protein kinase gamma 3 subunit
				Cheung, P. C. et al. (2000) Biochem J. 346: 659-669

[0418]

TABLE 3
		Amino
SEQ	Incyte	Acid	Potential	Potential		Analytical
ID	Polypeptide	Resi-	Phosphorylation	Glycosylation		Methods
NO:	ID	dues	Sites	Sites	Signature Sequences, Domains and Motifs	and Databases
1	2763993CD1	1161	S5 S56 S118 S228	N277 N329 N330	Eukaryotic protein kinase domain: V51-F314	HMMER_PFAM
			S567 S599 S650	N597 N608 N614
			S659 S728 S740	N631 N703
			S742 S750 S753	N1044
			S754 S791 S802
			S804 S904 S945
			S949 S979 S1003
			S1029 S1031 S1064
			T52 T151 T203
			T225 T244 T245
			T279 T342 T588
			T636 T723 T777
			T850 T944 T985
			T1004 T1007
			T1011 T1037 Y806
					Transmembrane domain: M234-K258	TMAP
					N-terminus is cytosolic
					Tyrosine kinase catalytic domain signature PR00109:	BLIMPS
					H170-L188, A247-S269, Y286-I308	PRINTS
					PROTEIN KINASE DOMAIN DM00004P5397423-288:	BLAST_DOMO
					L57-I308
					PROTEIN KINASE DOMAIN DM00004P4049423-287:	BLAST_DOMO
					L57-I308
					PROTEIN KINASE DOMAIN DM00004P3808036-309:	BLAST_DOMO
					G72-I308
					PROTEIN KINASE DOMAIN DM00004P5052843-286:	BLAST_DOMO
					E55-I308
					Serine/Threonine protein kinases active-site signature:	MOTIFS
					I176-L188
2	3684162CD1	587	S36 S58 S158 S180	N205 N343	Eukaryotic protein kinase domain: F20-M312	HMMER_PFAM
			S196 S266 S316
			S348 S354 S363
			S401 S403 S405
			S414 S436 S519
			T120 T224 T551
			Y179 Y424
					Transmembrane domain: K208-F229	TMAP
					N-terminus is cytosolic
					Protein kinases signatures and profile: H125-H178	PROFILESCAN
					Tyrosine kinase catalytic domain signature PR00109:	BLIMPS
					Y139-I157, I210-A232	PRINTS
					EXTRACELLULAR SIGNAL REGULATED	BLAST
					KINASE TRANSFERASE SERINE/THREONINE	PRODOM
					PROTEIN ATP-BINDING CELL CYCLE ERK3
					MAP PD023511: M312-A494
					KINASE TRANSFERASE PROTEIN	BLAST
					SERINE/THREONINE PROTEIN ATP-BINDING II	PRODOM
					PHOSPHORYLATION CASEIN ALPHA CHAIN
					PD002608: H181-S313
					KINASE PROTEIN TRANSFERASE ATP-	BLAST
					BINDING SERINE/THREONINE PROTEIN	PRODOM
					PHOSPHORYLATION RECEPTOR TYROSINE
					PROTEIN PRECURSOR TRANSMEMBRANE
					PD000001: Y184-Y311, V100-R173
					PROTEIN KINASE DOMAIN DM00004P3115221-302:	BLAST_DOMO
					V21-A303
					PROTEIN KINASE DOMAIN DM00004P2770421-306:	BLAST_DOMO
					V21-A303
					PROTEIN KINASE DOMAIN DM00004A5635221-306:	BLAST_DOMO
					V21-A303
					do KINASE; SERINE; ATP; THREONINE;	BLAST_DOMO
					DM03966P31152357-534: Y357-Q536
					Protein kinases ATP-binding region signature L26-K49	MOTIFS
					Serine/Threonine protein kinases active-site signature:	MOTIFS
					V145-I157
3	3736769CD1	1275	S82 S123 S174	N355 N827	Eukaryotic protein kinase domain: F4-W280	HMMER_PFAM
			S214 S223 S244
			S291 S292 S335
			S348 S362 S376
			S401 S470 S659
			S663 S783 S794
			S829 S909 S951
			S1067 S1110 S1137
			S1176 S1209 S1236
			S1256 T26 T35
			T60 T134 T186
			T228 T270 T366
			T371 T415 T475
			T577 T587 T787
			T889 T898 T927
			T1208 T1228
					Transmembrane domain: S701-Q725, T736-R764,	TMAP
					E902-R925, N1100-L1128
					N-terminus is cytosolic
					Tyrosine kinase catalytic domain signature PR00109:	BLIMPS
					H111-L129, S200-E222, A249-W271, V75-A88	PRINTS
					PROTEIN KINASE DOMAIN DM00004P54644122-362:	BLAST_DOMO
					G181-L269
					PROTEIN KINASE DOMAIN DM00004P28178155-393:	BLAST_DOMO
					G181-L269
					PROTEIN KINASE DOMAIN DM00004P5335515-257:	BLAST_DOMO
					E8-L129
					PROTEIN KINASE DOMAIN DM00004P34885380-621:	BLAST_DOMO
					E168-L269
4	7474632CD1	1406	S11 S29 S135 S181	N103 N667 N727	Eukaryotic protein kinase domain: E1119-H1155,	HMMER_PFAM
			S202 S206 S234	N848 N944 N988	G1258-C1327
			S255 S329 S416
			S491 S524 S532
			S598 S619 S706
			S729 S731 S747
			S786 S800 S826
			S837 S844 S850
			S877 S946 S1064
			S1399 T147 T287
			T407 T417 T769
			T1012 T1099
			T1342
					Tyrosine protein kinases specific active-site signature:	MOTIFS
					I1141-L1153
5	7472696CD1	463	S90 S172 S237	N263	signal_cleavage: M1-A25	SPSCAN
			S412 S416 S454
			T112 T159 T265
			Y262
					Eukaryotic protein kinase domain: V171-L426	HMMER_PFAM
					Transmembrane domain: V345-P367	TMAP
					N-terminus is non-cytosolic
					Tyrosine kinase catalytic domain signature PR00109:	BLIMPS
					M245-I258, H282-C300, T349-D371	PRINTS
					Phosphorylase kinase family signature PR01049:	BLIMPS
					D259-I280, S418-H429, R317-P332	PRINTS
					KINASE PROTEIN TRANSFERASE ATP-	BLAST
					BINDING SERINE/THREONINE PROTEIN	PRODOM
					PHOSPHORYLATION RECEPTOR TYROSINE
					PROTEIN PRECURSOR TRANSMEMBRANE
					PD000001: P332-S427, E260-R317, Y169-D249
					PROTEIN KINASE DOMAIN DM00004P07313298-541:	BLAST_DOMO
					E175-A417
					PROTEIN KINASE DOMAIN	BLAST_DOMO
					DM00004JN0583727-969: E175-S416
					PROTEIN KINASE DOMAIN	BLAST_DOMO
					DM00004S075715152-5396: E175-S416
					PROTEIN KINASE DOMAIN DM00004P5335515-257:	BLAST_DOMO
					E175-S416
					Protein kinases ATP-binding region signature: L177-K200	MOTIFS
					Serine/Threonine protein kinases active-site signature:	MOTIFS
					I288-C300
6	7472343CD1	565	S6 S32 S265 S319	N500 N550	Eukaryotic protein kinase domain: E322-V347	HMMER_PFAM
			S354 S365 S368
			S433 S469 S479
			S495 S511 S521
			S522 S562 T21 T33
			T304 Y283 Y361
					Transmembrane domain: H71-V88	TMAP
					N-terminus is non-cytosolic
					Tyrosine kinase catalytic domain signature PR00109:	BLIMPS
					R126-L144, V196-N218	PRINTS
					KINASE TRANSFERASE PROTEIN	BLAST
					SERINE/THREONINE PROTEIN ATP-BINDING II	PRODOM
					PHOSPHORYLATION CASEIN ALPHA CHAIN
					PD002608: Y170-P234, V321-F346
					PROTEIN KINASE NUCLEAR	BLAST
					SERINE/THREONINE PROTEIN	PRODOM
					HOMEODOMAIN INTERACTING HOMEOBOX
					DNA-BINDING SERINE/THREONINE F20B6.8
					PD042899: L239-H360
					PROTEIN KINASE DOMAIN	BLAST_DOMO
					DM00004Q09815519-804: D12-K274, S301-S337
					PROTEIN KINASE DOMAIN DM00004P14680371-694:	BLAST_DOMO
					I13-Y283
					PROTEIN KINASE DOMAIN	BLAST_DOMO
					DM00004Q09690700-985: D12-P255, S319-P338
					PROTEIN KINASE DOMAIN DM00004P49657101-409:	BLAST_DOMO
					I13-P338
					Protein kinases ATP-binding region signature: L17-K40	MOTIFS
					Serine/Threonine protein kinases active-site signature:	MOTIFS
					I132-L144
7	7480783CD1	1319	S28 S91 S181 S244	N301 N324 N375	Leucine Rich Repeat: Q365-T387, Q710-P731, L499-	HMMER_PFAM
			S248 S256 S477	N596 N670 N698	A520, Q296-S318, R688-P709, T733-T759, S477-S498,
			S485 S545 S717	N844 N1137	R246-D269, M617-L640, N342-Q364, Q665-K687,
			S803 S842 S856	N1157 N1238	K522-S545, P567-L590, H436-E459, T319-L341,
			S988 S1081 S1115		H641-E664, N591-E613
			S1145 S1159 S1237
			S1297 T9 T123
			T187 T228 T319
			T355 T387 T438
			T448 T501 T561
			T610 T733 T760
			T830 T970 T1056
			T1092 T1262
			T1269 Y989
					Protein phosphatase 2C: G868-V1022	HMMER_PFAM
					Leucine-rich repeat signature: PR00019: L568-L581,	BLIMPS
					L663-L676	PRINTS
					PROTEIN PHOSPHATASE 2C:	BLAST_DOMO
					DM00377P496061686-2009: K866-E1033
					PROTEIN PHOSPHATASE 2C:	BLAST_DOMO
					DM00377P4037167-332: W780-L1029, S756-G817
					Leucine zipper pattern: L571-L592	MOTIFS
8	7477063CD1	414	S93 S380 S389	N58	Signal Peptide: M9-A39, M9-G38	HMMER
			S390 T62 T85
			T165 T242 T315
			T407
					Protein kinase domain: Y98-R349	HMMER_PFAM
					Transmembrane domain: T271-D298	TMAP
					Protein kinases signatures and profile	PROFILESCAN
					protein_kinase_tyr: L194-T249
					Tyrosine kinase catalytic domain signature PR00109:	BLIMPS
					Q173-Q186, F208-V226, V278-A300	PRINTS
					YABT PROTEIN PD102837: L114-V226	BLAST
						PRODOM
					PROTEIN KINASE DOMAIN DM00004	BLAST_DOMO
					P24723356-597: I101-F288
					JC144620-261: R102-R349
					P09217254-502: L100-R349
					Q05513246-494: L100-R349
					Gram-positive cocci surface proteins anchoring	MOTIFS
					hexapeptide L43-A48
					Protein kinases ATP-binding region signature L104-K127	MOTIFS
					Serine/Threonine protein kinases active-site signature	MOTIFS
					L214-V226
9	7475394CD1	1036	S58 S75 S167 S416	N282 N538 N565	SH3 domain: G41-C100	HMMER_PFAM
			S441 S455 S536
			S564 S643 S688
			S770 S808 S845
			S882 S932 S937
			S949 S952 S998
			S1026 T284 T299
			T368 T399 T560
			T719 T783 T893
			T1022 Y330 Y724
					Protein kinase domain: L124-L398	HMMER_PFAM
					Transmembrane domain: P343-T362 Q715-H743	TMAP
					Receptor tyrosine kinase	BLIMPS
					BL00239: E171-A218, L237-I259, W296-R345,	BLOCKS
					L350-I394
					BL00240: P116-A164, E295-V342, V342-I394
					BL00790: Q144-C197, S303-W335, L361-M409
					Protein kinases signatures and profile	PROFILESCAN
					protein_kinase_tyr.prf: L237-T299
					Tyrosine kinase catalytic domain signature PR00109:	BLIMPS
					L200-A213, E253-L271, G306-I316, S325-I347,	PRINTS
					C369-F391
					SH3 domain signature PR00452: G41-A51, D55-Q70,	BLIMPS
					D77-Q86, R88-C100	PRINTS
					KINASE DOMAIN SH3 MIXED LINEAGE	BLAST
					SERINE/THREONINE WITH LEUCINE ZIPPER	PRODOM
					PROLINE PD024997: I401-D819
					KINASE PROTEIN TRANSFERASE ATP-	BLAST
					BINDING SERINE/THREONINE PROTEIN	PRODOM
					PHOSPHORYLATION RECEPTOR TYROSINE
					PROTEIN PRECURSOR TRANSMEMBRANE
					PD000001: L237-A312, A120-F202, W310-Y344,
					K360-E396
					PROTEIN KINASE DOMAIN DM00004	BLAST_DOMO
					A53800119-368: L126-F391
					I38044100-349: L126-F391
					ZIPPER MOTIF LEUCINE DM08113	BLAST_DOMO
					I38044392-721: R433-P776, R433-E750
					A53800411-846: R433-P805, R433-G846, P919-D955
					Protein kinases ATP-binding region signature I130-K151	MOTIFS
					Serine/Threonine protein kinases active-site signature	MOTIFS
					I259-L271
10	7482884CD1	293	S25 S60 S66 S79		Signal peptide: M1-G63	SPSCAN
			S93 S98 S146 S247
			S265 T105 T115
			T188 T263 Y226
					Adenylate kinase: V54-L211	HMMER_PFAM
					Adenylate kinase protein BL00113: L53-I69, S79-K122,	BLIMPS
					P127-V141, Q178-E208	BLOCKS
					Adenylate kinase signature: P111-A163	PROFILESCAN
					Adenylate kinase signature PR00094: I132-E148,	BLIMPS
					R180-F195, Q197-L211, L53-S66, G81-R95	PRINTS
					Adenylate kinase, transferase, ATP-binding,	BLAST
					transphosphorylase: PD000657: V54-R174, G179-L211	PRODOM
					Adenylate kinase DM00290:	BLAST_DOMO
					P005701-131: R48-R174
					P121151-130: K50-R174
					P1570014-141: I51-R174
					JC41811-133: R48-R174
					Adenylate kinase signature: I132-Q143	MOTIFS
11	7494121CD1	550	S64 S224 S254	N375 N450 N499	Transmembrane Segments: H86-I114 E125-Q152	TMAP
			S286 S379 S423		L157-R185 L194-R221 G340-Y368
			T231 T243 T361		N-terminus is noncytosolic
			T374 T459 T541
					Tyrosine specific protein phosphatases signature and	PROFILESCAN
					profiles tyr_phosphatase.prf: V316-E371
					PROTEIN HYDROLASE PHOSPHATASE	BLAST
					MULTIPLE ADVANCED CANCERS	PRODOM
					PHOSPHORYLATION TENSIN
					PROTEINTYROSINE PTEN PD007685: L218-S286
					PROTEIN PHOSPHORYLATION AUXILIN COAT	BLAST
					REPEAT KIAA0473 CYCLIN G-ASSOCIATED	PRODOM
					KINASE TRANSFERASE PD025411: S286-V400
					Cell attachment sequence R425-D427	MOTIFS
					Tyrosine specific protein phosphatases active site	MOTIFS
					I336-M348
12	6793486CD1	1547	S28 S32 S60 S64	N11 N1056	PDZ (membrane-associated) domain (Also known as	HMMER_PFAM
			S80 S81 S90 S113	N1115	DHR or GLGF): P967-F1054
			S142 S169 S362
			S668 S673 S679
			S687 S708 S716
			S722 S735 S736
			S741 S773 S777
			S782 S799 S849
			S903 S938 S947
			S973 S1058 S1068
			S1081 S1088 S1092
			S1093 S1119 S1140
			S1143 S1184 S1193
			S1263 S1283 S1287
			S1333 S1402 S1446
			S1477 T126 T144
			T376 T427 T443
			T591 T677 T693
			T694 T760 T842
			T856 T980 T1052
			T1099 T1107
			T1397 T1521
			T1535 Y1149
					Protein kinase domain: F374-F647	HMMER_PFAM
					Protein kinase C terminal domain: R648-D676	HMMER_PFAM
					Transmembrane segments: E205-T233 D569-F587	TMAP
					N-terminus cytosolic
					Tyrosine kinase catalytic domain signature PR00109:	BLIMPS
					M451-K464, Y487-I505, V568-D590	PRINTS
					Octicosapeptide repeat protein PF00564: F374-F428,	BLIMPS_PFAM
					F438-L488
					MICROTUBULE ASSOCIATED TESTIS SPECIFIC	BLAST
					SERINE/THREONINE PROTEIN KINASE	PRODOM
					MAST205
					PD135564: S13-Y182
					PD182663: P740-H1002
					PD069998: T1050-Y1149
					PD041650: K183-D373
					PROTEIN KINASE DOMAIN DM00004	BLAST_DOMO
					A54602455-712: T376-G634
					S4286775-498: I377-T528, H534-F675, D863-Q890
					P43565796-1240: I377-M524, D544-G634, S1117-
					S1235, P1080-P1128
					P059861-397: N372-K520, V547-D691
					Serine/Threonine protein kinases active-site signature	MOTIFS
					I493-I505
13	7494178CD1	505	S93 S222 S387	N345	Protein phosphatase 2C: F157-R295, V379-A449	HMMER_PFAM
			S448 S487 T97
			T301 T322 T413
			T435 T472 Y415
					Transmembrane segments: V256-I284	TMAP
					N-terminus is non-cytosolic
					Protein phosphatase 2C p BL01032: S487-I496, Y153-	BLIMPS
					G162, L231-A248, R372-D385, D420-D432	BLOCKS
					C42C1.2 PROTEIN PD140721: V274-K370, R145-E355,	BLAST
					R22-V128	PRODOM
					PROTEIN PHOSPHATASE 2C MAGNESIUM	BLAST
					HYDROLASE MANGANESE MULTIGENE	PRODOM
					FAMILY PP2C ISOFORM PD001101: G366-S448,
					Q217-G310, F151-L181
					PROTEIN PHOSPHATASE 2C DM00377	BLAST_DOMO
					P495961-295: S222-G310, R372-S448, Y153-E186
					P4959888-398: A371-L467, K224-G310, Y152-K182
					P369931-304: R372-V443, S222-G310, Y153-I177
					S397811-304: R372-V443, S222-G310, Y153-I177
14	7096516CD1	1036	S199 S228 S239	N343 N397 N410	Ephrin receptor ligand binding domain: Q34-C207	HMMER_PFAM
			S377 S427 S492	N756
			S527 S647 S854
			S855 S871 S881
			S888 S928 S953
			S972 S997 T61
			T107 T120 T146
			T158 T210 T245
			T267 T302 T438
			T534 T572 T605
			T611 T664 T700
			T843 T942 T965
			T988 T1021 Y490
			Y612 Y794
					SAM domain (Sterile alpha motif): E959-R1023	HMMER_PFAM
					Fibronectin type III domain: Q440-S527, P332-S425	HMMER_PFAM
					Protein kinase domain: I631-V927	HMMER_PFAM
					Transmembrane domain: V6-P24 E180-Y204 G546-R574	TMAP
					N691-R718 K765-G793
					N-terminus is non-cytosolic.
					Receptor tyrosine kinase BL00239: G638-S647, E680-	BLIMPS
					A727, L775-R797, A800-D825, E828-Y877, N882-I926	BLOCKS
					BL00240: H669-N723, Q774-V811, P827-E874,
					E874-I926BL00790: Q34-N55, D64-P115, K168-I221,
					P246-E270, C276-P323, I342-I368, C379-S422,
					S458-K483, G504-T534, P601-G640, P653-A706,
					L759-M778, L779-A800, A801-P827, G835-W867,
					E868-G892, Y893-H941, F982-H1025
					Protein kinases signatures and profile	PROFILESCAN
					protein_kinase_tyr.prf: Q774-P827
					Tyrosine kinase catalytic domain signature PR00109:	BLIMPS
					V751-R764, Y788-V806, I838-I848, S857-E879,	PRINTS
					C901-F923
					KINASE RECEPTOR PRECURSOR TYROSINE	BLAST
					PROTEIN EPHRIN TRANSFERASE ATP	PRODOM
					BINDING PHOSPHORYLATION
					TRANSMEMBRANE GLYCOPROTEIN
					PD001495: L37-C207
					PD001679: K529-I631
					PD149648: P208-R280
					EPH FAMILY PROTEIN PD002683: P332-D441	BLAST
						PRODOM
					RECEPTOR TYROSINE KINASE CLASS V	BLAST_DOMO
					DM00501
					P5475835-381: V36-G383
					P2932031-376: L37-C382
					P2931830-375: L37-C382
					PROTEIN KINASE DOMAIN DM00004P54758632-920:	BLAST_DOMO
					I633-K922
					EGF-like domain signature 2 C263-C276	MOTIFS
					Protein kinases ATP-binding region signature I637-K663	MOTIFS
					Tyrosine protein kinases specific active-site signature	MOTIFS
					Y794-V806
					Receptor tyrosine kinase class V signature 1 F188-P208	MOTIFS
					Receptor tyrosine kinase class V signature 2 C250-E270	MOTIFS
15	7474666CD1	489	S27 S44 S46 S65	N33 N290	CBS domain: Q278-H332, T425-V478, I353-A406,	HMMER_PFAM
			S128 S129 S200		M197-H251
			S232 S236 S288
			S292 S381 S397
			S416 S439 S469
			T87 T112 T192
			T208 T242 T271
			T323 T347 T355
			T370 Y194
					Transmembrane domain: V204-A226	TMAP
					PROTEIN KINASE REPEAT CBS DOMAIN 5AMP	BLAST
					ACTIVATED GAMMA1 SUBUNIT AMPK CHAIN	PRODOM
					PD010762: Q182-F281
					PROTEIN SIMILAR AMP ACTIVATED KINASE	BLAST
					R53.7 PD156234: L284-P481	PRODOM
					GAMMA-1; CAT3; KINASE; ACTIVATED;	BLAST_DOMO
					DM07032
					P546191-330: I183-S480
					P129041-321: R186-L479

[0419]

TABLE 4
Polynucleotide SEQ ID
NO:/ Incyte ID/Sequence
Length	Sequence Fragments
16/2763993CB1/	1-403, 298-883, 370-607, 370-868, 469-929, 535-1124, 552-800, 611-1116, 674-751, 750-884, 772-1067, 797-1067,
4188	838-1077, 885-1163, 1021-1468, 1035-1231, 1066-1231, 1091-1382, 1114-1352, 1114-1374, 1151-1667, 1151-1789,
	1167-1231, 1186-1430, 1186-1950, 1192-1418, 1232-1299, 1232-1457, 1232-1470, 1232-1532, 1232-1950,
	1258-1527, 1260-1375, 1276-1934, 1277-1554, 1352-1798, 1352-1801, 1352-1889, 1352-1936, 1392-1927, 1431-1722,
	1431-1724, 1433-1755, 1469-1724, 1508-1753, 1514-1869, 1521-1671, 1609-1682, 1609-1685, 1640-1931,
	1640-1951, 1647-2298, 1758-1921, 1847-2063, 2063-2502, 2082-2324, 2139-2624, 2160-2617, 2169-2413, 2171-2595,
	2197-2617, 2198-2617, 2227-2406, 2489-2758, 2520-2795, 2688-3095, 2804-3157, 2828-3287, 2856-3114,
	2856-3342, 2881-3138, 2881-3491, 2941-3226, 3022-3649, 3060-3603, 3067-3342, 3144-3656, 3158-3593, 3211-3640,
	3223-3656, 3263-3446, 3304-3742, 3332-3522, 3341-4188, 3379-3670, 3571-3806
17/3684162CB1/	1-417, 1-453, 1-480, 1-543, 1-605, 1-620, 9-538, 11-446, 31-478, 34-358, 35-454, 37-551, 39-502, 132-401, 132-651,
4675	148-684, 189-689, 206-689, 209-689, 396-855, 431-4648, 525-792, 525-910, 668-941, 668-973, 668-1086, 668-1213,
	668-1289, 668-1372, 696-1339, 701-1320, 714-1237, 827-1350, 836-1457, 855-1382, 967-1626, 977-1278,
	1016-1665, 1034-1568, 1146-1613, 1241-1824, 1254-1789, 1271-1637, 1273-1921, 1280-2017, 1295-1794, 1314-1893,
	1321-1893, 1336-1929, 1341-1941, 1349-1794, 1357-1904, 1360-1957, 1394-1942, 1404-1930, 1405-2071,
	1413-2096, 1426-2029, 1426-2055, 1460-1991, 1471-2053, 1477-2170, 1513-2126, 1566-2107, 1581-2255, 1586-2129,
	1604-2285, 1605-2206, 1622-2154, 1634-1888, 1656-2149, 1690-2299, 1700-2333, 1707-2231, 1711-2120,
	1802-2212, 1825-2346, 1871-2401, 1871-2450, 1873-2401, 1936-2471, 1938-2248, 1968-2475, 2026-2759, 2086-2761,
	2102-2466, 2107-2761, 2124-2761, 2151-2741, 2188-2761, 2193-2761, 2206-2761, 2224-2759, 2224-2761,
	2258-2761,
	2271-2729, 2275-2729, 2310-2442, 2316-2759, 2317-2729, 2320-2742, 2323-2732, 2324-2634, 2329-2759, 2353-2727,
	2376-2759, 2377-2761, 2385-2760, 2409-2729, 2422-2729, 2446-2760, 2580-2761, 2581-2761, 2766-3050,
	2766-3108, 2766-3214, 2766-3220, 2766-3224, 2766-3233, 2767-3246, 2793-3115, 2800-3045, 2824-3115, 2837-3093,
	2855-3490, 2865-3134, 2929-3317, 2937-3499, 2944-3499, 2951-3635, 2983-3574, 3000-3289, 3010-3341,
	3010-3624, 3021-3256, 3034-3609, 3062-3494, 3067-3342, 3076-3643, 3123-3403, 3192-3783, 3214-3466, 3230-3797,
	3235-3460, 3235-3566, 3235-3677, 3235-3698, 3256-3521, 3256-3533, 3259-3640, 3280-3479, 3283-3567,
	3287-3861, 3302-3622, 3303-3555, 3310-3601, 3338-3577, 3338-3590, 3338-3864, 3346-3616, 3357-3759, 3382-3976,
	3384-3630, 3422-3708, 3426-3998, 3461-3738, 3478-3741, 3578-3820, 3609-3877, 3612-4053, 3612-4154,
	3644-3934, 3721-3966, 3721-3989, 3723-3981, 3723-4232, 3726-4269, 3741-3958, 3754-4040, 3773-4284, 3774-4006,
	3774-4007, 3774-4305, 3783-4056, 3814-4056, 3814-4074, 3825-4102, 3825-4613, 3836-4500, 3837-4168,
	3890-4454, 3893-4171, 3897-4539, 3903-4190, 3911-4135, 3924-4187, 3924-4227, 3931-4590, 3980-4463, 3980-4607,
	3984-4273, 3990-4532, 4000-4602, 4008-4668, 4014-4640, 4035-4640, 4037-4275, 4083-4614, 4087-4642,
	4099-4644, 4125-4640, 4138-4650, 4155-4610, 4162-4446, 4189-4668, 4191-4651, 4192-4651, 4195-4440, 4200-4675,
	4209-4670, 4211-4453, 4217-4670, 4218-4660, 4225-4646, 4228-4484, 4230-4648, 4239-4474, 4258-4646,
	4265-4651, 4277-4670, 4292-4650, 4297-4557, 4300-4648, 4303-4655, 4314-4559, 4314-4576, 4317-4651, 4332-4670,
	4347-4650, 4347-4668, 4349-4648, 4356-4650, 4371-4635, 4394-4651, 4394-4665, 4397-4663, 4425-4651
18/3736769CB1/	1-273, 89-549, 89-716, 102-476, 112-631, 116-380, 117-560, 117-676, 118-781, 125-402, 150-439, 167-487, 172-475,
4407	189-764, 247-475, 473-520, 497-532, 497-675, 628-782, 693-957, 693-1195, 693-1277, 799-1200, 1040-1624,
	1282-1746, 1318-1422, 1365-1892, 1416-1458, 1557-1892, 1565-1892, 1567-1886, 1576-1858, 1590-1892, 1618-1892,
	1619-2004, 1674-1892, 1748-1892, 1813-2087, 1893-2557, 1893-2870, 2022-2087, 2558-2870, 2619-3213,
	2652-2881, 2652-3170, 2665-3222, 2913-3255, 2948-3018, 2962-3225, 3034-3323, 3063-3307, 3069-3516, 3115-3671,
	3118-3674, 3130-3354, 3130-3516, 3130-3685, 3131-3358, 3329-3831, 3430-3690, 3436-3811, 3459-3707,
	3465-3683, 3465-3977, 3495-3768, 3566-4198, 3609-4128, 3610-4182, 3622-4186, 3692-4194, 3758-4198, 3759-4061,
	3759-4068, 3759-4116, 3759-4180, 3759-4187, 3759-4211, 3759-4278, 3759-4307, 3759-4316, 3759-4337,
	3759-4353, 3759-4363, 3772-4386, 3773-4185, 3780-4198, 3799-4366, 3803-4198,
	3819-4396, 3834-4196, 3840-4316, 3841-4296, 3860-4362, 3878-4397, 3914-4000, 3915-4194, 3966-4407, 3983-4402,
	3986-4391, 4009-4401
19/7474632CB1/	1-290, 6-254, 111-685, 311-764, 516-1199, 729-1315, 816-1568, 1497-2185, 1530-1824, 1530-2009, 1530-2063,
4795	1530-2126, 1530-2129, 1530-2138, 1530-2164, 1530-2168, 1530-2170, 1530-2191, 1536-2190, 1648-2063, 1748-1825,
	1796-2466, 1796-2476, 1865-2476, 1973-2158, 1981-2655, 1982-2482, 2006-2512, 2016-2606, 2019-2616,
	2049-2627, 2086-2605, 2089-2650, 2104-2655, 2114-2655, 2125-2177, 2137-2616, 2145-2613, 2145-2632, 2164-2653,
	2164-2654, 2176-2794, 2256-2616, 2265-2401, 2282-2869, 2282-2921, 2301-2426, 2361-2482, 2361-2627,
	2467-2707, 2561-3240, 2665-3321, 2676-3279, 2689-3244, 2696-3321, 2754-3042, 2803-3089, 2811-3057, 2992-3233,
	3072-3271, 3095-3397, 3101-3376, 3234-3482, 3234-3543, 3312-3543, 3349-3951, 3721-3969, 3757-3980,
	3757-3993, 3757-4127, 3757-4327, 3759-4331, 3777-4044, 3803-4094, 3831-4229, 3862-4092, 3862-4115, 3862-4139,
	3862-4365, 3862-4422, 3900-3965, 3946-4157, 3948-4208, 3969-4215, 3969-4523, 3973-4558, 4045-4320,
	4080-4669, 4084-4374, 4105-4639, 4112-4349, 4130-4402, 4134-4633,
	4146-4781, 4154-4385, 4179-4617, 4202-4707, 4217-4794, 4220-4666, 4241-4713, 4256-4538, 4264-4496, 4264-4680,
	4264-4794, 4269-4795, 4283-4795, 4284-4538, 4284-4553, 4290-4526, 4311-4613, 4312-4795, 4361-4795
20/7472696CB1/	1-1888, 920-1813, 925-1032, 929-1780, 935-1032, 974-1032, 1032-1534, 1032-1810, 1032-1888, 1037-1729, 1228-1969,
2386	1348-1378, 1348-1408, 1348-1412, 1348-1417, 1348-1567, 1348-1575, 1348-1659, 1348-1662, 1348-1694,
	1348-1704, 1348-1713, 1348-1718, 1348-1734, 1348-1740, 1348-1746, 1348-1809, 1348-1810, 1348-1820, 1348-1833,
	1348-1842, 1348-1852, 1348-1857, 1348-1866, 1348-1871, 1348-1875, 1348-1892, 1348-1910, 1348-1913,
	1348-1917, 1348-1922, 1348-1926, 1348-1929, 1348-1940, 1348-1941, 1348-1948, 1348-1950, 1348-1954, 1348-1958,
	1348-1960, 1348-1964, 1348-1969, 1348-1972, 1348-1975, 1348-1977, 1348-1987, 1348-1993, 1348-2013,
	1348-2128, 1348-2131, 1348-2146, 1349-1810, 1350-1810, 1351-1969, 1352-1810, 1352-1858, 1352-1977, 1352-2103,
	1352-2119, 1352-2131, 1353-1809, 1357-1965, 1364-1969, 1377-1578, 1377-1780, 1377-1807, 1377-1809,
	1379-1449, 1379-1809, 1420-2338, 1429-1810, 1433-1810, 1434-1810, 1450-2375, 1471-1810, 1471-2062, 1531-2358,
	1539-2362, 1565-1810, 1596-1810, 1630-2360, 1632-1727, 1645-1810, 1646-2365, 1648-2365, 1653-1810,
	1659-2368, 1678-1800, 1720-1810, 1761-1810, 1761-2365, 1761-2386, 1780-1810, 1780-2380, 1780-2381, 1780-2382,
	1780-2384, 1788-1810, 1790-2368, 1798-2370, 1817-2365, 1858-2291, 1882-2386, 1896-2386, 1902-2368,
	1902-2386, 1912-2370, 1916-2368, 1923-2365, 1927-2365, 1938-2367, 1949-2386, 1978-2386, 1983-2386, 2001-2384,
	2023-2365, 2041-2365, 2130-2196, 2259-2365, 2266-2368, 2266-2370, 2266-2386, 2287-2353
21/7472343CB1/	1-438, 1-458, 1-480, 46-660, 70-619, 85-523, 116-497, 119-504, 186-976, 212-977, 251-977, 266-826, 282-833,
3269	305-735, 305-752, 354-785, 359-785, 359-977, 364-800, 393-665, 393-688, 406-977, 415-978, 416-975, 416-976, 418-
	977, 477-977, 505-977, 562-975, 935-1959, 945-1269, 949-1269, 1757-1946, 1757-1952, 1757-1959, 1757-1967,
	1757-2051, 1757-2061, 1757-2074, 1757-2085, 1757-2086, 1757-2088, 1757-2091, 1757-2120, 1757-2180, 1757-2266,
	1757-2267, 1757-2897, 1759-2432, 1761-2468, 1868-2271, 1871-2393, 1899-2512, 1909-2286, 1952-2628,
	1987-2603, 2077-2729, 2188-2884, 2214-2883, 2220-2517, 2231-2897, 2239-2897, 2243-2897, 2245-2897, 2256-2897,
	2260-2897, 2264-2897, 2319-2897, 2396-2897, 2601-2641, 2644-2897, 2646-2869, 2699-2739, 2765-2920,
	2765-3267, 2765-3269
22/7480783CB1/	1-625, 358-726, 381-1151, 414-726, 447-726, 1035-1553, 1053-1690, 1066-1152, 1076-1152, 1150-1254, 1150-1303,
4888	1150-1336, 1150-1544, 1228-1254, 1254-1443, 1440-1731, 1459-2146, 1459-2187, 1459-2209, 1459-2210,
	1998-2663, 2000-2544, 2000-2548, 2000-2558, 2000-2601, 2000-2631, 2000-2632, 2000-2661, 2000-2662, 2000-2663,
	2000-2702, 2000-2703, 2000-2711, 2000-2761, 2000-2790, 2000-2812, 2002-2788, 2002-2819, 2009-2105,
	2014-2814, 2022-2210, 2144-2210, 2152-2663, 2177-2620, 2182-2620, 2191-2771, 2237-3083, 2308-2368, 2406-3222,
	2418-2568, 2418-2594, 2418-2721, 2418-2790, 2418-2828, 2418-2834, 2458-3221, 2476-2834, 2539-2569,
	2540-3086, 2556-3117, 2604-4888, 2621-2814, 2621-2815, 2621-2819, 2621-2821, 2622-2821, 2623-2821, 2637-2834,
	2640-3454, 2660-2821, 2694-3554, 2740-3571, 2789-3576, 2824-3576, 2832-3576, 2833-3576, 2836-3576,
	2845-3576, 2857-3576, 2869-3576, 2870-3576, 2876-3576, 2885-3576, 2914-3576, 2917-3576, 2939-3508, 2939-3531,
	2980-3398, 3010-3576, 3013-3377, 3119-3573, 3125-3576,
	3650-4000, 3864-3991, 4055-4260, 4055-4363, 4055-4385, 4055-4590, 4059-4678, 4193-4725, 4405-4725
23/7477063CB1/	1-507, 388-861, 388-1507, 583-658, 583-861, 583-862, 583-1539, 658-1410, 659-861, 659-862, 659-1539, 861-2246,
2380	862-1410, 862-1539, 1166-1410, 1477-2315, 1477-2365, 1477-2368, 1477-2372, 1477-2380, 1487-2347, 1490-2372
24/7475394CB1/	1-805, 703-876, 703-938, 703-949, 703-954, 703-958, 703-1011, 703-1077, 703-1079, 739-1140, 740-897, 740-1035,
3111	740-1065, 740-1079, 740-1136, 740-1140, 741-1075, 741-1140, 742-1060, 742-1065, 743-938, 743-1072, 756-962,
	759-857, 759-1031, 759-1065, 759-1070, 759-1076, 759-1077, 759-1078, 759-1079, 759-1140, 760-958, 776-1065,
	923-1079, 974-1694, 975-1692, 986-1693, 986-1694, 988-1693, 992-1693, 1003-1694, 1017-1047, 1106-1692,
	1439-2172, 1489-2218, 1502-2093, 1518-2318, 1555-2316, 1604-2074, 1604-2330, 1604-2430, 1655-2355,
	1702-2355, 1758-2241, 1841-2355, 1883-2352, 1884-2355, 1954-2355, 1988-2355, 2183-2932, 2185-2926, 2352-2932,
	2506-2705, 2506-2963, 2506-3007, 2705-3111
25/7482884CB1/	1-601, 308-566, 472-522, 472-527, 472-529, 472-530, 472-533, 472-536, 472-537, 472-540, 472-541, 472-544, 472-
1372	558, 472-593, 474-541, 475-541, 476-541, 478-952, 478-982, 478-1198, 478-1235, 478-1238, 481-1106, 510-1227,
	510-1240, 510-1260, 510-1304, 510-1329, 510-1355, 510-1371, 510-1372, 528-924, 554-1189
26/7494121CB1/	1-714, 15-495, 15-506, 15-519, 15-522, 15-665, 15-669, 15-687, 15-708, 91-815, 115-224, 116-699, 117-224, 118-144,
1704	161-711, 161-980, 172-198, 197-224, 284-495, 285-441, 285-469, 285-484, 285-486, 285-495, 285-498, 286-1704,
	321-1156, 331-433, 331-486, 335-429, 335-430, 335-444, 335-461, 335-495, 336-495, 338-468, 338-491, 338-495,
	338-498, 339-495, 341-495, 355-495, 356-495, 357-495, 361-495, 362-495, 368-1041, 371-495, 373-495, 381-495,
	423-495, 432-495, 781-987, 847-987, 1081-1704, 1139-1330, 1407-1500
27/6793486CB1/	1-591, 477-678, 477-758, 511-593, 511-682, 511-5151, 594-682, 594-758, 727-1235, 759-998, 784-1390, 784-1391,
5563	789-1339, 820-1390, 837-1391, 838-998, 844-1410, 848-1391, 935-1424, 946-1487, 960-1588, 999-1074, 999-1284,
	1067-1564, 1067-1583, 1067-1621, 1067-1654, 1067-1655, 1067-1680, 1067-1686, 1067-1687, 1067-1691, 1067-1693,
	1067-1694, 1067-1695, 1073-1695, 1075-1284, 1075-1386, 1091-1692, 1093-1689, 1101-1695, 1118-1695,
	1157-1695, 1160-1695, 1256-1695, 1285-1386, 1285-1519, 1384-1784, 1384-1975, 1384-1988, 1384-2029, 1384-2071,
	1386-1910, 1386-2183, 1387-1519, 1387-1587, 1476-2297, 1486-2082, 1497-2084, 1520-1587, 1520-1667,
	1577-2117, 1588-1667, 1588-1876, 1597-2217, 1606-2037, 1660-2157, 1663-2346, 1668-2015, 1737-2421, 1806-2395,
	1833-2323, 1877-2015, 1877-2148, 1958-2539, 2014-2539, 2016-2148, 2095-2539, 2199-2733, 2199-2798,
	2219-2802, 2298-2539, 2315-2539, 2339-2539, 2406-2539, 2417-2539, 2417-2649, 2436-2560, 2540-2649, 2540-2732,
	2540-2802, 2650-2802, 2650-3076, 2803-3076, 2803-3283, 3009-3648, 3140-3745,
	3170-3871, 3238-3704, 3284-3513, 3284-3636, 3307-3881, 3327-3815, 3514-3636, 3514-3773, 3637-3996, 3774-3996,
	3774-4185, 3997-4185, 4186-5151, 4186-5154, 4459-5066, 4471-5193, 4543-5191, 4572-5174, 4607-5182,
	4609-5149, 4813-5563
28/7494178CB1/	1-724, 232-491, 286-509, 336-778, 336-989, 342-620, 400-975, 419-648, 431-956, 473-1016, 561-801, 561-1144,
1697	678-1506, 721-973, 873-1099, 876-1149, 913-1488, 944-1240, 964-1532, 971-1670, 1008-1261, 1008-1478, 1016-1592,
	1022-1265, 1048-1689, 1183-1680, 1294-1540, 1376-1497, 1376-1679, 1376-1697, 1492-1697
29/7096516CB1/	1-269, 1-270, 1-271, 1-272, 3-270, 77-270, 193-392, 207-323, 338-821, 338-1001, 434-933, 476-1095, 543-1358,
3280	618-1303, 839-1001, 949-1493, 957-1493, 1088-1493, 1093-1493, 1159-2093, 1494-1664, 1494-2093, 1776-2019,
	1822-2642, 1908-2305, 1908-2339, 1908-2395, 1908-2404, 1908-2425, 1908-2427, 1908-2472, 1908-2548, 1908-2563,
	1908-2564, 1908-2574, 1911-2568, 1928-2424, 1957-2424, 1957-2476, 1957-2695, 2060-2695, 2278-2999,
	2672-3015, 2880-3046, 2880-3210, 2906-3210, 3113-3280
30/7474666CB1/	1-722, 1-726, 1-791, 1-792, 1-806, 5-670, 7-522, 7-528, 7-538, 9-510, 9-540, 15-598, 18-502, 18-541, 57-696, 58-677,
2781	67-636, 210-879, 223-879, 232-879, 258-872, 287-879, 307-876, 354-876, 360-879, 367-879, 374-1197, 377-1197,
	418-1197, 423-1197, 482-879, 1043-1298, 1077-1352, 1079-1579, 1079-1584, 1079-1663, 1079-1696, 1079-1700,
	1079-1843, 1083-1710, 1092-1455, 1209-1794, 1264-1616, 1300-1718, 1424-1905, 1438-1966, 1465-1947,
	1475-2061, 1477-2014, 1486-2122, 1506-1879, 1514-1971, 1517-1776, 1517-2041, 1517-2056, 1517-2080, 1517-2132,
	1585-2179, 1587-2098, 1604-1997, 1614-2256, 1646-2332, 1651-2287, 1667-2339, 1681-2248, 1689-2239,
	1704-2248, 1713-2079, 1768-2302, 1797-2300, 1824-2494, 1827-2302, 1877-2453, 1877-2466, 1881-2298, 1886-2302,
	1896-2302, 1901-2302, 1920-2302, 1960-2506, 1999-2506, 2109-2476, 2163-2418, 2224-2781, 2234-2703

[0420]

TABLE 5
Polynucleotide SEQ
ID NO:	Incyte Project ID:	Representative Library
16	2763993CB1	KIDNTUT13
17	3684162CB1	BRAUNOR01
18	3736769CB1	LUNGNOT12
19	7474632CB1	NEURDNV02
21	7472343CB1	HIPONON02
22	7480783CB1	PROSUNJ01
24	7475394CB1	LIVRTUE01
25	7482884CB1	BRAHTDR03
26	7494121CB1	PROSNOT14
27	6793486CB1	BRABDIR01
28	7494178CB1	UTRSNOT01
29	7096516CB1	BRACDIR02
30	7474666CB1	BONRFET01

[0421]

TABLE 6
Library	Vector	Library Description
BONRFET01	pINCY	Library was constructed using RNA isolated from rib bone tissue removed from a Caucasian male fetus, who died from
		Patau's syndrome (trisomy 13) at 20-weeks' gestation.
BRABDIR01	pINCY	Library was constructed using RNA isolated from diseased cerebellum tissue removed from the brain of a 57-year-old
		Caucasian male, who died from a cerebrovascular accident. Patient history included Huntington's disease, emphysema,
		and tobacco abuse.
BRACDIR02	PCDNA2.1	This random primed library was constructed using RNA isolated from diseased corpus callosum tissue removed from a
		57-year-old Caucasian male who died from a cerebrovascular accident. Patient history included Huntington's
		disease and emphysema.
BRAHTDR03	PCDNA2.1	This random primed library was constructed using RNA isolated from archaecortex, anterior hippocampus tissue
		removed from a 55-year-old Caucasian female who died from cholangiocarcinoma. Pathology indicated mild meningeal
		fibrosis predominately over the convexities, scattered axonal spheroids in the white matter of the cingulate cortex
		and the thalamus, and a few scattered neurofibrillary tangles in the entorhinal cortex and the periaqueductal gray region.
		Pathology for the associated tumor tissue indicated well-differentiated cholangiocarcinoma of the liver with residual
		or relapsed tumor. Patient history included cholangiocarcinoma, post-operative Budd-Chiari syndrome, biliary ascites,
		hydrothorax, dehydration, malnutrition, oliguria and acute renal failure. Previous surgeries included cholecystectomy
		and resection of 85% of the liver.
BRAUNOR01	pINCY	This random primed library was constructed using RNA isolated from striatum, globus pallidus and posterior putamen
		tissue removed from an 81-year-old Caucasian female who died from a hemorrhage and ruptured thoracic aorta due to
		atherosclerosis. Pathology indicated moderate atherosclerosis involving the internal carotids, bilaterally; microscopic
		infarcts of the frontal cortex and hippocampus; and scattered diffuse amyloid plaques and neurofibrillary tangles,
		consistent with age. Grossly, the leptomeninges showed only mild thickening and hyalinization along the superior sagittal
		sinus. The remainder of the leptomeninges was thin and contained some congested blood vessels. Mild atrophy was
		found mostly in the frontal poles and lobes, and temporal lobes, bilaterally. Microscopically, there were pairs of
		Alzheimer type II astrocytes within the deep layers of the neocortex. There was increased satellitosis around neurons
		in the deep gray matter in the middle frontal cortex. The amygdala contained rare diffuse plaques and neurofibrillary
		tangles. The posterior hippocampus contained a microscopic area of cystic cavitation with hemosiderin-laden
		macrophages surrounded by reactive gliosis. Patient history included sepsis, cholangitis, post-operative atelectasis,
		pneumonia CAD, cardiomegaly due to left ventricular hypertrophy, splenomegaly, arteriolonephrosclerosis, nodular
		colloidal goiter, emphysema, CHF, hypothyroidism, and peripheral vascular disease.
HIPONON02	PSPORT1	This normalized hippocampus library was constructed from 1.13 M independent clones from a hippocampus tissue
		library. RNA was isolated from the hippocampus tissue of a 72-year-old Caucasian female who died from an intracranial
		bleed. Patient history included nose cancer, hypertension, and arthritis. The normalization and hybridization
		conditions were adapted from Soares et al. (PNAS (1994) 91: 9228).
KIDNTUT13	pINCY	Library was constructed using RNA isolated from kidney tumor tissue removed from a 51-year-old Caucasian female
		during a nephroureterectomy. Pathology indicated a grade 3 renal cell carcinoma. Patient history included depressive
		disorder, hypoglycemia, and uterine endometriosis. Family history included calculus of the kidney, colon cancer,
		and type II diabetes.
LIVRTUE01	PCDNA2.1	This 5 biased random primed library was constructed using RNA isolated from liver tumor tissue removed from a
		72-year-old Caucasian male during partial hepatectomy. Pathology indicated metastatic grade 2 (of 4) neuroendocrine
		carcinoma forming a mass. The patient presented with metastatic liver cancer. Patient history included benign
		hypertension, type I diabetes, prostatic hyperplasia, prostate cancer, alcohol abuse in remission, and tobacco abuse in
		remission. Previous surgeries included destruction of a pancreatic lesion, closed prostatic biopsy, transurethral
		prostatectomy, removal of bilateral testes and total splenectomy. Patient medications included Eulexin, Hytrin,
		Proscar, Ecotrin, and insulin. Family history included atherosclerotic coronary artery disease and acute
		myocardial infarction in the mother; atherosclerotic coronary artery disease and type II diabetes in the father.
LUNGNOT12	pINCY	Library was constructed using RNA isolated from lung tissue removed from a 78-year-old Caucasian male during a
		segmental lung resection and regional lymph node resection. Pathology indicated fibrosis pleura was puckered, but not
		invaded. Pathology for the associated tumor tissue indicated an invasive pulmonary grade 3 adenocarcinoma. Patient
		history included cerebrovascular disease, arteriosclerotic coronary artery disease, thrombophlebitis, chronic obstructive
		pulmonary disease, and asthma. Family history included intracranial hematoma, cerebrovascular disease, arteriosclerotic
		coronary artery disease, and type I diabetes.
NEURDNV02	PCR2-	Library was constructed using pooled cDNA from different donors. cDNA was generated using mRNA isolated from
	TOPOTA	pooled skeletal muscle tissue removed from ten 21 to 57-year-old Caucasian male and female donors who died from
		sudden death; from pooled thymus tissue removed from nine 18 to 32-year-old Caucasian male and female donors who
		died from sudden death; from pooled liver tissue removed from 32 Caucasian male and female fetuses who died at
		18-24 weeks gestation due to spontaneous abortion; from kidney tissue removed from 59 Caucasian male and female
		fetuses who died at 20-33 weeks gestation due to spontaneous abortion; and from brain tissue removed from a Caucasian
		male fetus who died at 23 weeks gestation due to fetal demise.
PROSNOT14	pINCY	Library was constructed using RNA isolated from diseased prostate tissue removed from a 60-year-old Caucasian male
		during radical prostatectomy and regional lymph node excision. Pathology indicated adenofibromatous hyperplasia.
		Pathology for the associated tumor tissue indicated an adenocarcinoma (Gleason grade 3 4). The patient presented with
		elevated prostate specific antigen (PSA). Patient history included a kidney cyst and hematuria. Family history included
		benign hypertension, cerebrovascular disease, and arteriosclerotic coronary artery disease.
PROSUNJ01	PIGEN	This random primed 5 cap isolated library was constructed using RNA isolated from an untreated LNCaP cell line,
		derived from prostate carcinoma with metastasis to the left supraclavicular lymph nodes, removed from a 50-year-old
		Caucasian male (Schering).
UTRSNOT01	PSPORT1	Library was constructed using RNA isolated from the uterine tissue of a 59-year-old female who died of a myocardial
		infarction. Patient history included cardiomyopathy, coronary artery disease, previous myocardial infarctions,
		hypercholesterolemia, hypotension, and arthritis.

[0422]

TABLE 7
Program	Description	Reference	Parameter Threshold
ABI	A program that removes	Applied Biosystems, Foster City, CA.
FACTURA	vector sequences and
	masks ambiguous bases in
	nucleic acid sequences.
ABI/	A Fast Data Finder	Applied Biosystems, Foster City, CA;	Mismatch < 50%
PARA-	useful in comparing and	Paracel Inc., Pasadena, CA.
CEL	annotating amino acid or
FDF	nucleic acid sequences.
ABI	A program that assembles	Applied Biosystems, Foster City, CA.
Auto-	nucleic acid sequences.
Assembler
BLAST	A Basic Local Alignment	Altschul, S. F. et al. (1990) J. Mol. Biol.	ESTs: Probability value 1.0E8
	Search Tool useful in	215: 403-410; Altschul, S. F. et al. (1997)	or less
	sequence similarity search	Nucleic Acids Res. 25: 3389-3402.	Full Length sequences: Probability
	for amino acid and		value 1.0E10 or less
	nucleic acid sequences.
	BLAST includes five
	functions: blastp, blastn,
	blastx, tblastn, and tblastx.
FASTA	A Pearson and Lipman	Pearson, W. R. and D. J. Lipman (1988) Proc.	ESTs: fasta E value 1.06E6
	algorithm that searches for	Natl. Acad Sci. USA 85: 2444-2448; Pearson, W. R.	Assembled ESTs: fasta Identity 95%
	similarity between a query	(1990) Methods Enzymol. 183: 63-98;	or greater and
	sequence and a group	and Smith, T. F. and M. S. Waterman (1981)	Match length 200 bases or greater;
	of sequences of the same	Adv. Appl. Math. 2: 482-489.	fastx E value 1.0E8 or less
	type. FASTA comprises		Full Length sequences:
	as least five functions:		fastx score 100 or greater
	fasta, tfasta, fastx,
	tfastx, and ssearch.
BLIMPS	A BLocks IMProved	Henikoff, S. and J. G. Henikoff (1991) Nucleic	Probability value 1.0E3 or less
	Searcher that matches a	Acids Res. 19: 6565-6572; Henikoff, J. G. and
	sequence against those	S. Henikoff (1996) Methods Enzymol.
	in BLOCKS, PRINTS,	266: 88-105; and Attwood, T. K. et al. (1997) J.
	DOMO, PRODOM, and	Chem. Inf. Comput. Sci. 37: 417-424.
	PFAM databases to
	search for gene families,
	sequence homology, and
	structural fingerprint regions.
HMMER	An algorithm for	Krogh, A. et al. (1994) J. Mol. Biol.	PFAM, INCY, SMART, and
	searching a query sequence	235: 1501-1531; Sonnhammer, E. L. L. et al.	TIGRFAM hits: Probability value
	against hidden Markov	(1988) Nucleic Acids Res. 26: 320-322;	1.0E3 or less
	model (HMM)-based	Durbin, R. et al. (1998) Our World View, in a	Signal peptide hits: Score 0 or greater
	databases of protein	Nutshell, Cambridge Univ. Press, pp. 1-350.
	family consensus
	sequences, such as PFAM.
	INCY, SMART, and TIGRFAM.
ProfileScan	An algorithm that searches	Gribskov, M. et al. (1988) CABIOS 4: 61-66;	Normalized quality score GCG-
	for structural and sequence	Gribskov, M. et al. (1989) Methods Enzymol.	specified HIGH value for that
	motifs in protein sequences	183: 146-159; Bairoch, A. et al. (1997)	particular Prosite motif.
	that match sequence	Nucleic Acids Res. 25: 217-221.	Generally, score 1.4-2.1.
	patterns defined in Prosite.
Phred	A base-calling algorithm	Ewing, B. et al. (1998) Genome Res.
	that examines automated	8: 175-185; Ewing, B. and P. Green
	sequencer traces with	(1998) Genome Res. 8: 186-194.
	high sensitivity and probability.
Phrap	A Phils Revised Assembly	Smith, T. F. and M. S. Waterman (1981) Adv.	Score 120 or greater;
	Program including SWAT and	Appl. Math. 2: 482-489; Smith, T. F. and M. S. Waterman	Match length 56 or greater
	CrossMatch, programs	(1981) J. Mol. Biol. 147: 195-197;
	based on efficient implementation	and Green, P., University of Washington,
	of the Smith-Waterman	Seattle, WA.
	algorithm, useful in
	searching sequence
	homology and assembling
	DNA sequences.
Consed	A graphical tool for	Gordon, D. et al. (1998) Genome Res. 8: 195-202.
	viewing and editing
	Phrap assemblies.
SPScan	A weight matrix analysis	Nielson, H. et al. (1997) Protein Engineering	Score 3.5 or greater
	program that scans protein	10: 1-6; Claverie, J. M. and S. Audic (1997)
	sequences for the presence	CABIOS 12: 431-439.
	of secretory signal peptides.
TMAP	A program that uses	Persson, B. and P. Argos (1994) J. Mol. Biol.
	weight matrices to delineate	237: 182-192; Persson, B. and P. Argos (1996)
	transmembrane segments	Protein Sci. 5: 363-371.
	on protein sequences
	and determine orientation.
TMHMMER	A program that	Sonnhammer, E. L. et al. (1998) Proc. Sixth Intl.
	uses a hidden Markov	Conf. on Intelligent Systems for Mol. Biol.,
	model (HMM) to delineate	Glasgow et al., eds., The Am. Assoc. for Artificial
	transmembrane segments	Intelligence Press, Menlo Park, CA, pp. 175-182.
	on protein sequences
	and determine orientation.
Motifs	A program that	Bairoch, A. et al. (1997) Nucleic Acids Res. 25: 217-221;
	searches amino acid	Wisconsin Package Program Manual, version 9, page
	sequences for patterns	M51-59, Genetics Computer Group, Madison, WI.
	that matched those
	defined in Prosite.

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