EP1053323A2 - Proteines receptrices humaines - Google Patents
Proteines receptrices humainesInfo
- Publication number
- EP1053323A2 EP1053323A2 EP99906764A EP99906764A EP1053323A2 EP 1053323 A2 EP1053323 A2 EP 1053323A2 EP 99906764 A EP99906764 A EP 99906764A EP 99906764 A EP99906764 A EP 99906764A EP 1053323 A2 EP1053323 A2 EP 1053323A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- leu
- ser
- gly
- ala
- val
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/705—Receptors; Cell surface antigens; Cell surface determinants
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
- A61P37/06—Immunosuppressants, e.g. drugs for graft rejection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- This invention relates to nucleic acid and amino acid sequences of human receptor proteins and to the use of these sequences in the diagnosis, treatment, and prevention of cancer, autoimmune/inflammatory disorders, reproductive disorders, gastrointestinal disorders, and developmental disorders.
- receptor describes proteins that specifically recognize other molecules.
- the category is broad and includes proteins with a variety of functions.
- the bulk of the proteins termed receptors are cell surface proteins which bind extracellular ligands, leading to cellular responses including growth, differentiation, endocytosis, and immune response.
- receptors facilitate the specific transport of proteins across the endoplasmic reticulum membrane and localize enzymes to a particular location in the cell.
- Cell surface receptors are typically integral membrane proteins of the plasma membrane. These receptors recognize hormones such as catecholamines, e.g., epinephrine, norepinephrine, and histamine; peptide hormones, e.g., glucagon, insulin, 0 gastrin, secretin, cholecystokinin, adrenocorticotropic hormone, follicle stimulating hormone, luteinizing hormone, thyroid stimulating hormone, parathyroid hormone, and vasopressin; growth and differentiation factors, e.g., epidermal growth factor, fibroblast growth factor, transforming growth factor, insulin-like growth factor, platelet-derived growth factor, nerve growth factor, colony-stimulating factors, and erythropoietin; 5 cytokines, e.g., chemokines, interleukins, interferons, and tumor necrosis factor; small peptide factors such as bombesin, oxytocin, endothelin,
- LDL low density lipoproteins
- transferrin glucose- or mannose-terminal glycoproteins
- galactose-terminal glycoproteins galactose-terminal glycoproteins
- immunoglobulins phosphovitellogenins
- fibrin proteinase-inhibitor complexes
- plasminogen activators thrombospondin.
- Cysteine-rich domains are found in two families of cell surface receptors, the LDL receptor family and the tumor necrosis factor receptor/nerve growth factor (TNFR/NGFR) receptor family.
- cysteine-rich domains composed of three to four modules of about forty residues each. Each module contains six conserved disulfide-bonded cysteines. These repeats are found in many receptors including
- TNFR types I and II lymphotoxin alpha/beta receptor, low-affinity NGFR, and cytokine receptors CD40, CD27, and CD30.
- ExPASy PROSITE document PDOC00561; and Bairoch, et al. supra.
- the frizzled cell surface receptor originally identified in Drosophila melanogaster. is important for proper bristle and hair polarity on the wing, leg, thorax, abdomen, and eye of the developing insect. (Wang, Y. et al. (1996) J. Biol. Chem. 271 :4468-4476.)
- the frizzled gene encodes a 587 amino acid protein which contains an O 99/41375
- N-terminal signal sequence and seven putative transmembrane regions The N-terminus is cysteine-rich and is probably located extracellularly while the C-terminus is probably cytosolic.
- Multiple frizzled gene homologs have been found in rat, mouse, and human.
- the frizzled receptors are not homologous to other seven-transmembrane-region receptors.
- the ligands that bind the frizzled receptors are still unknown.
- Calcitonin gene-related peptide is a neuropeptide with multiple effects including vasodilation, neuromodulation, and inhibition of smooth muscle, including uterine, contraction.
- the calcitonin gene- related peptide receptor component protein (CGRP-RCP) was cloned from guinea pig cochlea (hearing organ) as a protein which confers CGRP responsiveness to Xenopus oocytes.
- CGRP-RCP is co-localized with CGRP-containing efferent nerve terminals in guinea pig cochlea.
- a highly related mouse CGRP-RCP was identified whose levels drop during parturition, suggesting that this protein has a role in regulating uterine contractions during pregnancy.
- CGRP-RCP Because of CGRP-RCP 's hydrophilicity, researchers speculate that it is not itself the receptor, but rather associates with other proteins to form the receptor. Two seven-transmembrane- domain proteins have been identified which act as CGRP receptors.
- T cells play a central role in the immune system as effectors and regulators, coupling antigen recognition and the transmission of signals that induce cell death in infected cells and stimulate other immune cells.
- T cells recognize a wide range of different antigens, but a particular clonal line of T cells can only recognize a single antigen.
- T cells recognize antigens only when they are presented to the T cell receptor (TCR) as peptides in a complex with major histocompatibility molecules (MHC) on the surface of antigen presenting cells.
- TCR T cell receptor
- MHC major histocompatibility molecules
- the TCR ⁇ subunit has an extracellular domain containing both variable and constant regions, a transmembrane domain that traverses the membrane once, and a short intracellular domain. (Saito, H. et al. (1984) Nature 309:757-762.)
- the genes for the TCR subunits are constructed through somatic rearrangement of different gene segments. Interaction of antigen in the proper MHC O 99/41375
- TCR antigen repertoire is established by developmentally regulated TCR gene rearrangements. Immature T cells undergo a selection and differentiation process based on antigen binding prior to leaving the thymus. T cells that bind self-antigens while still in the cortex of the thymus are eliminated by apoptosis, establishing immunological tolerance. Failure to eliminate self reactive populations of cells has been shown to result in autoimmune disease. (Olive, C. (1995) Immunol. Cell Biol. 73: 297-307.) Mice with mutant TCR ⁇ or ⁇ subunits develop an inflammatory bowel disease similar to human ulcerative colitis. (Mombaerts, P, et al.
- IgE molecules bind to the high affinity IgE receptor (FcRI) present on mast cells and basophils. IgE binding activates the release of a variety of vasoactive mediators which promote allergic and inflammatory responses. (Beaven, M.A. and Baumgartner, R.A. (1996) Curr. Opin. Immunol. 8:766-772.)
- the FcRI is a tetrameric complex composed of an -chain, a ⁇ -chain, and a dimer of identical disulfide-linked ⁇ -chains.
- IgE molecule binds through their Fc region to the FcRI ⁇ -chain with a 1 :1 stoichiometry.
- the ⁇ - and ⁇ -chains of FcRI are required for signal transduction upon activation of the receptor complex by IgE binding.
- the ⁇ -chain is associated with the tyrosine kinase Lyn, and the ⁇ -chain is associated with the tyrosine kinase Syk. (Beaven and Baumgartner, supra.). Both the amino and carboxy termini of FCRI ⁇ are probably located in the cytoplasm. (Kinet, J. P. et al. (1988) Proc. Natl. Acad. Sci. USA 85: 6483-6487.)
- CD20 a related four-transmembrane-region protein, is expressed on the B cell surface where it initiates intracellular signals and modifies B cell growth and differentiation.
- CD20 is associated with the tyrosine kinases Lyn, Fyn, and Lck and with p75/p80 protein.
- CD20 may be the signal-transducing component of a receptor complex.
- Human HTm4 is expressed specifically in hematopoietic cells.
- SRP signal recognition particle
- a ribonucleoprotein binds the signal sequence after it emerges from the ribosome.
- the nascent chain/ribosome/SRP complex binds the SRP receptor on the cytosolic side of the ER membrane.
- the SRP dissociates from the signal sequence, allowing the nascent chain to begin translocating across the ER membrane.
- the SRP then dissociates from the SRP receptor, and both go on to catalyze new rounds of nascent chain targeting.
- the SRP receptor is composed of two subunits, SR ⁇ , a peripheral membrane protein, and SR ⁇ , an integral membrane protein with one transmembrane region. (Miller, J.D. et al. (1995) J. Cell Biol. 128:273-282.)
- the dissociation of SRP from the SRP receptor is driven by GTP hydrolysis; SR ⁇ , SR ⁇ , and the SRP54 protein are all GTPases. Abnormal hormonal secretion is linked to disorders including diabetes insipidus
- carcinoma hyper- and hypoglycemia
- Grave's disease and goiter thyroid hormone
- Cushing's and Addison's diseases asdrenocorticotropic hormone; ACTH.
- Cancer cells secrete excessive amounts of hormones or other biologically active peptides.
- Disorders related to excessive secretion of biologically active peptides by tumor cells include fasting hypoglycemia due to increased insulin secretion from insulinoma-islet cell tumors; hypertension due to increased epinephrine and norepinephrine secreted from pheochromocytomas of the adrenal medulla and sympathetic paraganglia; and carcinoid syndrome, which includes abdominal cramps, diarrhea, and valvular heart disease, caused by excessive amounts of vasoactive substances (serotonin, bradykinin, histamine, prostaglandins, and polypeptide hormones) secreted from intestinal tumors.
- vasoactive substances serotonin, bradykinin, histamine, prostaglandins, and polypeptide hormones
- Tumors may exhibit ectopic synthesis and secretion of biologically active peptides, including ACTH 5 and vasopressin in lung and pancreatic cancers; parathyroid hormone in lung and bladder cancers; calcitonin in lung and breast cancers; and thyroid-stimulating hormone in medullary thyroid carcinoma.
- biologically active peptides including ACTH 5 and vasopressin in lung and pancreatic cancers; parathyroid hormone in lung and bladder cancers; calcitonin in lung and breast cancers; and thyroid-stimulating hormone in medullary thyroid carcinoma.
- Ligatin is a filamentous peripheral membrane protein and lectin that acts as a trafficking receptor for phosphoglycoproteins (PGPs) including N-acetyl- ⁇ -
- Ligatin localizes PGPs within endosomes and at the cell periphery where PGPs participate in specific metabolic processes and in intracellular adhesion.
- Bound palmitic acid may be involved in the ligatin' s membrane attachment.
- Ligatin was originally found in ordered fibrillar arrays on the surface of suckling rat ileum and has subsequently been found in mammalian and avian tissues during embryonic development and early differentiated states.
- ligatin localizes n-acetyl- ⁇ - 0 glucsoaminidase for the extracellular digestion of carbohydrate moieties in maternal milk.
- the ligatin gene has been cloned from mouse. (Malnar-Dragojevic et al., supra.)
- the invention features substantially purified polypeptides, human receptor proteins, referred to collectively as “HURP” and individually as “HURP-1,” “HURP-2,” 0 “HURP-3,” “HURP-4,” “HURP-5,” “HURP-6,” “HURP-7,” and “HURP-8.”
- the invention provides a substantially purified polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:l, SEQ ID NO:2, SEQ ID O 99/413
- SEQ ID NO:3 SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, a fragment of SEQ ID NO:l, a fragment of SEQ ID NO:2, a fragment of SEQ ID NO:3, a fragment of SEQ ID NO:4, a fragment of SEQ ID NO:5, a fragment of SEQ ID NO:6, a fragment of SEQ ID NO:7, and a fragment of SEQ ID NO:8.
- the invention further provides a substantially purified variant having at least 90% amino acid identity to the amino acid sequences of SEQ ID NO: 1, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, or to a fragment of any of these sequences.
- the invention also provides an isolated and purified polynucleotide encoding the polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:l, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, a fragment of SEQ ID NO:l, a fragment of SEQ ID NO:2, a fragment of SEQ ID NO:3, a fragment of SEQ ID NO:4, a fragment of SEQ ID NO:5, a fragment of SEQ ID NO:6, a fragment of SEQ ID NO:7, and a fragment of SEQ ID NO: 8.
- the invention also includes an isolated and purified polynucleotide variant having at least 90% polynucleotide sequence identity to the polynucleotide encoding the polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO.T, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, a fragment of SEQ ID NO:l, a fragment of SEQ ID NO:2, a fragment of SEQ ID NO:3, a fragment of SEQ ID NO:4, a fragment of SEQ ID NO:5, a fragment of SEQ ID NO:6, a fragment of SEQ ID NO:7, and a fragment of SEQ ID NO:8.
- the invention provides an isolated and purified polynucleotide which hybridizes under stringent conditions to the polynucleotide encoding the polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:l, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, a fragment of SEQ ID NO:l, a fragment of SEQ ID NO:2, a fragment of SEQ ID NO:3, a fragment of SEQ ID NO:4, a fragment of SEQ ID NO:5, a fragment of SEQ ID NO:6, a fragment of SEQ ID NO:7, and a fragment of SEQ ID NO:8, as well as an isolated and purified polynucleotide having a sequence which is complementary to the polynucleotide encoding the polypeptide comprising the amino acid sequence selected from the group consisting of SEQ ID NO:l, SEQ ID NO:2, SEQ ID NO:
- the invention also provides an isolated and purified polynucleotide comprising a polynucleotide sequence selected from the group consisting of SEQ ID NO:9, SEQ ID NO: 10, SEQ ID NO:l 1, SEQ ID NO:12, SEQ ID NO:13, SEQ ID NO: 14, SEQ ID NO:15, SEQ ID NO: 16, a fragment of SEQ ID NO 9, a fragment of SEQ ID NO: 10, a fragment of SEQ ID NO:l 1, a fragment of SEQ ID NO:12, a fragment of SEQ ID NO:13, a fragment of SEQ ID NO: 14, a fragment of SEQ ID NO: 15, and a fragment of SEQ ID NO: 16.
- the invention further provides an isolated and purified polynucleotide variant having at least 90% polynucleotide sequence identity to the polynucleotide sequence comprising a polynucleotide sequence selected from the group consisting of SEQ ID NO:9, SEQ ID NO:10, SEQ ID NO:l 1, SEQ ID NO:12, SEQ ID NO:13, SEQ ID NO: 14, SEQ ID NO: 15, SEQ ID NO: 16, a fragment of SEQ ID NO 9, a fragment of SEQ ID NO: 10, a fragment of SEQ ID NO: 11 , a fragment of SEQ ID NO: 12, a fragment of SEQ ID NO: 13, a fragment of SEQ ID NO:14, a fragment of SEQ ID NO:15, and a fragment of SEQ ID NO: 16, as well as an isolated and purified polynucleotide having a sequence which is complementary to the polynucleotide comprising a polynucleotide sequence selected from the group consisting of SEQ ID NO:9, S
- the invention further provides an expression vector containing at least a fragment of the polynucleotide encoding the polypeptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:l, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, a fragment of SEQ ID NO:l, a fragment of SEQ ID NO:2, a fragment of SEQ ID NO:3, a fragment of SEQ ID NO:4, a fragment of SEQ ID NO:5, a fragment of SEQ ID NO:6, a fragment of SEQ ID NO:7, and a fragment of SEQ ID NO:8.
- the expression vector is contained within a host cell.
- the invention also provides a method for producing a polypeptide comprising the amino acid sequence selected from the group consisting of SEQ ID NO:l, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, a fragment of SEQ ID NO: 1 , a fragment of SEQ ID NO:2, a fragment of SEQ ID NO:3, a fragment of SEQ ID NO:4, a fragment of SEQ ID NO:5, a fragment of SEQ ID NO:6, a fragment of SEQ ID NO:7, and a fragment of SEQ ID NO:8, the method comprising the steps of: (a) culturing the host cell containing an expression vector containing at least a fragment of a polynucleotide encoding the polypeptide under conditions suitable for the expression of the polypeptide; and (b) recovering the polypeptide from the host cell culture.
- the invention also provides a pharmaceutical composition
- a pharmaceutical composition comprising a substantially purified polypeptide having the amino acid sequence selected from the group consisting of SEQ ID NO:l, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, a fragment of SEQ ID NO:l, a fragment of SEQ ID NO:2, a fragment of SEQ ID NO:3, a fragment of SEQ ID NO:4, a fragment of SEQ ID NO:5, a fragment of SEQ ID NO:6, a fragment of SEQ ID NO:7, and a fragment of SEQ ID NO: 8 in conjunction with a suitable pharmaceutical carrier.
- the invention further includes a purified antibody which binds to a polypeptide comprising the amino acid sequence selected from the group consisting of SEQ ID NO:l, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, a fragment of SEQ ID NO: 1 , a fragment of SEQ ID NO:2, a fragment of SEQ ID NO:3, a fragment of SEQ ID NO:4, a fragment of SEQ ID NO:5, a fragment of SEQ ID NO:6, a fragment of SEQ ID NO:7, and a fragment of SEQ ID NO:8, as well as a purified agonist and a purified antagonist to the polypeptide.
- a purified antibody which binds to a polypeptide comprising the amino acid sequence selected from the group consisting of SEQ ID NO:l, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6,
- the invention also provides a method for treating or preventing a cancer, the method comprising administering to a subject in need of such treatment an effective amount of an antagonist of the polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:l, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, a fragment of SEQ ID NO:l, a fragment of SEQ ID NO:2, a fragment of SEQ ID NO:3, a fragment of SEQ ID NO:4, a fragment of SEQ ID NO:5, a fragment of SEQ ID NO:6, a fragment of SEQ ID NO:7, and a fragment of SEQ ID NO:8.
- the invention also provides a method for treating or preventing an autoimmune/inflammatory disorder, the method comprising administering to a subject in need of such treatment an effective amount of an antagonist of the polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:l, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, a fragment of SEQ ID NO: 1 , a fragment of SEQ ID NO:2, a fragment of SEQ ID NO:3, a fragment of SEQ ID NO:4, a fragment of SEQ ID NO:5, a fragment of SEQ ID NO:6, a fragment of SEQ ID NO:7, and a fragment of SEQ ID NO:8.
- the invention also provides a method for treating or preventing a reproductive disorder, the method comprising administering to a subject in need of such treatment an effective amount of an antagonist of the polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO: 1, SEQ ID NO:2, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, a fragment of SEQ ID NO:l, a fragment of SEQ ID NO:2, a fragment of SEQ ID NO:5, a fragment of SEQ ID NO:6, and a fragment of SEQ ID NO:7.
- the invention also provides a method for treating or preventing a gastrointestinal disorder, the method comprising administering to a subject in need of such treatment an effective amount of an antagonist of the polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:6, SEQ ID NO:7, a fragment of SEQ ID NO:3, a fragment of SEQ ID NO:4, a fragment of SEQ ID NO:6, and a fragment of SEQ ID NO:7.
- the invention also provides a method for treating or preventing a gastrointestinal disorder, the method comprising administering to a subject in need of such treatment an effective amount of a pharmaceutical composition comprising a substantially purified polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO:8 and a fragment of SEQ ID NO:8.
- the invention also provides a method for treating or preventing a developmental disorder, the method comprising administering to a subject in need of such treatment an effective amount of a pharmaceutical composition comprising a substantially purified polypeptide having an amino acid sequence selected from the group consisting of SEQ ID NO: 1 , SEQ ID NO:2, a fragment of SEQ ID NO: 1 , and a fragment of SEQ ID NO:2.
- the invention also provides a method for detecting a polynucleotide encoding the polypeptide comprising the amino acid sequence selected from the group consisting of SEQ ID NO:l, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, a fragment of SEQ ID NO:l, a fragment of SEQ ID NO:2, a fragment of SEQ ID NO:3, a fragment of SEQ ID NO:4, a fragment of SEQ ID NO:5, a fragment of SEQ ID NO:6, a fragment of SEQ ID NO:7, and a fragment of SEQ ID NO: 8 in a biological sample containing nucleic acids, the method comprising the steps of: (a) hybridizing the complement of the polynucleotide sequence encoding the polypeptide comprising the amino acid sequence selected from the group consisting of SEQ ID NO:l, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4,
- HURP refers to the amino acid sequences of substantially purified HURP obtained from any species, particularly a mammalian species, including bovine, ovine, porcine, murine, equine, and preferably the human species, from any source, whether natural, synthetic, semi-synthetic, or recombinant.
- agonist refers to a molecule which, when bound to HURP, increases or prolongs the duration of the effect of HURP.
- Agonists may include proteins, nucleic acids, carbohydrates, or any other molecules which bind to and modulate the effect of HURP.
- Alleles are an alternative form of the gene encoding HURP. Alleles 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. Any given natural or recombinant gene may have none, one, or many allelic forms. Common mutational changes which give rise to alleles 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.
- altered nucleic acid sequences encoding HURP include those sequences with deletions, insertions, or substitutions of different nucleotides, resulting in a polynucleotide the same HURP or a polypeptide with at least one functional characteristic of HURP. Included within this definition are polymorphisms which may or may not be readily detectable using a particular oligonucleotide probe of the polynucleotide encoding HURP, and improper or unexpected hybridization to alleles, with a locus other than the normal chromosomal locus for the polynucleotide sequence encoding HURP.
- 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 HURP.
- 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 HURP is retained.
- negatively charged amino acids may include aspartic acid and glutamic acid
- positively charged amino acids may include lysine and arginine
- amino acids with uncharged polar head groups having similar hydrophilicity values may include leucine, isoleucine, and valine; glycine and alanine; asparagine and glutamine; serine and threonine; and phenylalanine and tyrosine.
- amino acid or 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.
- fragments refer to fragments of HURP which are preferably about 5 to about 15 amino acids in length and which retain some biological activity or immunological activity of HURP.
- amino acid sequence is recited herein to refer to an amino acid 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.
- 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. (See, e.g., Dieffenbach, C.W. and G.S. Dveksler (1995) PCR Primer, a Laboratory Manual. Cold Spring Harbor Press, Plainview, NY, pp.1-5.)
- PCR polymerase chain reaction
- Antagonist refers to a molecule which, when bound to HURP, decreases the amount or the duration of the effect of the biological or immunological activity of HURP. Antagonists may include proteins, nucleic acids, carbohydrates, antibodies, or any other molecules which decrease the effect of HURP.
- the term "antibody” refers to intact molecules as well as to fragments thereof, such as Fa, F(ab') 2 , and Fv fragments, which are capable of binding the epitopic determinant.
- Antibodies that bind HURP 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
- an animal e.g., a mouse, a rat, or a rabbit
- 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.
- antigenic determinant refers to that fragment of a molecule (i.e., an epitope) that makes contact with a particular antibody.
- an antigenic determinant may compete with the intact antigen (i.e., the immunogen used to elicit the immune response) for binding to an antibody.
- antisense refers to any composition containing a nucleic acid sequence which is complementary to a specific nucleic acid sequence.
- antisense strand is used in reference to a nucleic acid strand that is complementary to the “sense” strand.
- Antisense molecules may be produced by any method including synthesis or transcription. Once introduced into a cell, the complementary nucleotides combine with natural sequences produced by the cell to form duplexes and to block either transcription or translation. The designation “negative” can refer to the antisense strand, and the designation “positive” can refer to the sense strand.
- biologically active refers to a protein having structural, regulatory, or biochemical functions of a naturally occurring molecule.
- immunologically active refers to the capability of the natural, recombinant, or synthetic HURP, or of any oligopeptide thereof, to induce a specific immune response in appropriate animals or cells and to bind with specific antibodies.
- complementarity refers to the natural binding of polynucleotides under permissive salt and temperature conditions by base pairing.
- sequence A-G-T
- complementary sequence T-C-A
- Complementarity between two single-stranded molecules may be "partial,” such that only some of the nucleic acids bind, or it may be “complete,” such that total complementarity exists between the single stranded molecules.
- the degree of complementarity between nucleic acid strands has significant effects on the efficiency and strength of the hybridization between the nucleic acid strands. This is of particular importance in amplification reactions, which depend upon binding between nucleic acids strands, and in the design and use of peptide nucleic acid (PNA) molecules.
- PNA peptide nucleic acid
- composition comprising a given polynucleotide sequence or a “composition comprising a given amino acid sequence,” as these terms are used herein, refer broadly to any composition containing the given polynucleotide or amino acid sequence.
- the composition may comprise a dry formulation, an aqueous solution, or a sterile composition.
- Compositions comprising polynucleotide sequences encoding HURP or fragments of HURP 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.
- the probe may be deployed in an aqueous solution containing salts (e.g., NaCl), detergents (e.g., SDS), and other components (e.g., Denhardt's solution, dry milk, salmon sperm DNA, etc.).
- salts e.g., NaCl
- detergents e.g., SDS
- other components e.g., Denhardt's solution, dry milk, salmon sperm DNA, etc.
- Consensus sequence refers to a nucleic acid sequence which has been resequenced to resolve uncalled bases, extended using XL -PCRTM (Perkin Elmer, Norwalk, CT) in the 5' and/or the 3' direction, and resequenced, or which has been assembled from the overlapping sequences of more than one Incyte Clone using a computer program for fragment assembly, such as the GEL VIEWTM Fragment Assembly system (GCG, Madison, WI). Some sequences have been both extended and assembled to produce the consensus sequence.
- the term "correlates with expression of a polynucleotide” indicates that the detection of the presence of nucleic acids, the same or related to a nucleic acid sequence encoding HURP, by northern analysis is indicative of the presence of nucleic acids encoding HURP in a sample, and thereby correlates with expression of the transcript from the polynucleotide encoding HURP.
- a “deletion,” as the term is used herein, 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.
- derivative refers to the chemical modification of HURP, of a polynucleotide sequence encoding HURP, or of a polynucleotide sequence complementary to a polynucleotide sequence encoding HURP.
- Chemical modifications of a polynucleotide sequence can include, for example, replacement of hydrogen by an alkyl, acyl, 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.
- a partially complementary sequence that at least partially inhibits an identical sequence from hybridizing to a target nucleic acid is referred to as “substantially homologous.”
- the inhibition of hybridization of the completely complementary sequence to the target sequence may be examined using a hybridization assay (Southern or northern blot, solution hybridization, and the like) under conditions of reduced stringency.
- a substantially homologous sequence or hybridization probe will compete for and inhibit the binding of a completely homologous sequence to the target sequence under conditions of reduced stringency.
- Percent identity refers to the percentage of sequence similarity found in a comparison of two or more amino acid or nucleic acid sequences. Percent identity can be determined electronically, e.g., by using the MEGALIGNTM program (LASERGENETM software package, DNASTAR, Inc., Madison WI).
- the MEGALIGNTM program can create alignments between two or more sequences according to different methods, e.g., the clustal method. (Higgins, D.G. and P.M. Sha ⁇ (1988) Gene 73:237-244.)
- the clustal algorithm groups sequences into clusters by examining the distances between all pairs. The clusters are aligned pairwise and then in groups.
- the percentage similarity between two amino acid sequences is calculated by dividing the length of sequence A, minus the number of gap residues in sequence A, minus the number of gap residues in sequence B, into the sum of the residue matches between sequence A and sequence B, times one hundred. Gaps of low or of no homology between the two amino acid sequences are not included in determining percentage similarity. Percent identity between nucleic acid sequences can also be calculated by the clustal method, or by other methods known in the art, such as the Jotun Hein method. (See, e.g., Hein, J. (1990) Methods Enzymol. 183:626-645.) Identity between sequences can also be determined by other methods known in the art, e.g., by varying hybridization conditions.
- HACs 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 stable mitotic chromosome segregation and maintenance. (See, e.g., Harrington, J.J. et al. (1997) Nat Genet. 15:345-355.)
- humanized antibody refers to antibody molecules 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.
- Hybridization refers to any process by which a strand of nucleic acid binds with a complementary strand through base pairing.
- 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., C 0 t or Rot 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).
- insertion or “addition,” as used herein, refer to changes in an amino acid or nucleotide sequence resulting in the addition of one or more amino acid residues or nucleotides, respectively, to the sequence found in the naturally occurring molecule.
- Immuno 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.
- microarray refers to an array of distinct polynucleotides or oligonucleotides arranged on a substrate, such as paper, nylon or any other type of membrane, filter, chip, glass slide, or any other suitable solid support.
- modulate refers to a change in the activity of HURP. For example, modulation may cause an increase or a decrease in protein activity, binding characteristics, or any other biological, functional, or immunological properties of HURP.
- nucleic acid or “nucleic acid sequence,” as used herein, refer to an oligonucleotide, nucleotide, polynucleotide, or any fragment thereof, 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.
- fragments refers to those nucleic acid sequences which are greater than about 60 nucleotides in length, and most preferably are at least about 100 nucleotides, at least about 1000 nucleotides, or at least about 10,000 nucleotides in length.
- operably associated refers to functionally related nucleic acid sequences.
- a promoter is operably associated or operably linked with a coding sequence if the promoter controls the transcription of the encoded polypeptide. While operably associated or operably linked nucleic acid sequences can be contiguous and in the same reading frame, certain genetic elements, e.g., repressor genes, are not contiguously linked to the encoded polypeptide but still bind to operator sequences that control expression of the polypeptide.
- oligonucleotide refers to a nucleic acid sequence of at least about 6 nucleotides to 60 nucleotides, preferably about 15 to 30 nucleotides, and most preferably about 20 to 25 nucleotides, which can be used in PCR amplification or in a hybridization assay or microarray.
- oligonucleotide is substantially equivalent to the terms “amplimers,” “primers,” and “oligomers” as these terms are commonly defined in the art.
- PNA protein 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 and RNA and stop transcript elongation, and may be pegylated to extend their lifespan in the cell. (See, e.g., Nielsen, P.E. et al. (1993) Anticancer Drug Des. 8:53-63.)
- sample is used in its broadest sense.
- a biological sample suspected of containing nucleic acids encoding HURP, or fragments thereof, or HURP itself 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 solid support; a tissue; a tissue print; etc.
- the terms “specific binding” or “specifically binding” refer to that interaction between a protein or peptide and an agonist, an antibody, or an antagonist. The interaction is dependent upon the presence of a particular structure of the protein recognized by the binding molecule (i.e., the antigenic determinant or epitope). For example, if an antibody is specific for epitope "A,” the presence of a polypeptide containing 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.
- stringent conditions refers to conditions which permit hybridization between polynucleotide sequences and the claimed polynucleotide sequences.
- stringent conditions can be defined by, for example, the concentrations of salt or formamide in the prehybridization and hybridization solutions, or by the hybridization temperature, and are well known in the art.
- stringency can be increased by reducing the concentration of salt, increasing the concentration of formamide, or raising the hybridization temperature.
- hybridization under high stringency conditions could occur in about 50% formamide at about 37°C to 42°C.
- Hybridization could occur under reduced stringency conditions in about 35% to 25% formamide at about 30°C to 35°C.
- hybridization could occur under high stringency conditions at 42°C in 50% formamide, 5X SSPE, 0.3% SDS, and 200 g/ml sheared and denatured salmon sperm DNA.
- Hybridization could occur under reduced stringency conditions as described above, but in 35% formamide at a reduced temperature of 35°C.
- the temperature range corresponding to a particular level of stringency can be further narrowed by calculating the purine to pyrimidine ratio of the nucleic acid of interest and adjusting the temperature accordingly.
- 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 about 60% free, preferably about 75% free, and most preferably about 90% free from other components with which they are naturally associated.
- substitution refers to the replacement of one or more amino acids or nucleotides by different amino acids or nucleotides, respectively.
- Transformation describes a process by which exogenous DNA enters and changes 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, viral infection, electroporation, heat shock, lipofection, and particle bombardment.
- 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, and refers to cells which transiently express the inserted DNA or RNA for limited periods of time.
- a “variant" of HURP refers to an amino acid sequence that is altered by one or more amino acids.
- the variant may have "conservative” changes, wherein a substituted amino acid has similar structural or chemical properties (e.g., replacement of leucine with isoleucine). More rarely, a variant may have "nonconservative” changes (e.g., replacement of glycine with tryptophan).
- Analogous minor variations may also include amino acid deletions or insertions, or both.
- Guidance in determining which amino acid residues may be substituted, inserted, or deleted without abolishing biological or immunological activity may be found using computer programs well known in the art, for example, LASERGENETM software.
- the invention is based on the discovery of new human receptor proteins (HURP), the polynucleotides encoding HURP, and the use of these compositions for the diagnosis, treatment, or prevention of cancer, autoimmune/inflammatory disorders, reproductive disorders, gastrointestinal disorders, and developmental disorders.
- Table 1 shows the sequence identification numbers, Incyte Clone identification number, and cDNA library for each of the human receptor proteins disclosed herein.
- Nucleic acids encoding the HURP-1 of the present invention were first identified in Incyte Clone 29167 from the fetal spleen tissue cDNA library (SPLNFET01) using a computer search for amino acid sequence alignments.
- a consensus sequence, SEQ ID NO:9 was derived from the following overlapping and/or extended nucleic acid sequences: Incyte Clones 29167 (SPLNFET01), 36294 (HUVENOB01), 1458963 (COLNFET02), 2263065 (UTRSNOT02), and 2693656 (LUNGNOT23).
- the invention encompasses a polypeptide comprising the amino acid sequence of SEQ ID NO:l.
- HURP-1 is 584 amino acids in length and has one potential N-glycosylation site at NI 81 ; four potential cAMP- and cGMP-dependent protein kinase phosphorylation sites at S313, S318, S404, and T505; seven potential casein kinase II phosphorylation sites at S88, S152, T171, S237, T259, T366, and S404; and four potential protein kinase C phosphorylation sites at S17, S246, S313, and S500.
- HURP-1 has chemical and structural homology with mouse ligatin (GI 1377880).
- HURP-1 and mouse ligatin share 78% identity.
- the most useful fragment of SEQ ID NO: 9 is from about nucleotide 725 to about nucleotide 739.
- Northern analysis shows the expression of this sequence in various libraries, at least 64% of which are immortalized or cancerous, at least 18% of which are from inflamed tissue, and at least 11% of which are from fetal/proliferating cells. Of particular note is the expression of HURP-1 in libraries made from reproductive tissues (44%).
- Incyte Clone 150629 from the untreated ataxia telangiectasia fibroblast cell line cDNA library (FIBRANT01) using a computer search for amino acid sequence alignments.
- a consensus sequence, SEQ ID NO: 10 was derived from the following overlapping and/or extended nucleic acid sequences: Incyte Clones 150629 (FIBRANT01), 639489 (BRSTNOT03), 878146 (LUNGAST01), and 995140 (KIDNTUT01), and shotgun sequences SAAB00536 and SAIA03775.
- the invention encompasses a polypeptide comprising the amino acid sequence of SEQ ID NO:2.
- HURP-2 is 706 amino acids in length and has two potential N-glycosylation sites at N38 and N352; two potential cAMP- and cGMP-dependent protein kinase sites at T150 and S316; eight potential casein kinase II phosphorylation sites at T84, T499, T576, T585, T591, S596, S641, and S673; eight potential protein kinase C phosphorylation sites at S496, S519, S548, S596, T607, S645, S653, and S679; and one potential tyrosine kinase phosphorylation site at Y103.
- HURP-2 has a potential signal sequence from Ml to about G18.
- HURP-2 has chemical and structural homology with mouse frizzled 6 putative transmembrane receptor (GI)
- HURP-2 and mouse frizzled 6 putative transmembrane receptor share 83% identity.
- the extracellular domain of HURP-2 is from amino acid residue 1 to about amino acid residue 199
- the transmembrane domain is from about amino acid residue 200 to about amino acid residue 496
- the intracellular domain from about amino acid residue 497 to amino acid residue 706.
- the most useful fragment of SEQ ID NO: 10 is from about nucleotide 178 to about nucleotide 198.
- Northern analysis shows the expression of this sequence in various libraries, at least 42% of which are immortalized or cancerous, at least 32% of which are from inflamed tissue, and at least 16% of which are from fetal/proliferating cells. Of particular note is the expression of HURP-2 in libraries made from reproductive tissues (32%), and cardiovascular tissues (26%).
- Nucleic acids encoding the HURP-3 of the present invention were first identified in Incyte Clone 611082 from the nontumorous colon tissue cDNA library (COLNNOT01) using a computer search for amino acid sequence alignments.
- a consensus sequence, SEQ ID NO: 11, was derived from the following overlapping and/or extended nucleic acid sequences: Incyte Clones 611082 (COLNNOT01), 776770 (COLNNOT05), 904152 (COLNNOT07), 908496 (COLNNOT09), and 1866665 (SKINBIT01).
- the invention encompasses a polypeptide comprising the amino acid sequence of SEQ ID NO:3.
- HURP-3 is 267 amino acids in length and has four potential N-glycosylation sites at N13, N228, N232, and N260; three potential casein kinase II phosphorylation sites at S8, SI 15, and S210; and three potential protein kinase C 5 phosphorylation sites at S3, SI 15, and SI 98.
- HURP-3 has chemical and structural homology with rat IgE receptor ⁇ -subunit protein (GI 204117) and human CD20 protein (GI 179308). In particular, HURP-3 shares 23% identity with rat IgE receptor ⁇ -subunit protein and 19% identity with human CD20 protein. By homology to rat IgE receptor ⁇ - subunit protein and human CD20 protein, the N-terminal intracellular domain of HURP-3
- SEQ ID NO: 11 is from about nucleotide 278 to about nucleotide 301.
- Northern analysis shows the expression of this sequence in various libraries, at least
- Nucleic acids encoding the HURP-4 of the present invention were first identified in Incyte Clone 1223275 from the colon tumor tissue cDNA library (COLNTUT02) using a 0 computer search for amino acid sequence alignments.
- a consensus sequence, SEQ ID NO: 12 was derived from the following overlapping and/or extended nucleic acid sequences: Incyte Clones 34843 (THP1NOB01), 1223275 (COLNTUT02), 2445731 (THP1NOT03), 1724713(PROSNOT14), and 1773030 (MENTUNON3).
- the invention encompasses a polypeptide comprising the 5 amino acid sequence of SEQ ID NO:4.
- HURP-4 is 248 amino acids in length and has three potential N-glycosylation sites at N8, N20, and N74; one potential cAMP- and cGMP-dependent protein kinase phosphorylation site at Tl 10; two potential casein kinase II phosphorylation sites at S22 and T193; five potential protein kinase C phosphorylation sites at S36, T105, S136, T177, and S233; and one potential tyrosine kinase 0 phosphorylation site at Y242.
- HURP-4 has a potential signal sequence from Ml to about A24.
- HURP-4 has chemical and structural homology with rat IgE receptor ⁇ -subunit protein (GI 204117) and with human CD20 protein (GI 179308). In particular, HURP-4 shares 22% identity with rat IgE receptor ⁇ -subunit protein and 19% homology with human CD20 protein.
- the N-terminal intracellular domain of HURP-4 is from amino acid residue 1 to about amino acid residue 46, the transmembrane domain from about amino acid residue 47 to about amino acid residue 204, and the C-terminal intracellular domain from about amino acid residue 205 to amino acid residue 248.
- the most useful fragment of SEQ ID NO: 12 is from about nucleotide 215 to about nucleotide 232.
- Northern analysis shows the expression of this sequence in various libraries, at least 45% of which are immortalized or cancerous and at least 53% of which are from inflamed tissue.
- HURP-4 in libraries made from hematopoietic/immune tissues (21%)) and gastrointestinal tissues (20%).
- Nucleic acids encoding the HURP-5 of the present invention were first identified in Incyte Clone 1255202 from the brain meningioma tissue cDNA library (MENITUT03) using a computer search for amino acid sequence alignments.
- a consensus sequence, SEQ ID NO: 13 was derived from the following overlapping and/or extended nucleic acid sequences: Incyte Clones 348357 (LVENNOT01) and 1255202 (MENITUT03).
- the invention encompasses a polypeptide comprising the amino acid sequence of SEQ ID NO:5.
- HURP-5 is 130 amino acids in length and has one potential cAMP- and cGMP-dependent protein kinase phosphorylation site at S30; three potential casein kinase II phosphorylation sites at SI 2, T79, and T93; and four potential protein kinase C phosphorylation sites at S30, T49, S75, and T128.
- HURP-5 has chemical and structural homology with mouse CGRP-receptor component protein (GI 2599066). In particular, HURP-5 and mouse CGRP-receptor component protein share 85% identity.
- the most useful fragment of SEQ ID NO: 13 is from about nucleotide 274 to about nucleotide 297.
- Northern analysis shows the expression of this sequence in various libraries, at least 67% of which are immortalized or cancerous and at least 17% of which are from inflamed tissue.
- Nucleic acids encoding the HURP-6 of the present invention were first identified in Incyte Clone 1261646 from the knee synovial tissue cDNA library (SYNORAT05) using a computer search for amino acid sequence alignments.
- a consensus sequence, SEQ ID NO: 14, was derived from the following overlapping and/or extended nucleic acid sequences: Incyte Clones 1261646 (SYNORAT05), 1419057 (KIDNNOT09), 1651262 (PROSTUT08), 1704186 (DUODNOT02), and 3394566 (LUNGNOT28).
- the invention encompasses a polypeptide comprising the amino acid sequence of SEQ ID NO:6.
- HURP-6 is 271 amino acids in length and has one potential cAMP- and cGMP-dependent protein kinase phosphorylation site at S63; three potential casein kinase II phosphorylation sites at S95, Tl 14, and S213; ten potential protein kinase C phosphorylation sites at S6, T25, S59, S63, S75, S123, S135, S189, T203, and S247; one potential tyrosine kinase phosphorylation site at Y160; and one potential ATP/GTP-binding site motif A (P-loop) from G71LCDSGKT.
- P-loop ATP/GTP-binding site motif A
- HURP-6 has chemical and structural homology with mouse signal recognition particle receptor ⁇ subunit (GI 600886).
- HURP-6 and mouse signal recognition particle receptor ⁇ subunit share 90% identity.
- the ER-lumen-facing domain of HURP-6 is from amino acid residue 1 to about amino acid residue 35, the transmembrane domain from about amino acid residue 36 to about amino acid residue 54, and the cytoplasmic domain from about amino acid residue 55 to amino acid residue 271.
- the most useful fragment of SEQ ID NO: 14 is from about nucleotide 128 to about nucleotide 148.
- Northern analysis shows the expression of this sequence in various libraries, at least 38%) of which are immortalized or cancerous and at least 38% of which are from inflamed tissue. Of particular note is the expression of HURP-6 in libraries made from reproductive tissues (23%) and gastrointestinal tissues (21%).
- Nucleic acids encoding the HURP-7 of the present invention were first identified in Incyte Clone 2083528 from the uterine tissue cDNA library (UTRSNOT08) using a computer search for amino acid sequence alignments.
- a consensus sequence, SEQ ID NO: 15, was derived from the following overlapping and/or extended nucleic acid sequences: Incyte Clones 757728 (BRAITUT02), 827431 (PROSNOT06), 917601 (BRSTNOT04), 1314605 (BLADTUT02), 1334893 (COLNNOT13), 1346609 (PROSNOT11), 2083528 (UTRSNOT08), and 2880867 (UTRSTUT05).
- the invention encompasses a polypeptide comprising the amino acid sequence of SEQ ID NO:7.
- HURP-7 is 591 amino acids in length and has four potential N-glycosylation sites at N56, NI 11, N193, and N299; five potential casein kinase II phosphorylation sites at S96, T195, T237, T348, and S481; seven potential protein kinase C phosphorylation sites at T70, S82, T86, T183, S258, T463, and T570; and one potential tyrosine kinase phosphorylation site at Y413.
- HURP-7 has a potential signal sequence from Ml to about A16; two potential TNFR/NGFR cysteine-rich regions from C140 to C174 and from C381 to C418; and three potential LDL receptor class A domains from L138 to S176, from R313 to G355, and from R397 to Y435.
- the most useful fragment of SEQ ID NO: 15 is from about nucleotide 280 to about nucleotide 297.
- Northern analysis shows the expression of this sequence in various libraries, at least 51% of which are immortalized or cancerous and at least 37% of which are from inflamed tissue. Of particular note is the expression of HURP-7 in libraries made from reproductive (30%), gastrointestinal (16%), and cardiovascular (15%) tissues. Nucleic acids encoding the HURP-8 of the present invention were first identified in
- Incyte Clone 1451415 from the penile tumor tissue cDNA library (PENITUT01) using a computer search for amino acid sequence alignments.
- a consensus sequence, SEQ ID NO:2 was derived from the following overlapping and/or extended nucleic acid sequences: Incyte Clones 1451415 (PENITUT01), 2918942 (THYMFET03), and 3603481 (DRGTNOT01 ), and shotgun sequence SB JA02297.
- the invention encompasses a polypeptide comprising the amino acid sequence of SEQ ID NO: 16.
- HURP-8 is 314 amino acids in length and has one potential N-glycosylation site at N205; one potential cAMP- and cGMP-dependent protein kinase phosphorylation site at S312; four potential casein kinase II phosphorylation sites at TlOl, T133, SI 52, and S239; and five potential protein kinase C phosphorylation sites at S26, S81, T95, T159, and S212.
- HURP-8 has chemical and structural homology with human T-cell receptor ⁇ (GI 1100182). In particular, HURP-8 and human T-cell receptor ⁇ share 87% identity.
- the extracellular domain of HURP-8 is from amino acid residue 1 to about amino acid residue 285, the transmembrane domain from about amino acid residue 286 to about amino acid residue 307, and the intracellular domain from about amino acid residue 308 to amino acid residue 314.
- the most useful fragment of SEQ ID NO: 16 is from about nucleotide 106 to about nucleotide 129.
- Northern analysis shows the expression of this sequence in various libraries, at least 35% of which are immortalized or cancerous and at least 57% of which are from inflamed tissue.
- HURP-8 in libraries made from hematopoietic/immune (30%) and gastrointestinal tissues (22%).
- the invention also encompasses HURP variants.
- a preferred HURP variant is one which has at least about 80%, more preferably at least about 90%, and most preferably at least about 95% amino acid sequence identity to the HURP amino acid sequence, and which contains at least one functional or structural characteristic of HURP.
- the invention also encompasses polynucleotides which encode HURP.
- the invention encompasses a polynucleotide sequence comprising the sequence selected from the group consisting of SEQ ID NO:9, SEQ ID NO: 10, SEQ ID NO:l 1, SEQ ID NO: 12, SEQ ID NO: 13, SEQ ID NO: 14, SEQ ID NO: 15, and SEQ ID NO: 16, which encodes a HURP.
- the invention also encompasses a variant of a polynucleotide sequence encoding
- such a variant polynucleotide sequence will have at least about 80%, more preferably at least about 90%, and most preferably at least about 95% polynucleotide sequence identity to the polynucleotide sequence encoding HURP.
- a particular aspect of the invention encompasses a variant a polynucleotide sequence selected from the group SEQ ID NO:9, SEQ ID NO: 10, SEQ ID NO:l 1, SEQ ID NO:12, SEQ ID NO:13, SEQ ID NO: 14, SEQ ID NO: 15, and SEQ ID NO: 16 which has at least about 80%, more preferably at least about 90%, and most preferably at least about 95% polynucleotide sequence identity to a polynucleotide sequence selected from the group consisting of SEQ ID NO:9, SEQ ID NO: 10, SEQ ID NO:l 1, SEQ ID NO: 12, SEQ ID NO: 13, SEQ ID NO: 14, SEQ ID NO: 15, and SEQ ID NO: 16.
- Any one of the polynucleotide variants described above can encode an amino acid sequence which contains at least one functional or structural characteristic of HURP.
- nucleotide sequences which encode HURP and its variants are preferably capable of hybridizing to the nucleotide sequence of the naturally occurring HURP under appropriately selected conditions of stringency, it may be advantageous to produce nucleotide sequences encoding HURP or its derivatives possessing a substantially different codon usage. 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.
- RNA transcripts having more desirable properties such as a greater half-life, than transcripts produced from the naturally occurring sequence.
- the invention also encompasses production of DNA sequences which encode
- HURP and HURP 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 that are well known in the art. Moreover, synthetic chemistry may be used to introduce mutations into a sequence encoding HURP or any fragment thereof.
- polynucleotide sequences that are capable of hybridizing to the claimed polynucleotide sequences, and, in particular, to those shown in SEQ ID NO:9, SEQ ID NO:10, SEQ ID NO:l 1, SEQ ID NO:12, SEQ ID NO:13, SEQ ID NO: 14, SEQ ID NO: 15, or SEQ ID NO: 16 or fragments thereof under various conditions of stringency.
- SEQ ID NO:9, SEQ ID NO:10, SEQ ID NO:l 1, SEQ ID NO:12, SEQ ID NO:13, SEQ ID NO: 14, SEQ ID NO: 15, or SEQ ID NO: 16 or fragments thereof under various conditions of stringency See, e.g., Wahl, G.M. and S.L. Berger (1987) Methods Enzymol. 152:399-407; and Kimmel. A.R. (1987) Methods Enzymol. 152:507-511.
- Methods for DNA sequencing are well known and generally available 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 Corp., Cleveland, OH), Taq polymerase (Perkin Elmer), thermostable T7 polymerase (Amersham, Chicago, IL), or combinations of polymerases and proofreading exonucleases such as those found in the ELONGASE Amplification System (GlBCO/BRL, Gaithersburg, MD).
- the process is automated with machines such as the Hamilton Micro Lab 2200 (Hamilton, Reno, NV), Peltier Thermal Cycler (PTC200; MJ Research, Watertown, MA) and the ABI Catalyst and 373 and 377 DNA Sequencers (Perkin Elmer).
- machines such as the Hamilton Micro Lab 2200 (Hamilton, Reno, NV), Peltier Thermal Cycler (PTC200; MJ Research, Watertown, MA) and the ABI Catalyst and 373 and 377 DNA Sequencers (Perkin Elmer).
- the nucleic acid sequences encoding HURP may be extended utilizing a partial nucleotide sequence and employing various methods known in the art to detect upstream sequences, such as promoters and regulatory elements.
- one method which may be employed, restriction-site PCR uses universal primers to retrieve unknown sequence adjacent to a known locus.
- genomic DNA is first amplified in the presence of a primer complementary to a linker sequence within the vector and a primer specific to the region predicted to encode the gene.
- the amplified sequences are then subjected to a second round of PCR with the same linker primer and another specific primer internal to the first one.
- Products of each round of PCR are transcribed with an appropriate RNA polymerase and sequenced using reverse transcriptase.
- Inverse PCR may also be used to amplify or extend sequences using divergent primers based on a known region.
- the primers may be designed using commercially available software such as OLIGO 4.06 Primer Analysis software (National Biosciences Inc., Madison, MN) 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 72°C.
- the method uses several restriction enzymes to generate a suitable fragment in the known region of a gene.
- the fragment is then circularized by intramolecular ligation and used as a PCR template.
- Another method which may be used is capture PCR, which involves PCR amplification of DNA fragments adjacent to a known sequence in human and yeast artificial chromosome DNA. (See, e.g., Lagerstrom, M. et al. (1991) PCR Methods . Applic. 1 :111-119.)
- capture PCR involves PCR amplification of DNA fragments adjacent to a known sequence in human and yeast artificial chromosome DNA.
- multiple restriction enzyme digestions and ligations may be used to place an engineered double-stranded sequence into an unknown fragment of the DNA molecule 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.
- Genomic libraries may be useful for extension of sequence into 5' non-transcribed regulatory regions.
- Capillary electrophoresis systems which are commercially available may be used to analyze the size or confirm the nucleotide sequence of sequencing or PCR products.
- capillary sequencing may employ flowable polymers for electrophoretic separation, four different fluorescent dyes (one for each nucleotide) which are laser activated, 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., GenotyperTM and Sequence NavigatorTM, Perkin Elmer), 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 the sequencing of small pieces of DNA which might be present in limited amounts in a particular sample.
- polynucleotide sequences or fragments thereof which encode HURP may be used in recombinant DNA molecules to direct expression of HURP, 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 may be produced, and these sequences may be used to clone and express HURP. As will be understood by those of skill in the art, it may be advantageous to produce HURP-encoding nucleotide sequences possessing non-naturally occurring codons.
- codons preferred by a particular prokaryotic or eukaryotic host can be selected to increase the rate of protein expression or to produce an RNA transcript having desirable properties, such as a half-life which is longer than that of a transcript generated from the naturally occurring sequence.
- nucleotide sequences of the present invention can be engineered using methods generally known in the art in order to alter HURP-encoding sequences for a variety of reasons including, but not limited to, alterations which modify 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, site-directed mutagenesis may be used to insert new restriction sites, alter glycosylation patterns, change codon _
- natural, modified, or recombinant nucleic acid sequences encoding HURP may be ligated to a heterologous sequence to encode a fusion protein.
- a heterologous sequence to encode a fusion protein.
- a fusion protein may also be engineered to contain a cleavage site located between the HURP encoding sequence and the heterologous protein sequence, so that HURP may be cleaved and purified away from the heterologous moiety.
- sequences encoding HURP may be synthesized, in whole or in part, using chemical methods well known in the art.
- the protein itself may be produced using chemical methods to synthesize the amino acid sequence of HURP, or a fragment thereof.
- peptide synthesis can be performed using various solid-phase techniques. (See, e.g., Roberge. J.Y. et al. (1995) Science 269:202-204.) Automated synthesis may be achieved using the ABI 431 A Peptide Synthesizer (Perkin Elmer).
- the newly synthesized peptide may be substantially purified by preparative high performance liquid chromatography.
- the composition of the synthetic peptides may be confirmed by amino acid analysis or by sequencing.
- the amino acid sequence of HURP, 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.
- HURP or derivatives thereof may be inserted into appropriate expression vector, i.e., a vector which contains the necessary elements for the transcription and translation of the inserted coding sequence.
- 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 virus expression vectors (e.g., baculovirus); plant cell systems transformed with virus expression vectors (e.g., cauliflower mosaic virus (CaMV) or tobacco mosaic virus
- TMV tumor necrosis virus
- bacterial expression vectors e.g., Ti or pBR322 plasmids
- the invention is not limited by the host cell employed.
- control elements are those non-translated regions, e.g., enhancers, promoters, and 5' and 3' untranslated regions, of the vector and polynucleotide sequences encoding HURP which interact with host cellular proteins to carry out transcription and translation. Such elements may vary in their strength and specificity. Depending on the vector system and host utilized, any number of suitable transcription and translation elements, including constitutive and inducible promoters, may be used. For example, when cloning in bacterial systems, inducible promoters, e.g., hybrid lacZ promoter of the Bluescript® phagemid (Stratagene.
- La Jolla, CA) or pSportlTM plasmid may be used.
- the baculovirus polyhedrin promoter may be used in insect cells. Promoters or enhancers derived from the genomes of plant cells (e.g., heat shock. RUBISCO, and storage protein genes) or from plant viruses (e.g., viral promoters or leader sequences) may be cloned into the vector. In mammalian cell systems, promoters from mammalian genes or from mammalian viruses are preferable. If it is necessary to generate a cell line that contains multiple copies of the sequence encoding HURP, vectors based on SV40 or EBV may be used with an appropriate selectable marker. In bacterial systems, a number of expression vectors may be selected depending upon the use intended for HURP. For example, when large quantities of HURP are needed for the induction of antibodies, vectors which direct high levei expression of fusion O 99/41375
- Such vectors include, but are not limited to, multifunctional E. coli cloning and expression vectors such as Bluescript® (Stratagene), in which the sequence encoding HURP may be ligated into the vector in frame with sequences for the amino-terminal Met and the subsequent 7 residues of ⁇ -galactosidase so that a hybrid protein is produced, and pIN vectors.
- Bluescript® Stratagene
- HURP multifunctional E. coli cloning and expression vectors
- pIN vectors See, e.g., Van Heeke. G. and S.M. Schuster (1989) J. Biol. Chem.
- pGEX vectors may also be used to express foreign polypeptides as fusion proteins with glutathione S-transferase (GST).
- GST glutathione S-transferase
- fusion proteins are soluble and can easily be purified from lysed cells by adsorption to glutathione-agarose beads followed by elution in the presence of free glutathione.
- Proteins made in such systems may be designed to include heparin, thrombin. or factor XA protease cleavage sites so that the cloned polypeptide of interest can be released from the GST moiety at will.
- a number of vectors containing constitutive or inducible promoters such as alpha factor, alcohol oxidase, and PGH, may be used.
- constitutive or inducible promoters such as alpha factor, alcohol oxidase, and PGH
- the expression of sequences encoding HURP may be driven by any of a number of promoters.
- viral promoters such as the 35S and 19S promoters of CaMV may be used alone or in combination with the omega leader sequence from TMV.
- plant promoters such as the small subunit of RUBISCO or heat shock promoters may be used.
- plant promoters such as the small subunit of RUBISCO or heat shock promoters may be used.
- These constructs can be introduced into plant cells by direct DNA transformation or pathogen-mediated transfection. Such techniques are described in a number of generally available reviews. (See, e.g., Hobbs, S. or Murry. L.E. in McGraw Hill Yearbook of Science and Technology (1992) McGraw Hill, New York, NY; pp. 191-196.)
- An insect system may also be used to express HURP.
- Autographa californica nuclear polyhedrosis virus (AcNPV) is used as a vector to express foreign genes in Spodoptera frugiperda cells or in Trichoplusia larvae.
- the sequences encoding HURP may be cloned into a non-essential region of the virus, such as the polyhedrin gene, and placed under control of the polyhedrin promoter. Successful insertion of sequences encoding HURP will render the polyhedrin gene inactive and produce recombinant virus lacking coat protein.
- the recombinant viruses may then be used to infect, for example, S.
- a number of viral-based expression systems may be utilized.
- sequences encoding HURP may be ligated into an adenovirus transcription translation complex consisting of the late promoter and tripartite leader sequence. Insertion in a non-essential El or E3 region of the viral genome may be used to obtain a viable virus which is capable of expressing HURP in infected host cells.
- transcription enhancers such as the Rous sarcoma virus (RSV) enhancer
- RSV Rous sarcoma virus
- HACs Human artificial chromosomes
- 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.
- Specific initiation signals may also be used to achieve more efficient translation of sequences encoding HURP. Such signals include the ATG initiation codon and adjacent sequences. In cases where sequences encoding HURP and its initiation codon and upstream 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 the ATG initiation codon should be provided. Furthermore, the initiation codon should be in the correct reading frame to ensure translation of the entire insert. Exogenous translational elements and initiation codons may be of various origins, both natural and synthetic. The efficiency of expression may be enhanced by the inclusion of enhancers appropriate for the particular cell system used. (See, e.g., Scharf. D. et al. (1994) Results Probl. Cell Differ. 20:125-162.)
- 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.
- modifications of the polypeptide include, but are not limited to, acetylation, carboxylation, glycosylation, phosphorylation, lipidation, and acylation.
- Post-translational processing which cleaves a "prepro" form of the protein may also be used to facilitate correct insertion, folding, and/or function.
- Different host cells which have specific cellular machinery and characteristic mechanisms for post-translational activities (e.g., CHO, HeLa. MDCK, HEK293, and WI38), are available from the American Type Culture Collection (ATCC, Bethesda, MD) and may be chosen to ensure the correct modification and processing of the foreign protein.
- cell lines capable of stably expressing HURP can be transformed 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 selection, and its presence allows growth and recovery of cells which successfully express the introduced sequences.
- Resistant clones of stably transformed cells may be proliferated using tissue culture techniques appropriate to the cell type.
- 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 genes and adenine phosphoribosyltransferase genes, which can be employed in tk or apr cells, respectively. (See, e.g., Wigler, M. et al. (1977) Cell 11 :223-232; and Lowy, I. et al.
- antimetabolite, antibiotic, or herbicide resistance can be used as the basis for selection.
- dhfr confers resistance to methotrexate
- npt confers resistance to the aminoglycosides neomycin and G-418
- als or pat confer resistance to chlorsulfuron and phosphinotricin acetyltransferase, respectively.
- Green fluorescent proteins (GFP) (Clontech, Palo Alto, CA) are also used (See, e.g., Chalfie. M. et al. (1994) Science 263:802-805.) 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, CA. et al. (1995) Methods Mol. Biol. 55:121-131.)
- marker gene expression suggests that the gene of interest is also present, the presence and expression of the gene may need to be confirmed.
- sequence encoding HURP is inserted within a marker gene sequence
- transformed cells containing sequences encoding HURP can be identified by the absence of marker gene function.
- a marker gene can be placed in tandem with a sequence encoding HURP 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.
- host cells which contain the nucleic acid sequence encoding HURP and express HURP 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 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. The presence of polynucleotide sequences encoding HURP can be detected by
- Nucleic acid amplification based assays involve the use of oligonucleotides or oligomers based on the sequences encoding HURP to detect transformants containing DNA or RNA encoding HURP.
- a variety of protocols for detecting and measuring the expression of HURP, using either polyclonal or monoclonal antibodies specific for the protein, 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 HURP is preferred, but a competitive binding assay may be employed.
- a competitive binding assay may be employed.
- Means for producing labeled hybridization or PCR probes for detecting sequences related to polynucleotides encoding HURP include oligolabeling, nick translation, end-labeling, or PCR amplification using a labeled nucleotide.
- the sequences encoding HURP, or any fragments thereof may be cloned into a vector for the production of an mRNA probe.
- RNA polymerase such as T7, T3, or SP6 and labeled nucleotides.
- T7, T3, or SP6 RNA polymerase
- RNA polymerase such as T7, T3, or SP6
- 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.
- Host cells transformed with nucleotide sequences encoding HURP 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 contained intracellularly depending on the sequence and/or the vector used.
- expression vectors containing polynucleotides which encode HURP may be designed to contain signal sequences which direct secretion of HURP through a prokaryotic or eukaryotic cell membrane.
- Other constructions may be used to join sequences encoding HURP to nucleotide sequences encoding a polypeptide domain which will facilitate purification of soluble proteins.
- Such purification facilitating domains include, but are not limited to, metal chelating peptides such as histidine-tryptophan modules that allow purification on immobilized metals, protein A domains that allow purification on immobilized immunoglobulin, and the domain utilized in the FLAGS extension/affinity purification system (Immunex Corp., Seattle, WA).
- metal chelating peptides such as histidine-tryptophan modules that allow purification on immobilized metals
- protein A domains that allow purification on immobilized immunoglobulin
- the domain utilized in the FLAGS extension/affinity purification system Immunex Corp., Seattle, WA.
- cleavable linker sequences such as those specific for Factor XA or enterokinase (Invitrogen, San Diego, CA)
- One such expression vector provides for expression of a fusion protein containing HURP and a nucleic acid encoding 6 histidine residues preceding a thioredoxin or an enterokinase cleavage site.
- the histidine residues facilitate purification on immobilized metal ion affinity chromatography.
- IMAC immobilized metal ion affinity chromatography
- the enterokinase cleavage site provides a means for purifying HURP from the fusion protein. (See, e.g., Kroll, D.J. et al. (1993) DNA Cell Biol. 12:441-453.)
- Fragments of HURP may be produced not only by recombinant production, but also by direct peptide synthesis using solid-phase techniques. (See, e.g., Creighton, T.E. (1984) Protein: Structures and Molecular Properties, pp. 55-60, W.H. Freeman and Co., New York. NY.) Protein synthesis may be performed by manual techniques or by automation. Automated synthesis may be achieved, for example, using the Applied Biosystems 431 A Peptide Synthesizer (Perkin Elmer). Various fragments of HURP may be synthesized separately and then combined to produce the full length molecule.
- HURP-1 is expressed in cancerous, inflamed, fetal/proliferating, and reproductive tissue. Therefore, HURP-1 appears to play a role in cancer, autoimmune/inflammatory disorders, reproductive disorders, and developmental disorders.
- Chemical and structural homology exists between HURP-2 and frizzled 6 putative transmembrane receptor from mouse (GI 1 151256).
- HURP-2 is expressed in cancerous, inflamed, fetal/proliferating, and reproductive tissue. Therefore, HURP-2 appears to play a role in cancer, autoimmune/inflammatory disorders, reproductive disorders, and developmental disorders.
- HURP-3 Chemical and structural homology exists among HURP-3, IgE receptor ⁇ -subunit protein from rat (GI 204117), and CD20 protein from human (GI 179308).
- HURP-3 is expressed in cancerous, inflamed, small intestine, and colon tissue. Therefore, HURP-3 appears to play a role in cancer, autoimmune/inflammatory disorders, and gastrointestinal disorders.
- HURP-4 is expressed in cancerous, inflamed, hematopoietic/immune, and gastrointestinal tissue. Therefore, HURP-4 appears to play a role in cancer, autoimmune/inflammatory disorders, and gastrointestinal disorders.
- HURP-5 Chemical and structural homology exists between HURP-5 and CGRP-receptor component protein from mouse (GI 2599066). In addition, HURP-5 is expressed in cancerous and inflamed tissue. Therefore, HURP-5 appears to play a role in cancer, autoimmune/inflammatory disorders, and reproductive disorders.
- HURP-6 Chemical and structural homology exists between HURP-6 and signal recognition particle receptor ⁇ subunit from mouse (GI 600886).
- HURP-6 is expressed in cancerous, inflamed, reproductive, and gastrointestinal tissue. Therefore, HURP-6 appears to play a role in cancer, autoimmune/inflammatory disorders, reproductive disorders, and gastrointestinal disorders.
- HURP-7 is expressed in cancerous, inflamed, reproductive and gastrointestinal tissues. Therefore, HURP-7 appears to play a role in cancer, autoimmune/inflammatory disorders, reproductive disorders, and gastrointestinal disorders.
- Chemical and structural homology exists between HURP-8 and T-cell receptor ⁇ from human (GI 1100182).
- HURP-8 is expressed in cancerous, inflamed, hematopoietic/immune, and gastrointestinal tissue. Therefore, HURP-8 appears to play a role in cancer, autoimmune/inflammatory disorders, and gastrointestinal disorders.
- an antagonist of HURP may be administered to a subject to treat or prevent a cancer.
- a cancer may include, but is not limited to, 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, and uterus.
- an antibody which specifically binds HURP may be used directly as an antagonist or indirectly as a targeting or delivery mechanism for bringing a pharmaceutical agent to cells or tissue which express HURP.
- a vector expressing the complement of the polynucleotide encoding HURP may be administered to a subject to treat or prevent a cancer including, but not limited to, those described above.
- an antagonist of HURP may be administered to a subject to treat or prevent an autoimmune/inflammatory disorder.
- an autoimmune/inflammatory disorder Such an _ . _
- autoimmune/inflammatory disorder may include, but is not limited to, AIDS, Addison's disease, adult respiratory distress syndrome, allergies, ankylosing spondylitis, amyloidosis, anemia, asthma, atherosclerosis, autoimmune hemolytic anemia, autoimmune thyroiditis, bronchitis, cholecystitis, contact dermatitis, Crohn's disease, atopic dermatitis, dermatomyositis.
- diabetes mellitus emphysema, erythema nodosum, atrophic gastritis, glomerulonephritis, Goodpasture's syndrome, gout, Graves' disease, Hashimoto's thyroiditis, hypereosinophilia, irritable bowel syndrome, lupus erythematosus, multiple sclerosis, myasthenia gravis, myocardial or pericardial inflammation, osteoarthritis, osteoporosis, pancreatitis, polymyositis, rheumatoid arthritis, scleroderma, Sj ⁇ gren's syndrome, systemic anaphylaxis, systemic lupus erythematosus, systemic sclerosis, ulcerative colitis, Werner syndrome, and complications of cancer, hemodialysis, and extracorporeal circulation; viral, bacterial, fungal, parasitic, protozoal. and helminthic infections; and trauma.
- trauma
- a vector expressing the complement of the polynucleotide encoding HURP may be administered to a subject to treat or prevent an autoimmune/inflammatory disorder including, but not limited to, those described above.
- an antagonist of HURP-1, HURP-2, HURP-5, HURP-6, or HURP-7 may be administered to a subject to treat or prevent a reproductive disorder.
- a reproductive disorder may include, but is not limited to, disorders of prolactin production; infertility, including tubal disease, ovulatory defects, and endometriosis; disruptions of the estrous cycle, disruptions of the menstrual cycle, polycystic ovary syndrome, ovarian hyperstimulation syndrome, endometrial and ovarian tumors, autoimmune disorders, ectopic pregnancy, and teratogenesis; cancer of the breast, fibrocystic breast disease, and galactorrhea; disruptions of spermatogenesis, abnormal sperm physiology, cancer of the testis, cancer of the prostate, benign prostatic hyperplasia, and prostatitis, carcinoma of the male breast and gynecomastia.
- an antibody which specifically binds HURP-1, HURP-2, HURP-5, HURP-6, or HURP-7 may be used directly as an antagonist or indirectly as a targeting or delivery mechanism for bringing a pharmaceutical agent to cells or tissue which express HURP-1, HURP-2, HURP-5, HURP- 6, or HURP-7.
- a vector expressing the complement of the polynucleotide encoding HURP-1, HURP-2, HURP-5, HURP-6, or HURP-7 may be administered to a subject to treat or prevent a reproductive disorder including, but not limited to. those described above.
- a gastrointestinal disorder may include, but is not limited to, dysphagia, peptic esophagitis, esophageal spasm, esophageal stricture, esophageal carcinoma, dyspepsia, indigestion, gastritis, gastric carcinoma, anorexia, nausea, emesis, gastroparesis, antral or pyloric edema, abdominal angina, pyrosis, gastroenteritis, intestinal obstruction, infections of the intestinal tract, peptic ulcer, cholelithiasis, cholecystitis, cholestasis, pancreatitis, pancreatic carcinoma, biliary tract disease, hepatitis, hyperbilirubinemia.
- an antibody which specifically binds HURP-3, HURP-4. HURP-6, or HURP-7 may be used directly as an antagonist or indirectly as a targeting or delivery mechanism for bringing a pharmaceutical agent to cells or tissue which express HURP-3, HURP-4, HURP-6, or HURP-7.
- a vector expressing the complement of the polynucleotide encoding HURP-3, HURP-4, HURP-6, or HURP-7 may be administered to a subject to treat or prevent a gastrointestinal disorder including, but not limited to. those described above.
- HURP-8 or a fragment or derivative thereof may be administered to a subject to treat or prevent a gastrointestinal disorder.
- gastrointestinal disorders can include, but are not limited to, dysphagia, peptic esophagitis, esophageal spasm, esophageal stricture, esophageal carcinoma, dyspepsia, indigestion, gastritis, gastric carcinoma, anorexia, nausea, emesis, gastroparesis, antral or pyloric edema, abdominal angina, pyrosis, gastroenteritis, intestinal obstruction, infections of the intestinal tract, peptic ulcer, cholelithiasis, cholecystitis, cholestasis, pancreatitis, pancreatic carcinoma, biliary tract disease, hepatitis, hyperbilirubinemia, cirrhosis, passive congestion of the liver, hepatoma.
- infectious colitis ulcerative colitis, ulcerative proctitis, Crohn's disease, Whipple ' s disease, Mallory- Weiss syndrome, colonic carcinoma, colonic obstruction, irritable bowel syndrome, short bowel syndrome, diarrhea, constipation, gastrointestinal hemorrhage, and AIDS enteropathy.
- a vector capable of expressing HURP-8 or a fragment or derivative thereof may be administered to a subject to treat or prevent a gastrointestinal disorder including, but not limited to, those described above.
- a pharmaceutical composition comprising a substantially purified HURP-8 in conjunction with a suitable pharmaceutical carrier may be administered to a subject to treat or prevent a gastrointestinal disorder including, but not limited to. those provided above.
- an agonist which modulates the activity of HURP-8 may be administered to a subject to treat or prevent a gastrointestinal disorder including, but not limited to, those listed above.
- HURP-1 or HURP-2 or a fragment or derivative thereof may be administered to a subject to treat or prevent a developmental disorder.
- developmental disorders can include, but are not limited to, renal tubular acidosis, anemia, Cushing ' s syndrome, achondroplastic dwarfism, Duchenne and Becker muscular dystrophy, epilepsy, gonadal dysgenesis, WAGR syndrome, 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, spinal bifida. and congenital glaucoma, cataract, or sensorineural hearing loss.
- a vector capable of expressing HURP-1, HURP-2, or a fragment or derivative thereof may be administered to a subject to treat or prevent a developmental disorder including, but not limited to, those described above.
- a pharmaceutical composition comprising a substantially purified HURP-1 or HURP-2 in conjunction with a suitable pharmaceutical carrier may be administered to a subject to treat or prevent a developmental disorder including, but not limited to, those provided above.
- an agonist which modulates the activity of HURP-1 or HURP-2 may be administered to a subject to treat or prevent a developmental disorder O 99/413
- 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.
- An antagonist of HURP may be produced using methods which are generally known in the art. In particular, purified HURP may be used to produce antibodies or to screen libraries of pharmaceutical agents to identify those which specifically bind HURP.
- Antibodies to HURP 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 especially preferred for therapeutic use.
- various hosts including goats, rabbits, rats, mice, humans, and others may be immunized by injection with HURP or with any fragment or oligopeptide thereof which has immunogenic properties.
- various adjuvants may be used to increase immunological response.
- 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.
- BCG Bacilli Calmette-Guerin
- Corynebacterium parvum are especially preferable.
- the oligopeptides, peptides, or fragments used to induce antibodies to HURP have an amino acid sequence consisting of at least about 5 amino acids, and, more preferably, 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 and contain the entire amino acid sequence of a small, naturally occurring molecule. Short stretches of HURP amino acids may be fused with those of another protein, such as KLH, and antibodies to the chimeric molecule may be O 99/413
- Monoclonal antibodies to HURP 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.
- the hybridoma technique the human B-cell hybridoma technique
- 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. 80:2026-2030; and Cole, S.P. et al. (1984) Mol. Cell Biol. 62:109-120.
- 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.
- techniques developed for the production of single chain antibodies may be adapted, using methods known in the art, to produce HURP-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. 88:10134-10137.)
- 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. 86: 3833-3837; and Winter, G. et al. (1991) Nature 349:293-299.)
- Antibody fragments which contain specific binding sites for HURP may also be generated.
- 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.
- Fab expression libraries may be constructed to allow rapid and easy identification of monoclonal Fab fragments with the desired specificity.
- 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 HURP and its specific antibody. A two-site, monoclonal-based immunoassay utilizing monoclonal antibodies reactive to two non-interfering HURP epitopes is preferred, but a competitive binding assay may also be employed. (Maddox, supra.)
- the polynucleotides encoding HURP may be used for therapeutic purposes.
- the complement of the polynucleotide encoding HURP may be used in situations in which it would be desirable to block the transcription of the mRNA.
- cells may be transformed with sequences complementary to polynucleotides encoding HURP.
- complementary molecules or fragments may be used to modulate HURP activity, or to achieve regulation of gene function.
- sense or antisense oligonucleotides or larger fragments can be designed from various locations along the coding or control regions of sequences encoding HURP.
- 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. Methods which are well known to those skilled in the art can be used to construct vectors which will express nucleic acid sequences complementary to the polynucleotides of the gene encoding HURP. (See, e.g., Sambrook, supra: and Ausubel, supra.)
- Genes encoding HURP can be turned off by transforming a cell or tissue with expression vectors which express high levels of a polynucleotide, or fragment thereof, encoding HURP. Such constructs may be used to introduce untranslatable sense or antisense sequences into a cell. Even in the absence of integration into the DNA, such vectors may continue to transcribe RNA molecules until they are disabled by endogenous nucleases. Transient expression may last for a month or more with a non-replicating vector, and may last even longer if appropriate replication elements are part of the vector system.
- modifications of gene expression can be obtained by designing complementary sequences or antisense molecules (DNA, RNA, or PNA) to the control, 5', or regulatory regions of the gene encoding HURP.
- Oligonucleotides derived from the transcription initiation site e.g., between about positions -10 and +10 from the start site, are preferred.
- 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.
- a complementary sequence or antisense molecule may also be designed to block translation of mRNA by preventing the transcript from binding to ribosomes.
- 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.
- engineered hammerhead motif ribozyme molecules may specifically and efficiently catalyze endonucleolytic cleavage of sequences encoding HURP.
- 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.
- RNA sequences of between 15 and 20 ribonucleotides 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.
- RNA 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 HURP. 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.
- 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 O-methyl rather than phosphodiesterase linkages within the backbone of the molecule.
- 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) Nature Biotechnology 15:462-466.)
- any of the therapeutic methods described above may be applied to any subject in need of such therapy, including, for example, mammals such as dogs, cats, cows, horses, rabbits, monkeys, and most preferably, humans.
- An additional embodiment of the invention relates to the administration of a pharmaceutical or sterile composition, in conjunction with a pharmaceutically acceptable carrier, for any of the therapeutic effects discussed above.
- Such pharmaceutical compositions may consist of HURP, antibodies to HURP, and mimetics, agonists, antagonists, or inhibitors of HURP.
- the compositions may be administered alone or in combination with at least one other agent, such as a stabilizing compound, which may be administered in any sterile, biocompatible pharmaceutical carrier including, but not limited to, saline, buffered saline, dextrose, and water.
- the compositions may be administered to a patient alone, or in combination with other agents, drugs, or hormones.
- 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, transdermal, subcutaneous, intraperitoneal, intranasal, enteral, topical, sublingual, or rectal means.
- these pharmaceutical compositions may contain suitable pharmaceutically-acceptable carriers comprising excipients and auxiliaries which facilitate processing of the active compounds into preparations which can be used pharmaceutically. Further details on techniques for formulation and administration may be found in the latest edition of Remington's Pharmaceutical Sciences (Maack Publishing Co., Easton, PA).
- compositions for oral administration can be formulated using pharmaceutically acceptable carriers well known in the art in dosages suitable for oral administration.
- Such carriers enable the pharmaceutical compositions to be formulated as tablets, pills, dragees, capsules, liquids, gels, syrups, slurries, suspensions, and the like, for ingestion by the patient.
- compositions for oral use can be obtained through combining active compounds with solid excipient and processing the resultant mixture of granules
- auxiliaries can be added, if desired.
- Suitable excipients include carbohydrate or protein fillers, such as sugars, including lactose, sucrose, mannitol, and sorbitol; starch from corn, wheat, rice, potato, or other plants; cellulose, such as methyl cellulose, hydroxypropylmethyl-cellulose, or sodium carboxymethylcellulose; gums, including arabic and tragacanth; and proteins, such as gelatin and collagen.
- disintegrating or solubilizing agents may be added, such as the cross-linked polyvinyl pyrrolidone, agar, and alginic acid or a salt thereof, such as sodium alginate.
- Dragee cores may be used in conjunction with suitable coatings, such as concentrated sugar solutions, which may also contain gum arabic, talc, polyvinylpyrrolidone, carbopol gel, polyethylene glycol, and/or titanium dioxide, lacquer solutions, and suitable organic solvents or solvent mixtures.
- Dyestuffs or pigments may be added to the tablets or dragee coatings for product identification or to characterize the quantity of active compound, i.e., dosage.
- Pharmaceutical preparations which can be used orally include push-fit capsules made of gelatin, as well as soft, sealed capsules made of gelatin and a coating, such as glycerol or sorbitol.
- Push-fit capsules can contain active ingredients mixed with fillers or binders, such as lactose or starches, lubricants, such as talc or magnesium stearate, and, optionally, stabilizers.
- the active compounds may be dissolved or suspended in suitable liquids, such as fatty oils, liquid, or liquid polyethylene glycol with or without stabilizers.
- compositions suitable for parenteral administration may be O 99/41375
- Aqueous injection suspensions may contain substances which increase the viscosity of the suspension, such as sodium carboxymethyl cellulose, sorbitol, or dextran.
- suspensions of the active compounds may be prepared as appropriate oily injection suspensions.
- Suitable lipophilic solvents or vehicles include fatty oils, such as sesame oil, or synthetic fatty acid esters, such as ethyl oleate, triglycerides, or liposomes.
- Non-lipid polycationic amino polymers may also be used for delivery.
- the suspension may also contain suitable stabilizers or agents to increase the solubility of the compounds and allow for the preparation of highly concentrated solutions.
- penetrants appropriate to the particular barrier to be permeated are used in the formulation.
- penetrants are generally known in the art.
- compositions of the present invention may be manufactured in a manner that is known in the art, e.g., by means of conventional mixing, dissolving, granulating, dragee-making, levigating, emulsifying, encapsulating, entrapping, or lyophilizing processes.
- the pharmaceutical composition may be provided as a salt and can be formed with many acids, including but not limited to, hydrochloric, sulfuric, acetic, lactic, tartaric, malic, and succinic acid. Salts tend to be more soluble in aqueous or other protonic solvents than are the corresponding free base forms.
- the preferred preparation may be a lyophilized powder which may contain any or all of the following: 1 mM to 50 mM histidine, 0.1% to 2% sucrose, and 2% to 7% mannitol, at a pH range of 4.5 to 5.5, that is combined with buffer prior to use.
- 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.
- 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, 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.
- a therapeutically effective dose refers to that amount of active ingredient, for example HURP or fragments thereof, antibodies of HURP, and agonists, antagonists or inhibitors of HURP, 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 therapeutic to toxic effects is the therapeutic index, and it can be expressed as the ED50/LD50 ratio.
- Pharmaceutical 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. 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 pharmaceutical 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.
- 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.
- antibodies which specifically bind HURP may be used for the diagnosis of disorders characterized by expression of HURP, or in assays to monitor patients being treated with HURP or agonists, antagonists, or inhibitors of HURP.
- Antibodies useful for diagnostic purposes may be prepared in the same manner as described above for therapeutics. Diagnostic assays for HURP include methods which utilize the antibody and a label to detect HURP 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 ait and may be used.
- HURP human immunosorbent protein
- ELISAs ELISAs
- RIAs RIAs
- FACS fluorescence-activated cell sorting
- HURP expression normal or standard values for HURP expression are established by combining body fluids or cell extracts taken from normal mammalian subjects, preferably human, with antibody to HURP under conditions suitable for complex formation The amount of standard complex formation may be quantitated by various methods, preferably by photometric means. Quantities of HURP 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.
- the polynucleotides encoding HURP may be 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 quantitate gene expression in biopsied tissues in which expression of HURP may be correlated with disease.
- the diagnostic assay may be used to determine absence, presence, and excess expression of HURP, and to monitor regulation of HURP levels during therapeutic intervention.
- hybridization with PCR probes which are capable of detecting polynucleotide sequences, including genomic sequences, encoding HURP or closely related molecules may be used to identify nucleic acid sequences which encode HURP.
- 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 (maximal, high, intermediate, or low), will determine whether the probe identifies only naturally occurring sequences encoding HURP, alleles, or related sequences.
- Probes may also be used for the detection of related sequences, and should preferably contain at least 50% of the nucleotides from any of the HURP encoding sequences.
- the hybridization probes of the subject invention may be DNA or RNA and may be derived from the sequence of SEQ ID NO:9, SEQ ID NO: 10, SEQ ID NO:l 1, SEQ ID NO:12, SEQ ID NO:13, SEQ ID NO:14, SEQ ID NO:15, SEQ ID NO: 16, or from genomic sequences including promoters, enhancers, and introns of the HURP gene.
- Means for producing specific hybridization probes for DNAs encoding HURP include the cloning of polynucleotide sequences encoding HURP or HURP 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 32 P or 35 S, or by enzymatic labels, such as alkaline phosphatase coupled to the probe via avidin/biotin coupling systems, and the like.
- Polynucleotide sequences encoding HURP may be used for the diagnosis of a disorder associated with expression of HURP.
- a disorder associated with expression of HURP include, but are not limited to, cancers, such as 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, and uterus; and autoimmune/inflammatory disorders such as AIDS, Addison's disease, adult respiratory distress syndrome, allergies, ankylosing spondylitis, amyloidosis, anemia, asthma, atherosclerosis,
- Polynucleotide sequences encoding HURP-1, HURP-2, HURP-5, HURP-6, and HURP-7 may be used for the diagnosis of a disorder associated with expression of HURP- 1 , HURP-2, HURP-5, HURP-6, and HURP-7 respectively.
- reproductive disorders such as disorders of prolactin production; infertility, including tubal disease, ovulatory defects, and endometriosis; disruptions of the estrous cycle, disruptions of the menstrual cycle, polycystic ovary syndrome, ovarian hyperstimulation syndrome, endometrial and ovarian tumors, autoimmune disorders, ectopic pregnancy, and teratogenesis; cancer of the breast, fibrocystic breast disease, and galactorrhea; disruptions of spermatogenesis.
- reproductive disorders such as disorders of prolactin production
- infertility including tubal disease, ovulatory defects, and endometriosis
- disruptions of the estrous cycle disruptions of the menstrual cycle
- polycystic ovary syndrome including tubal disease, ovulatory defects, and endometriosis
- disruptions of the estrous cycle disruptions of the menstrual cycle
- polycystic ovary syndrome ovarian hyperstimulation syndrome
- Polynucleotide sequences encoding HURP-3, HURP-4, HURP-6, HURP-7, and HURP-8 may be used for the diagnosis of a disorder associated with expression of HURP-3, HURP-4. HURP-6, HURP-7, and HURP-8 respectively.
- Such a disorder include, but are not limited to, gastrointestinal disorders such as dysphagia, peptic esophagitis, esophageal spasm, esophageal stricture, esophageal carcinoma, dyspepsia, indigestion, gastritis, gastric carcinoma, anorexia, nausea, emesis, gastroparesis, antral or pyloric edema, abdominal angina, pyrosis, gastroenteritis, intestinal obstruction, infections of the intestinal tract, peptic ulcer, cholelithiasis, cholecystitis, cholestasis, pancreatitis, pancreatic carcinoma, biliary tract disease, hepatitis, hyperbilirubinemia, cirrhosis, passive congestion of the liver, hepatoma, infectious colitis, ulcerative colitis, ulcerative proctitis, Crohn's disease, Whipple's disease, Mallory- Weiss syndrome, colonic
- Polynucleotide sequences encoding HURP-1 and HURP-2 may be used for the diagnosis of a disorder associated with expression of HURP-1 and HURP-2 respectively.
- a disorder include, but are limited to, developmental disorders such as renal tubular acidosis, anemia, Cushing's syndrome, achondroplastic dwarfism, Duchenne and Becker muscular dystrophy, epilepsy, gonadal dysgenesis, WAGR syndrome, 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, spinal bifida, and congenital glaucoma, cataract, or sensorineural hearing loss.
- developmental disorders such as renal tubular acidosis, anemia, Cushing's
- the polynucleotide sequences encoding HURP may be used in Southern or northern analysis, dot blot, or other membrane-based technologies; in PCR technologies; in dipstick, pin, and ELISA assays; and in microarrays utilizing fluids or tissues from patients to detect altered HURP expression. Such qualitative or quantitative methods are well known in the art.
- the nucleotide sequences encoding HURP may be useful in assays that detect the presence of associated disorders, particularly those mentioned above.
- the nucleotide sequences encoding HURP may be 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 quantitated 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 HURP 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.
- 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 HURP, 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.
- 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.
- the presence of a relatively high amount of transcript 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.
- oligonucleotides designed from the sequences encoding HURP 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 HURP, or a fragment of a polynucleotide complementary to the polynucleotide encoding HURP, 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 quantitation of closely related DNA or RNA sequences.
- Methods which may also be used to quantitate the expression of HURP include radiolabeling or biotinylating nucleotides, coamplification of a control nucleic acid, and interpolating results from standard curves.
- radiolabeling or biotinylating nucleotides See, e.g., Melby, P.C. et al. (1993) J. Immunol. Methods 159:235-244; and Duplaa, C. et al. (1993) Anal. Biochem. 229-236.
- the speed of quantitation of multiple samples may be accelerated by running the assay in an ELISA format where the oligomer of interest is presented in various dilutions and a spectrophotometric or colorimetric response gives rapid quantitation.
- oligonucleotides or longer fragments derived from any of the polynucleotide sequences described herein may be used as targets in a microarray.
- the microarray can be used to monitor the expression level of large numbers of genes simultaneously and 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, and to develop and monitor the activities of therapeutic agents.
- the microarray is prepared and used according to methods known in the art.
- methods known in the art See, e.g., Chee et al. (1995) PCT application WO95/11995; Lockhart, D. J. et al. (1996) Nat. Biotech. 14:1675-1680; and Schena, M. et al. (1996) Proc. Natl. Acad. Sci. 93:10614-10619.
- the microarray is preferably composed of a large number of unique single- stranded nucleic acid sequences, usually either synthetic antisense oligonucleotides or fragments of cDNAs.
- the oligonucleotides are preferably about 6 to 60 nucleotides in length, more preferably about 15 to 30 nucleotides in length, and most preferably about 20 to 25 nucleotides in length. It may be preferable to use oligonucleotides which are about 7 to 10 nucleotides in length.
- the microarray may contain oligonucleotides which cover the known 5' or 3' sequence, sequential oligonucleotides which cover the full length sequence, or unique oligonucleotides selected from particular areas along the length of the sequence.
- Polynucleotides used in the microarray may be oligonucleotides specific to a gene or genes of interest. Oligonucleotides can also be specific to one or more unidentified cDNAs associated with a particular cell type or tissue type. It may be appropriate to use pairs of oligonucleotides on a microarray.
- the first oligonucleotide in each pair differs from the second oligonucleotide by one nucleotide. This nucleotide is preferably located in the center of the sequence.
- the second oligonucleotide serves as a control.
- the number of oligonucleotide pairs may range from about 2 to 1,000,000.
- the gene of interest is examined using a computer algorithm which starts at the 5' end, or, more preferably, at the 3' end of the nucleotide sequence.
- the algorithm identifies oligomers of defined length that are unique to the gene, have a GC content within a range suitable for hybridization, and lack secondary structure that may interfere with hybridization.
- the oligomers may be synthesized on a substrate using a light-directed chemical process. (See, e.g., Chee et al., supra.)
- the substrate may be any suitable solid support, e.g., paper, nylon, any other type of membrane, or a filter, chip, or glass slide.
- the oligonucleotides may be synthesized on the surface of the substrate using a chemical coupling procedure and an ink jet application apparatus.
- a chemical coupling procedure and an ink jet application apparatus See, e.g., Baldeschweiler et al. (1995) PCT application WO95/251116.
- An array analogous to a dot or slot blot may be used to arrange and link cDNA fragments or oligonucleotides to the surface of a substrate using a vacuum system or thermal, UV, mechanical, or chemical bonding procedures.
- An array may also be produced by hand or by using available devices, materials, and machines, e.g.
- the array may contain from 2 to 1,000,000 or any other feasible number of oligonucleotides.
- polynucleotides are extracted from a sample.
- the sample may be obtained from any bodily fluid, e.g., blood, urine, saliva, phlegm, gastric juices, cultured cells, biopsies, or other tissue preparations.
- the polynucleotides extracted from the sample are used to produce nucleic acid sequences complementary to the nucleic acids on the microarray. If the microarray contains cDNAs, antisense RNAs (aRNAs) are appropriate probes. Therefore, in one aspect, mRNA is reverse-transcribed to cDNA.
- aRNAs antisense RNAs
- the cDNA in the presence of fluorescent label, is used to produce fragment or oligonucleotide aRNA probes.
- the fluorescently labeled probes are incubated with the microarray so that the probes hybridize to the microarray oligonucleotides.
- Nucleic acid sequences used as probes can include polynucleotides, fragments, and complementary or antisense sequences produced using restriction enzymes, PCR, or other methods known in the art.
- Hybridization conditions can be adjusted so that hybridization occurs with varying degrees of complementarity.
- a scanner can be used to determine the levels and patterns of fluorescence after removal of any nonhybridized probes.
- the degree of complementarity and the relative abundance of each oligonucleotide sequence on the microarray can be assessed through analysis of the scanned images.
- a detection system may be used to measure the absence, presence, or level of hybridization for any of the sequences. (See, e.g., Heller, R.A. et al. (1997) Proc. Natl. Acad. Sci. 94:2150-2155.)
- nucleic acid sequences encoding HURP may be used to generate hybridization probes useful in mapping the naturally occurring genomic sequence.
- the sequences may be 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 (BACs), bacterial chromosome cDNA libraries.
- HACs human artificial chromosomes
- YACs yeast artificial chromosomes
- BACs bacterial artificial chromosomes
- PI constructions or single chromosome cDNA libraries.
- Fluorescent in situ hybridization may be correlated with other physical chromosome mapping techniques and genetic map data.
- FISH Fluorescent in situ hybridization
- Examples of genetic map data can be found in various scientific journals or at the Online Mendelian Inheritance in Man (OMIM) site. Correlation between the location of the gene encoding HURP on a physical chromosomal map and a specific disorder, or a predisposition to a specific disorder, may help define the region of DNA associated with that disorder.
- the nucleotide sequences of the invention may be used to detect differences in gene sequences among normal, carrier, and affected individuals.
- In situ hybridization of chromosomal preparations and physical mapping techniques 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 number or arm of a particular human chromosome is not known. New sequences can be assigned to chromosomal arms by physical mapping. This provides valuable information to investigators searching for disease genes using positional cloning or other gene discovery techniques. Once the disease or syndrome has been crudely localized by genetic linkage to a particular genomic region, e.g., AT to 1 lq22-23, any sequences mapping to that area may represent associated or regulatory genes for further investigation.
- HURP histone deacetylase
- HURP histone deacetylase
- 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 HURP and the agent being tested may be measured.
- 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, O 99/41375
- nucleotide sequences which encode HURP 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.
- the MENITUT03 cDNA library was constructed from malignant meningioma tissue, located in the right cerebellopontine angle of the brain, obtained from a 35 -year-old Caucasian female during a right suboccipital craniectomy.
- the frozen tissue was homogenized and lysed using a Brinkmann Homogenizer Polytron PT-3000 (Brinkmann Instruments, Westbury, NJ) in guanidinium isothiocyanate O 99/41375
- the mRNA was handled according to the recommended protocols in the Superscript Plasmid System for cDNA Synthesis and Plasmid Cloning (Cat. #18248-013, Gibco/BRL).
- the cDNAs were fractionated on a Sepharose CL4B column (Cat. #275105- 01 , Pharmacia), and those cDNAs exceeding 400 bp were ligated into pINC Y 1.
- the plasmid pINCY 1 was subsequently transformed into DH5 ⁇ TM competent cells (Cat. #18258-012, Gibco/BRL).
- Plasmid DNA was released from the cells and purified using the REAL Prep 96 plasmid kit (Catalog #26173; QIAGEN). This kit enabled the simultaneous purification of 96 samples in a 96-well block using multi-channel reagent dispensers.
- the recommended protocol was employed except for the following changes: 1) the bacteria were cultured in 1 ml of sterile Terrific Broth (Catalog #22711, Gibco/BRL) with carbenicillin at 25 mg/L and glycerol at 0.4%; 2) after inoculation, the cultures were incubated for 19 hours and at the end of incubation, the cells were lysed with 0.3 ml of lysis buffer; and 3) following isopropanol precipitation, the plasmid DNA pellet was resuspended in 0.1 ml of distilled water. After the last step in the protocol, samples were transferred to a 96-well block for storage at 4° C.
- the cDNAs were sequenced by the method of Sanger et al. (1975, J. Mol. Biol. 94:44 If), using a Hamilton Micro Lab 2200 (Hamilton, Reno, NV) in combination with Peltier Thermal Cyclers (PTC200 from MJ Research, Watertown, MA) and Applied Biosystems 377 DNA Sequencing Systems; and the reading frame was determined.
- the first algorithm was originally developed by D.J. Lipman and W.R. Pearson, (1985, Science 227:1435).
- the homologous regions of the nucleotide sequences are searched in a two step manner.
- the highest homologous regions are determined by calculating a matching score using a homology score table.
- the parameter 'Ktup' is used in this step to establish the minimum window size to be shifted for comparing two sequences. Ktup also sets the number of bases that must match to extract the highest homologous region among the sequences.
- no insertions or deletions are applied and the homology is displayed as an initial (INIT) value.
- the homologous regions are aligned to obtain the highest matching score by inserting a gap in order to add a probable deleted portion.
- the matching score obtained in the first step is recalculated using the homology score Table and the insertion score Table to an optimized (OPT) value in the final output.
- DNA homologies between two sequences can be examined graphically using the Harr method of constructing dot matrix homology plots. (Needleman, S.B. and Wunsch, CO. (1970) J. Mol. Biol 48:443.) This method produces a two-dimensional plot which can be useful in determining regions of homology versus regions of repetition.
- the second algorithm was developed by Applied Biosystems Inc. and has been incorporated into the Inherit 670 Sequence Analysis System.
- Pattern Specification Language developed by TRW Inc.
- TRW Inc. is used to determine regions of homology.
- window size There are three parameters that determine how the sequence comparisons are run: window size, window offset, and error tolerance.
- the DNA database is searched for sequences containing regions of homology and the appropriate sequences are scored with an initial value. Subsequently, these homologous regions are examined using dot matrix homology plots to determine regions of homology versus regions of repetition. Smith- Waterman alignments were used to display the results of the homology search.
- sequences from the cDNA clones were classified as to whether they are exact matches (regions of exact homology) homologous human matches (regions of high similarity, but not exact matches), homologous non-human matches (regions of high similarity present in species other than human), or nonmatches (no significant regions of homology to previously identified nucleotide sequences).
- Searches of the deduced polypeptides and peptides are done in a manner analogous to that done with the cDNA sequences.
- the sequence of the polypeptide is used as a query sequence and compared to the previously identified sequences contained in a database such as Swiss/Prot or the NBRF Protein database to find homologous polypeptides.
- These polypeptides are initially scored for homology using a homology score Table (Orcutt, B.C. and Dayhoff. M.O. Scoring Matrices, PIR Report MAT - 0285 (February 1985)) resulting in an INIT score.
- the homologous regions are aligned to obtain the highest matching scores by inserting a gap which adds a probable deleted portion.
- the matching score is recalculated using the homology score Table and the insertion score Table resulting in an optimized (OPT) score.
- OPT optimized
- Peptide and protein sequence homologies can also be ascertained using the Inherit 670 Sequence Analysis System in an analogous way to that used in DNA sequence homologies.
- Pattern Specification Language and parameter windows are used to search polypeptide databases for sequences containing regions of homology which are scored with an initial value. Subsequent examination with a dot-matrix homology plot determines regions of homology versus regions of repetition.
- nucleotide sequences and/or amino acid sequences of the Sequence Listing were used to query sequences in the GenBank, SwissProt, BLOCKS, and Pima II databases. These databases, which contain previously identified and annotated sequences, were searched for regions of homology using BLAST (Basic Local Alignment Search Tool). (See, e.g., Altschul, S.F. (1993) J. Mol. Evol. 36:290-300; and Altschul et al. (1990) J. Mol. Biol. 215:403-410.) O 99
- BLAST produced alignments of both nucleotide and amino acid sequences to determine sequence similarity. Because of the local nature of the alignments, BLAST was especially useful in determining exact matches or in identifying homologs which may be of prokaryotic (bacterial) or eukaryotic (animal, fungal, or plant) origin. Other algorithms could have been used when dealing with primary sequence patterns and secondary structure gap penalties. (See, e.g., Smith, T. et al. (1992) Protein Engineering 5:35-51.) The sequences disclosed in this application have lengths of at least 49 nucleotides and have no more than 12% uncalled bases (where N is recorded rather than A, C, G, or T).
- BLAST searched for matches between a query sequence and a database sequence.
- BLAST evaluated the statistical significance of any matches found, and reported only those matches that satisfy the user-selected threshold of significance.
- threshold was set at 10 "25 for nucleotides and 10 "8 for peptides.
- Incyte nucleotide sequences were searched against the GenBank databases for primate (pri), rodent (rod), and other mammalian sequences (mam), and deduced amino acid sequences from the same clones were then searched against GenBank functional protein databases, mammalian (mamp), vertebrate (vrtp), and eukaryote (eukp), for homology.
- sequences identified from cDNA libraries may be analyzed to identify those gene sequences encoding conserved protein motifs using an appropriate analysis program, e.g., the Block 2 Bioanalysis Program (Incyte, Palo Alto, CA).
- This motif analysis program based on sequence information contained in the Swiss-Prot Database and PROSITE, is a method of determining the function of uncharacterized proteins translated from genomic or cDNA sequences. (See, e.g., Bairoch, A. et al. (1997) Nucleic Acids Res. 25:217-221; and Attwood, T. K. et al. (1997) J. Chem. Inf. Comput. Sci.
- PROSITE may be used to identify common functional or structural domains in divergent proteins. The method is based on weight matrices. Motifs identified by this method are then calibrated against the SWISS-PROT database in order to obtain a measure of the chance distribution of the matches.
- HMMs Hidden Markov models
- HMMs have a formal probabilistic basis and use position-specific scores for amino acids or nucleotides. The algorithm continues to incorporate information from newly identified sequences to increase its motif analysis capabilities.
- 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.
- a membrane on which RNAs from a particular cell type or tissue have been bound See, e.g., Sambrook, supra, ch. 7; and Ausubel, F.M. et al. supra, ch. 4 and 16.
- Analogous computer techniques applying BLAST are used to search for identical or related molecules in nucleotide databases such as GenBank or LIFESEQTM database (Incyte Pharmaceuticals). This analysis is much faster than multiple membrane-based hybridizations.
- the sensitivity of the computer search can be modified to determine whether any particular match is categorized as exact or homologous.
- the basis of the search is the product score, which is defined as:
- the product score takes into account both the degree of similarity between two sequences and the length of the sequence match. For example, with a product score of 40, the match will be exact within a 1% to 2% error, and, with a product score of 70, the match will be exact. Homologous molecules are usually identified by selecting those which show product scores between 15 and 40, although lower scores may identify related molecules.
- the results of northern analysis are reported as a list of libraries in which the transcript encoding HURP occurs. Abundance and percent abundance are also reported. Abundance directly reflects the number of times a particular transcript is represented in a cDNA library, and percent abundance is abundance divided by the total number of sequences examined in the cDNA library.
- nucleic acid sequences of Incyte Clones 29167, 150629, 611082, 1223275, 1255202, 1261646, 2083528, and 1451415 were used to design oligonucleotide primers for extending partial nucleotide sequences to full length.
- one primer was synthesized to initiate extension of an antisense polynucleotide, and the other was synthesized to initiate extension of a sense polynucleotide.
- Primers were used to facilitate the extension of the known sequence "outward" generating amplicons containing new unknown nucleotide sequence for the region of interest.
- the initial primers were designed from the cDNA using OLIGO 4.06 (National Biosciences, Madison, MN), 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.
- High fidelity amplification was obtained by following the instructions for the XL- PCR kit (Perkin Elmer) and thoroughly mixing the enzyme and reaction mix. PCR was performed using the Peltier Thermal Cycler (PTC200; M.J. Research, Watertown, MA), beginning with 40 pmol of each primer and the recommended concentrations of all other components of the kit, with the following parameters:
- Step 1 94° C for 1 min (initial denaturation)
- Step 2 65° C for 1 min
- Step 3 68° C for 6 min
- Step 4 94° C for 15 sec
- Step 6 68° C for 7 min Step 7 Repeat steps 4 through 6 for an additional 15 cycles
- Step 8 94° C for 15 sec
- Step 9 65 ° C for 1 min
- Step 11 Repeat steps 8 through 10 for an additional 12 cycles Step 12 72° C for 8 min
- Step 13 4° C (and holding) A 5 ⁇ to 10 ⁇ l aliquot of the reaction mixture was analyzed by electrophoresis on a low concentration (about 0.6% to 0.8%) agarose mini-gel to determine which reactions were successful in extending the sequence. Bands thought to contain the largest products were excised from the gel, purified using QIAQuickTM (QIAGEN Inc.), and trimmed of overhangs using Klenow enzyme to facilitate religation and cloning.
- QIAQuickTM QIAGEN Inc.
- coli mixture was plated on Luria Bertani (LB) agar (See, e.g., Sambrook, supra. Appendix A, p. 1) containing 2x carbenicillin (2x carb). The following day, several colonies were randomly picked from each plate and cultured in 150 ⁇ l of liquid LB/2x Carb medium placed in an individual well of an appropriate commercially-available sterile 96-well microtiter plate. The following day, 5 ⁇ l of each overnight culture was transferred into a non-sterile 96-well plate and, after dilution 1:10 with water, 5 ⁇ l from each sample was transferred into a PCR array.
- LB Luria Bertani
- PCR amplification For PCR amplification, 18 ⁇ l of concentrated PCR reaction mix (3.3x) containing 4 units of rTth DNA polymerase, a vector primer, and one or both of the gene specific primers used for the extension reaction were added to each well. Amplification was performed using the following conditions:
- Step 1 94° C for 60 sec
- Step 2 94° C for 20 sec
- Step 3 55° C for 30 sec
- Step 5 Repeat steps 2 through 4 for an additional 29 cycles
- nucleotide sequences of SEQ ID NO:9, SEQ ID NO: 10, SEQ ID NO:l 1, SEQ ID NO:12, SEQ ID NO:13, SEQ ID NO:14, SEQ ID NO:15, and SEQ ID NO: 16 are used to obtain 5' regulatory sequences using the procedure above, oligonucleotides designed for 5' extension, and an appropriate genomic library.
- Hybridization probes derived from SEQ ID NO:9, SEQ ID NO: 10, SEQ ID NO:l 1, SEQ ID NO: 12, SEQ ID NO:13, SEQ ID NO:14, SEQ ID NO:15, and SEQ ID NO: 16 are employed to screen cDNAs, genomic DNAs, or mRNAs. Although the labeling of oligonucleotides, consisting of about 20 base pairs, is specifically described,
- Oligonucleotides are designed using state-of-the-art software such as OLIGO 4.06 (National Biosciences) and labeled by combining 50 pmol of each oiigomer, 250 ⁇ Ci of [ ⁇ - 32 P] adenosine triphosphate (Amersham, Chicago, IL), and T4 polynucleotide kinase (DuPont NEN ® , Boston, MA).
- the labeled oligonucleotides are substantially purified using a Sephadex G-
- Hybridization is carried out for 16 hours at 40 °C
- blots are sequentially washed at room temperature under increasingly stringent conditions up to 0.1 x saline sodium citrate and 0.5% sodium dodecyl sulfate.
- XOMAT ARTM film Kerat, Rochester, NY
- hybridization 5 patterns are compared visually.
- a chemical coupling procedure and an ink jet device can be used to synthesize array elements on the surface of a substrate.
- An array 0 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 by hand or using available methods and machines and contain any appropriate number of elements.
- nonhybridized probes are removed and a scanner used to determine the levels and patterns of fluorescence. The degree of complementarity and the relative abundance of each probe which hybridizes to an element on the microarray may be assessed through analysis of the scanned images.
- Full-length cDNAs, Expressed Sequence Tags (ESTs), or fragments thereof may comprise the elements of the microarray. Fragments suitable for hybridization can be selected using software well known in the art such as LASERGENETM.
- Full-length cDNAs, ESTs, or fragments thereof corresponding to one of the nucleotide sequences of the present invention, or selected at random from a cDNA library relevant to the present invention are arranged on an appropriate substrate, e.g., a glass slide.
- the cDNA is fixed to the slide using, e.g., UV cross-linking followed by thermal and chemical treatments and subsequent drying. (See, e.g., Schena, M. et al.
- Fluorescent probes are prepared and used for hybridization to the elements on the substrate.
- the substrate is analyzed by procedures described above.
- Sequences complementary to the HURP-encoding sequences, or any parts thereof, are used to detect, decrease, or inhibit expression of naturally occurring HURP. 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 and the coding sequence of HURP. 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 HURP-encoding transcript.
- HURP HUregulf growth factor receptor
- IPTG isopropyl beta-D- thiogalactopyranoside
- HURP-8 activity is demonstrated by measuring the binding of HURP-8 to rat brain acetylcholinesterase using affinity chromatography.
- Acetylcholinesterase/ligatin complexes are purified from rat brain membranes. The complexes are dissociated by dialysis against 5 mM HEPES, 0.5 M EGTA, pH 8.0 buffer overnight at 4°C, and ligatin-free acetylcholinesterase is purified.
- HURP-8 15 200-500 ⁇ g HURP-8 is covalently coupled to 1-2 ml of Affi-Gel 10 resin (Bio-Rad Laboratories) at 23 °C for two hours in 0.1 M Na phosphate, pH 7.0 buffer. Unreacted Affi-Gel 10 esters are saturated by incubation at 23 °C for one hour in 0.1 M glycine, pH 7.0 buffer.
- the affinity column is equilibrated in 10 mM HEPES, 3 mM CaCl 2 , 50 mM NaCl, 1 mM NaN 3 , pH 7.6 buffer. Rat brain acetylcholinesterase is applied to the column. 0 HURP-8 bound acetylcholinesterase can be released from the column by phosphohexose sugars at 10-40 mM.
- HURP substantially purified using PAGE electrophoresis (see, e.g., Harrington, 5 M.G. (1990) Methods Enzymol. 182:488-495), or other purification techniques, is used to immunize rabbits and to produce antibodies using standard protocols.
- the HURP amino acid sequence is analyzed using LASERGENETM software (DNASTAR Inc.) to determine regions of high immunogenicity, and a corresponding oligopeptide is synthesized and used to raise antibodies by means known to those of skill 0 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 et al. supra, ch. 11.) Typically, the oligopeptides are 15 residues in length, and are synthesized using an Applied Biosystems Peptide Synthesizer Model 431 A using fmoc-chemistry and coupled to KLH (Sigma, St.
- Naturally occurring or recombinant HURP is substantially purified by immunoaffinity chromatography using antibodies specific for HURP.
- An immunoaffinity column is constructed by covalently coupling anti-HURP antibody to an activated chromatographic resin, such as CNBr-activated Sepharose (Pharmacia & Upjohn). After the coupling, the resin is blocked and washed according to the manufacturer's instructions.
- Media containing HURP are passed over the immunoaffinity column, and the column is washed under conditions that allow the preferential absorbance of HURP (e.g., high ionic strength buffers in the presence of detergent).
- the column is eluted under conditions that disrupt antibody/HURP 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 HURP is collected.
- HURP HURP, or biologically active fragments thereof, are labeled with 125 I Bolton-Hunter reagent.
- Bolton-Hunter reagent See, e.g., Bolton et al. (1973) Biochem. J. 133:529.
- Candidate molecules previously arrayed in the wells of a multi-well plate are incubated with the labeled HURP, washed, and any wells with labeled HURP complex are assayed. Data obtained using different concentrations of HURP are used to calculate values for the number, affinity, and association of HURP with the candidate molecules.
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Abstract
L'invention concerne des protéines réceptrices humaines ainsi que des polynucléotides qui identifient et codent ces protéines. L'invention concerne également des vecteurs d'expression, des cellules hôtes, des anticorps, des agonistes et des antagonistes. Elle concerne encore des procédés de traitement ou de prévention de troubles associés à l'expression de ces protéines.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US2293998A | 1998-02-12 | 1998-02-12 | |
US22939 | 1998-02-12 | ||
PCT/US1999/002572 WO1999041375A2 (fr) | 1998-02-12 | 1999-02-05 | Proteines receptrices humaines |
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EP1053323A2 true EP1053323A2 (fr) | 2000-11-22 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP99906764A Withdrawn EP1053323A2 (fr) | 1998-02-12 | 1999-02-05 | Proteines receptrices humaines |
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EP (1) | EP1053323A2 (fr) |
JP (1) | JP2002503465A (fr) |
AU (1) | AU2659799A (fr) |
CA (1) | CA2320427A1 (fr) |
WO (1) | WO1999041375A2 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2000008155A2 (fr) * | 1998-08-07 | 2000-02-17 | Incyte Pharmaceuticals, Inc. | Proteines associees a un recepteur humain |
AUPQ051099A0 (en) | 1999-05-24 | 1999-06-17 | Tachas, George Dr | Novel products and processes in treatment and/or prophylaxis |
DE10211088A1 (de) * | 2002-03-13 | 2003-09-25 | Ugur Sahin | Differentiell in Tumoren exprimierte Genprodukte und deren Verwendung |
DE10341812A1 (de) | 2003-09-10 | 2005-04-07 | Ganymed Pharmaceuticals Ag | Differentiell in Tumoren exprimierte Genprodukte und deren Verwendung |
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JPH10504457A (ja) * | 1994-08-16 | 1998-05-06 | ヒューマン ジノーム サイエンシーズ, インコーポレイテッド | カルシトニンレセプター |
US5686597A (en) * | 1995-06-06 | 1997-11-11 | Incyte Pharmaceuticals, Inc. | Thrombin receptor homolog |
EP0840787A2 (fr) * | 1995-06-20 | 1998-05-13 | Incyte Pharmaceuticals, Inc. | Homologue su recepteur de edg-2 de l'homme |
-
1999
- 1999-02-05 JP JP2000531556A patent/JP2002503465A/ja active Pending
- 1999-02-05 WO PCT/US1999/002572 patent/WO1999041375A2/fr not_active Application Discontinuation
- 1999-02-05 EP EP99906764A patent/EP1053323A2/fr not_active Withdrawn
- 1999-02-05 AU AU26597/99A patent/AU2659799A/en not_active Abandoned
- 1999-02-05 CA CA002320427A patent/CA2320427A1/fr not_active Abandoned
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JP2002503465A (ja) | 2002-02-05 |
CA2320427A1 (fr) | 1999-08-19 |
WO1999041375A3 (fr) | 1999-12-16 |
WO1999041375A2 (fr) | 1999-08-19 |
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