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123 human secreted proteins

123 human secreted proteins description/claims

This application is a continuation of U.S. application Ser. No. 10/866,878, fled Jun. 15, 2004, which is a divisional of U.S. application Ser. No. 09/973,278, filed Oct. 10, 2001, which claims benefit under 35 U.S.C. § 119(e) of U.S. Provisional Application No. 60/239,899, filed Oct. 13, 2000; U.S. application Ser. No. 09/973,278 is also a continuation-in-part of U.S. application Ser. No. 09/227,357, filed Jan. 8, 1999, which is a continuation-in-part of International Application No. PCT/US98/13684, filed Jul. 7, 1998, which claims benefit under 35 U.S.C. § 119(e) based on U.S. Provisional Applications: 60/051,926; 60/052,793; 60/051,925; 60/051,929; 60/052,803; 60/052,732; 60/051,931; 60/051,932; 60/051,916; 60/051,930; 60/051,918; 60/051,920; 60/052,733; 60/052,795; 60/051,919; 60/051,928 (each of which was filed Jul. 8, 1997); and; 60/055,722; 60/055,723; 60/055,948; 60/055,949; 60/055,953; 60/055,950; 60/055,947; 60/055,964; 60/056,360; 60/055,684; 160/055,984; 60/055,954 (each of which was filed Aug. 18, 1997); and; 60/058,785; 60/058,664; 60/058,660; 60/058,661 (each of which was filed Sep. 12, 1997). Each of the above referenced patent applications is hereby incorporated by reference in its entirety.

This application refers to a “Sequence Listing” listed below, which is provided as a text file. The text file contains a document entitled “PZ010P2D1C1-SL.txt” (1,275,826 bytes, created Apr. 12, 2007), which is incorporated by reference in its entirety.

The present invention relates to novel proteins. More specifically, isolated nucleic acid molecules are provided encoding novel polypeptides. Novel polypeptides and antibodies that bind to these polypeptides are provided. Also provided are vectors, host cells, and recombinant and synthetic methods for producing human polynucleotides and/or polypeptides, and antibodies. The invention further relates to diagnostic and therapeutic methods useful for diagnosing, treating, preventing and/or prognosing disorders related to these novel polypeptides. The invention further relates to screening methods for identifying agonists and antagonists of polynucleotides and polypeptides of the invention. The present invention further relates to methods and/or compositions for inhibiting or enhancing the production and function of the polypeptides of the present invention.

Unlike bacterium, which exist as a single compartment surrounded by a membrane, human cells and other eukaryotes are subdivided by membranes into many functionally distinct compartments. Each membrane-bounded compartment, or organelle, contains different proteins essential for the function of the organelle. The cell uses “sorting signals,” which are amino acid motifs located within the protein, to target proteins to particular cellular organelles.

One type of sorting signal, called a signal sequence, a signal peptide, or a leader sequence, directs a class of proteins to an organelle called the endoplasmic reticulum (ER). The ER separates the membrane-bounded proteins from all other types of proteins. Once localized to the ER, both groups of proteins can be further directed to another organelle called the Golgi apparatus. Here, the Golgi distributes the proteins to vesicles, including secretory vesicles, the cell membrane, lysosomes, and the other organelles.

Proteins targeted to the ER by a signal sequence can be released into the extracellular space as a secreted protein. For example, vesicles containing secreted proteins can fuse with the cell membrane and release their contents into the extracellular space—a process called exocytosis. Exocytosis can occur constitutively or after receipt of a triggering signal. In the latter case, the proteins are stored in secretory vesicles (or secretory granules) until exocytosis is triggered. Similarly, proteins residing on the cell membrane can also be secreted into the extracellular space by proteolytic cleavage of a “linker” holding the protein to the membrane.

Thus there exists a clear need for identifying and using novel secreted polynucleotides and polypeptides. Identification and sequencing of human genes is a major goal of modern scientific research. For example, by identifying genes and determining their sequences, scientists have been able to make large quantities of valuable human “gene products.” These include human insulin, interferon, Factor VIII, tumor necrosis factor, human growth hormone, tissue plasminogen activator, and numerous other compounds. Additionally, knowledge of gene sequences can provide the key to treatment or cure of genetic diseases (such as muscular dystrophy and cystic fibrosis).

The present invention relates to novel secreted proteins. More specifically, isolated nucleic acid molecules are provided encoding novel secreted polypeptides. Novel polypeptides and antibodies that bind to these polypeptides are provided. Also provided are vectors, host cells, and recombinant and synthetic methods for producing human polynucleotides and/or polypeptides, and antibodies. The invention further relates to diagnostic and therapeutic methods useful for diagnosing, treating, preventing and/or prognosing disorders related to these novel polypeptides. The invention further relates to screening methods for identifying agonists and antagonists of polynucleotides and polypeptides of the invention. The present invention further relates to methods and/or compositions for inhibiting or enhancing the production and function of the polypeptides of the present invention.

FIGS. 1(A)-(C) show the nucleotide sequence (SEQ D NO:32) and deduced amino acid sequence (SEQ ID NO:172) corresponding to Gene No. 22.

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