Protease-activated receptor PAR4 (ZCHEMR2)

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Recombinant dna technique included in method of making a...

Reexamination Certificate

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C435S252300, C435S320100, C536S023500

Reexamination Certificate

active

07122342

ABSTRACT:
The present invention relates to polynucleotide and polypeptide molecules for PAR4, a novel member of the protease-activated receptor family. The polypeptides, and polynucleotides encoding them, mediate biological responses and/or cellular signaling in response to proteases. Protease cleavage of PAR4 exposes a PAR4 extracellular amino terminal portion that serves as a ligand for the PAR4 receptor. PAR4 may be used as a target in drug screening, and further used to identify proteinaceous or non-proteinaceous PAR4 agonists and antagonists. The present invention also includes antibodies to the PAR4 polypeptides.

REFERENCES:
patent: 6436400 (2002-08-01), Xu et al.
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EST from Incyte Pharmaceuticals, Inc., 373881.
EST from Incyte Pharmaceuticals, Inc., 2189250.
EST from Incyte Pharmaceuticals, Inc., 2899749.
EST from Incyte Pharmaceuticals, Inc., 3218437.
U.S. Appl. No. 09/480,720 filed Jan. 07, 2002, Xu et al.
U.S. Appl. No. 10/187,049 filed Jun.28, 2002, Xu et al.

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