Fragment complementation assays for G-protein-coupled receptors and their signaling pathways
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United States of America Patent
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Feb 10, 2009
Grant Date -
Aug 18, 2005
app pub date -
Sep 23, 2004
filing date -
Sep 25, 2003
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Abstract
The invention provides a method of screening a candidate drug, a compound library or a biological extract to identify activators or inhibitors of G-protein-coupled receptors or G-protein-coupled pathways, comprising: (A) using a fluorescent protein fragment complementation assay to construct an assay for one or more steps in a G-protein-coupled pathway; (B) testing the effects of the candidate drugs, compound library, or biological extract on the receptor or pathway of interest; and (C) using the results of the screening to identify specific agents that activate or inhibit the receptor or pathway of interest. The invention also provides a method for identifying a drug lead that modulates the activity of a G-protein-coupled pathway using a fluorescent protein fragment complementation assay. The method of the invention is used to identify agonists, antagonists, activators or inhibitors of G-protein coupled receptors or G-protein-coupled pathways.
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