G-Protein Coupled Receptors (GPCRs) represent both the largest class of signaling receptors in the human genome and the family most targeted by therapeutic drugs. Responding to ligands that vary from protons to bioamines to lipids to chemokines, their attractiveness for drug discovery reflects the importance of the signals they transduce and, as has become apparent with the determination of their structures, the intrinsic ligand- ability of their binding sites. Despite intense interest, most GPCRs remain sparsely annotated by chemical matter. In this grant we will take a two-pronged approach to overcome these difficulties.
In Specific Aim 1 we will develop and validate scalable assays in yeast and mammalian cells with which to screen a library of 5321 drugs and reagents.
In Specific Aim 2 we will develop and validate scalable computational screens against modeled structures of the orphan GPCRs, leveraging the empirical hits. By the end of the project period we anticipate validating and executing physical screens against 30 orphan GPCRs and producing computationally optimized lead-like compounds for 20.

Public Health Relevance

G protein coupled receptors represent the single largest class of human proteins targeted by approved medications. There are at least 380 GPCRs in the human genome, although therapeutic drugs are available for only a small number of them. In this grant we will develop new tools to identify which of the relatively understudied G protein coupled receptors might represent new targets for therapeutic drug development.

Agency
National Institute of Health (NIH)
Type
Research Project--Cooperative Agreements (U01)
Project #
1U01MH104974-01
Application #
8781263
Study Section
Special Emphasis Panel (ZRG1)
Program Officer
Yao, Yong
Project Start
Project End
Budget Start
Budget End
Support Year
1
Fiscal Year
2014
Total Cost
Indirect Cost
Name
University of North Carolina Chapel Hill
Department
Pharmacology
Type
Schools of Medicine
DUNS #
City
Chapel Hill
State
NC
Country
United States
Zip Code
27599