Chapter title |
G protein-coupled receptor accessory proteins and signaling: pharmacogenomic insights.
|
---|---|
Chapter number | 7 |
Book title |
Pharmacogenomics in Drug Discovery and Development
|
Published in |
Methods in molecular biology, January 2014
|
DOI | 10.1007/978-1-4939-0956-8_7 |
Pubmed ID | |
Book ISBNs |
978-1-4939-0955-1, 978-1-4939-0956-8
|
Authors |
Miles D Thompson, David E C Cole, Pedro A Jose, Peter Chidiac, Miles D. Thompson, David E. C. Cole, Pedro A. Jose, Thompson, Miles D., Cole, David E. C., Jose, Pedro A., Chidiac, Peter |
Abstract |
The identification and characterization of the genes encoding G protein-coupled receptors (GPCRs) and the proteins necessary for the processes of ligand binding, GPCR activation, inactivation, and receptor trafficking to the membrane are discussed in the context of human genetic disease. In addition to functional GPCR variants, the identification of genetic disruptions affecting proteins necessary to GPCR functions have provided insights into the function of these pathways. Gsα and Gβ subunit polymorphisms have been found to result in complex phenotypes. Disruptions in accessory proteins that normally modify or organize heterotrimeric G-protein coupling may also result in disease states. These include the contribution of variants of the regulator of G protein signaling (RGS) protein to hypertension; the role variants of the activator of G protein signaling (AGS) proteins to phenotypes (such as the type III AGS8 variant to hypoxia); the contribution of G protein-coupled receptor kinase (GRK) proteins, such as GRK4, in disorders such as hypertension. The role of accessory proteins in GPCR structure and function is discussed in the context of genetic disorders associated with disruption of the genes that encode them. An understanding of the pharmacogenomics of GPCR and accessory protein signaling provides the basis for examining both GPCR pharmacogenetics and the genetics of monogenic disorders that result from disruption of given receptor systems. |
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