Format

Send to

Choose Destination
ACS Chem Biol. 2008 Sep 19;3(9):530-41. doi: 10.1021/cb800116f. Epub 2008 Jul 25.

G-protein-coupled receptors: from classical modes of modulation to allosteric mechanisms.

Author information

1
Vanderbilt Program in Drug Discovery, Department of Pharmacology, Vanderbilt Medical Center, Nashville, Tennessee 37232, USA. thomas.m.bridges@vanderbilt.edu

Abstract

Heterotrimeric G-protein-coupled receptors (GPCRs) represent a large protein family responsible for mediating extracellular to intracellular signaling within a broad range of physiological contexts. Various conventional models have been used to describe their interactions with ligands and G-proteins. In recent years, however, numerous novel ligand-receptor interactions not adequately addressed by classical receptor theory have been recognized. In addition to traditional orthosteric ligands, many GPCRs can bind allosteric ligands that modulate receptor activity by interacting with distinct or overlapping receptor sites. Such ligands include positive allosteric modulators, which have become the focus of pharmaceutical drug discovery programs and have gained the attention of a growing body of basic and translational researchers within the academic community. Here, we review the fundamental aspects of allosteric GPCR modulation by small-molecule ligands, with particular focus on the emerging position of positive allosteric modulators in modern drug discovery.

PMID:
18652471
DOI:
10.1021/cb800116f
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for American Chemical Society
Loading ...
Support Center