Journal
WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY
Volume 7, Issue 3, Pages 408-427Publisher
WILEY
DOI: 10.1002/wnan.1319
Keywords
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Funding
- University of California Cancer Research Coordinating Committee
- American Heart Association [14GRNT18690063]
- National Science Foundation
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G protein-coupled receptor (GPCR) oligomers are promising targets for the design of new highly selective therapeutics. GPCRs have historically been attractive drug targets for their role in nearly all cellular processes, and their localization at the cell surface makes them easily accessible to most small molecule therapeutics. However, GPCRs have traditionally been considered a monomeric entity, a notion that greatly oversimplifies their function. As evidence accumulates that GPCRs tune function through oligomer formation and protein-protein interactions, we see a greater demand for structural information about these oligomers to facilitate oligomer-specific drug design. These efforts are slowed by difficulties inherent to studying membrane proteins, such as low expression yield, in vitro stability and activity. Such obstacles are amplified for the study of specific oligomers, as there are limited tools to directly isolate and characterize these receptor complexes. Thus, there is a need to develop new interdisciplinary approaches, combining biochemical and biophysical techniques, to address these challenges and elucidate structural details about the oligomer and ligand binding interfaces. In this review, we provide an overview of mechanistic models that have been proposed to underlie the function of GPCR oligomers, and perspectives on emerging techniques to characterize GPCR oligomers for structure-based drug design. (C) 2014 Wiley Periodicals, Inc.
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