Abstract
Signals relayed through G protein-coupled receptors (GPCR) play pivotal roles in human physiology and are important drug targets. About 40% of all GPCRs couple to the heterotrimeric G protein Gq. Biochemical studies as well as crystallography have improved our understanding of GqPCRs and their downstream partners. Here we focus on the "functional imaging" tools that have been developed to visualize, dissect and quantify signalling processes at the single living cell level. We provide an overview of the most important developments in readout of signalling by FRET and BRET, as well as of the labelling strategies commonly used to visualize proteins in living cells. In addition, tools that allow manipulation of individual steps, including chemically inducible dimerization and optogenetic tools are covered. Together, these developments will provide unprecedented insights in GqPCR signalling in living cells and model organisms.
Keywords: BRET, chemically induced dimerization, Gq, GPCR, FRET.
Current Pharmaceutical Biotechnology
Title:GqPCR-mediated Signalling in the Spotlight: From Visualization Towards Dissection and Quantification
Volume: 15 Issue: 10
Author(s): Kees Jalink and Merel J.W. Adjobo-Hermans
Affiliation:
Keywords: BRET, chemically induced dimerization, Gq, GPCR, FRET.
Abstract: Signals relayed through G protein-coupled receptors (GPCR) play pivotal roles in human physiology and are important drug targets. About 40% of all GPCRs couple to the heterotrimeric G protein Gq. Biochemical studies as well as crystallography have improved our understanding of GqPCRs and their downstream partners. Here we focus on the "functional imaging" tools that have been developed to visualize, dissect and quantify signalling processes at the single living cell level. We provide an overview of the most important developments in readout of signalling by FRET and BRET, as well as of the labelling strategies commonly used to visualize proteins in living cells. In addition, tools that allow manipulation of individual steps, including chemically inducible dimerization and optogenetic tools are covered. Together, these developments will provide unprecedented insights in GqPCR signalling in living cells and model organisms.
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Cite this article as:
Jalink Kees and Adjobo-Hermans J.W. Merel, GqPCR-mediated Signalling in the Spotlight: From Visualization Towards Dissection and Quantification, Current Pharmaceutical Biotechnology 2014; 15 (10) . https://dx.doi.org/10.2174/1389201015666140922101637
DOI https://dx.doi.org/10.2174/1389201015666140922101637 |
Print ISSN 1389-2010 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4316 |
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