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Improved donor/acceptor BRET couples for monitoring β‐arrestin recruitment to G protein‐coupled receptors

Improved donor/acceptor BRET couples for monitoring β‐arrestin recruitment to G protein‐coupled... We report highly sensitive bioluminescence resonance energy transfer (BRET) assays with optimized donor/acceptor couples. We combined the energy donors Renilla luciferase (Rluc) and the Rluc8 variant with the energy acceptors yellow fluorescent protein, the YPet variant and the Renilla green fluorescent protein (RGFP). Different donor/acceptor couples were tested in well‐established assays measuring ligand‐induced β‐arrestin (βARR) intramolecular rearrangements and recruitment to G protein‐coupled receptors. We show increased sensitivity with Rluc8/YPet and Rluc8/RGFP couples and measured previously undetectable BRET signals. These tools improve existing βARR assays and offer new options for the development of future BRET assays. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Biotechnology Journal Wiley

Improved donor/acceptor BRET couples for monitoring β‐arrestin recruitment to G protein‐coupled receptors

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References (28)

Publisher
Wiley
Copyright
Copyright © 2009 Wiley Subscription Services, Inc., A Wiley Company
ISSN
1860-6768
eISSN
1860-7314
DOI
10.1002/biot.200900016
pmid
19557797
Publisher site
See Article on Publisher Site

Abstract

We report highly sensitive bioluminescence resonance energy transfer (BRET) assays with optimized donor/acceptor couples. We combined the energy donors Renilla luciferase (Rluc) and the Rluc8 variant with the energy acceptors yellow fluorescent protein, the YPet variant and the Renilla green fluorescent protein (RGFP). Different donor/acceptor couples were tested in well‐established assays measuring ligand‐induced β‐arrestin (βARR) intramolecular rearrangements and recruitment to G protein‐coupled receptors. We show increased sensitivity with Rluc8/YPet and Rluc8/RGFP couples and measured previously undetectable BRET signals. These tools improve existing βARR assays and offer new options for the development of future BRET assays.

Journal

Biotechnology JournalWiley

Published: Sep 1, 2009

Keywords: ; ; ; ;

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