Single-molecule analysis of G protein-coupled receptor stoichiometry: Approaches and limitations

How G protein-coupled receptors (GPCRs) are organized at the cell surface remains highly contentious. Single-molecule (SM) imaging is starting to inform this debate as receptor behavior can now be visualized directly, without the need for interpreting ensemble data. The limited number of SM studies...

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Main Authors: Felce, J, Davis, S, Klenerman, D
Formato: Journal article
Idioma:English
Publicado em: Elsevier 2017
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author Felce, J
Davis, S
Klenerman, D
author_facet Felce, J
Davis, S
Klenerman, D
author_sort Felce, J
collection OXFORD
description How G protein-coupled receptors (GPCRs) are organized at the cell surface remains highly contentious. Single-molecule (SM) imaging is starting to inform this debate as receptor behavior can now be visualized directly, without the need for interpreting ensemble data. The limited number of SM studies of GPCRs undertaken to date have strongly suggested that dimerization is at most transient, and that most receptors are monomeric at any given time. However, even SM data has its caveats and needs to be interpreted carefully. Here, we discuss the types of SM imaging strategies used to examine GPCR stoichiometry and consider some of these caveats. We also emphasize that attempts to resolve the debate ought to rely on orthogonal approaches to measuring receptor stoichiometry.
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spelling oxford-uuid:8d689fa4-c62e-450c-a310-213d0c96c8af2022-03-26T22:51:03ZSingle-molecule analysis of G protein-coupled receptor stoichiometry: Approaches and limitationsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8d689fa4-c62e-450c-a310-213d0c96c8afEnglishSymplectic Elements at OxfordElsevier2017Felce, JDavis, SKlenerman, DHow G protein-coupled receptors (GPCRs) are organized at the cell surface remains highly contentious. Single-molecule (SM) imaging is starting to inform this debate as receptor behavior can now be visualized directly, without the need for interpreting ensemble data. The limited number of SM studies of GPCRs undertaken to date have strongly suggested that dimerization is at most transient, and that most receptors are monomeric at any given time. However, even SM data has its caveats and needs to be interpreted carefully. Here, we discuss the types of SM imaging strategies used to examine GPCR stoichiometry and consider some of these caveats. We also emphasize that attempts to resolve the debate ought to rely on orthogonal approaches to measuring receptor stoichiometry.
spellingShingle Felce, J
Davis, S
Klenerman, D
Single-molecule analysis of G protein-coupled receptor stoichiometry: Approaches and limitations
title Single-molecule analysis of G protein-coupled receptor stoichiometry: Approaches and limitations
title_full Single-molecule analysis of G protein-coupled receptor stoichiometry: Approaches and limitations
title_fullStr Single-molecule analysis of G protein-coupled receptor stoichiometry: Approaches and limitations
title_full_unstemmed Single-molecule analysis of G protein-coupled receptor stoichiometry: Approaches and limitations
title_short Single-molecule analysis of G protein-coupled receptor stoichiometry: Approaches and limitations
title_sort single molecule analysis of g protein coupled receptor stoichiometry approaches and limitations
work_keys_str_mv AT felcej singlemoleculeanalysisofgproteincoupledreceptorstoichiometryapproachesandlimitations
AT daviss singlemoleculeanalysisofgproteincoupledreceptorstoichiometryapproachesandlimitations
AT klenermand singlemoleculeanalysisofgproteincoupledreceptorstoichiometryapproachesandlimitations