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CODA-RET reveals functional selectivity as a result of GPCR heteromerization
Here we present a novel method that combines protein complementation with resonance energy transfer to study conformational changes in response to activation of a defined G protein-coupled receptor heteromer, and we apply the approach to the putative dopamine D1-D2 receptor heteromer. Remarkably, th...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3158273/ https://www.ncbi.nlm.nih.gov/pubmed/21785426 http://dx.doi.org/10.1038/nchembio.623 |
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author | Urizar, Eneko Yano, Hideaki Kolster, Rachel Galés, Céline Lambert, Nevin Javitch, Jonathan A. |
author_facet | Urizar, Eneko Yano, Hideaki Kolster, Rachel Galés, Céline Lambert, Nevin Javitch, Jonathan A. |
author_sort | Urizar, Eneko |
collection | PubMed |
description | Here we present a novel method that combines protein complementation with resonance energy transfer to study conformational changes in response to activation of a defined G protein-coupled receptor heteromer, and we apply the approach to the putative dopamine D1-D2 receptor heteromer. Remarkably, the potency of the D2 receptor (D2R) agonist R(–)-Propylnorapomorphine (NPA) to change the Gαi conformation via the D2R protomer in the D1-D2 heteromer was enhanced 10-fold relative to that observed in the D2R homomer. In contrast, the potencies of the D2R agonists dopamine and quinpirole were the same in the homomer and heteromer. Thus, we have uncovered a molecular mechanism for functional selectivity, in which a drug acts differently at a GPCR protomer depending on the identity of the second protomer that participates in forming the signaling unit, opening the door to enhanced pharmacological specificity through targeting differences between homomeric and heteromeric signaling. |
format | Online Article Text |
id | pubmed-3158273 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
record_format | MEDLINE/PubMed |
spelling | pubmed-31582732012-03-01 CODA-RET reveals functional selectivity as a result of GPCR heteromerization Urizar, Eneko Yano, Hideaki Kolster, Rachel Galés, Céline Lambert, Nevin Javitch, Jonathan A. Nat Chem Biol Article Here we present a novel method that combines protein complementation with resonance energy transfer to study conformational changes in response to activation of a defined G protein-coupled receptor heteromer, and we apply the approach to the putative dopamine D1-D2 receptor heteromer. Remarkably, the potency of the D2 receptor (D2R) agonist R(–)-Propylnorapomorphine (NPA) to change the Gαi conformation via the D2R protomer in the D1-D2 heteromer was enhanced 10-fold relative to that observed in the D2R homomer. In contrast, the potencies of the D2R agonists dopamine and quinpirole were the same in the homomer and heteromer. Thus, we have uncovered a molecular mechanism for functional selectivity, in which a drug acts differently at a GPCR protomer depending on the identity of the second protomer that participates in forming the signaling unit, opening the door to enhanced pharmacological specificity through targeting differences between homomeric and heteromeric signaling. 2011-07-24 /pmc/articles/PMC3158273/ /pubmed/21785426 http://dx.doi.org/10.1038/nchembio.623 Text en Users may view, print, copy, download and text and data- mine the content in such documents, for the purposes of academic research, subject always to the full Conditions of use: http://www.nature.com/authors/editorial_policies/license.html#terms |
spellingShingle | Article Urizar, Eneko Yano, Hideaki Kolster, Rachel Galés, Céline Lambert, Nevin Javitch, Jonathan A. CODA-RET reveals functional selectivity as a result of GPCR heteromerization |
title | CODA-RET reveals functional selectivity as a result of GPCR heteromerization |
title_full | CODA-RET reveals functional selectivity as a result of GPCR heteromerization |
title_fullStr | CODA-RET reveals functional selectivity as a result of GPCR heteromerization |
title_full_unstemmed | CODA-RET reveals functional selectivity as a result of GPCR heteromerization |
title_short | CODA-RET reveals functional selectivity as a result of GPCR heteromerization |
title_sort | coda-ret reveals functional selectivity as a result of gpcr heteromerization |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3158273/ https://www.ncbi.nlm.nih.gov/pubmed/21785426 http://dx.doi.org/10.1038/nchembio.623 |
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