Delineating the conformational landscape of the adenosine A(2A) receptor during G protein coupling.
Delineating the conformational landscape of the adenosine A(2A) receptor during G protein coupling.
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DOI:
10.1016/j.cell.2021.02.041
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发表时间:
2021-04-01
期刊:
影响因子:
64.5
通讯作者:
Prosser, R. Scott
中科院分区:
文献类型:
--
作者:
Huang, Shuya Kate;Pandey, Aditya;Duy Phuoc Tran;Villanueva, Nicolas L.;Kitao, Akio;Sunahara, Roger K.;Sljoka, Adnan;Prosser, R. Scott
G protein-coupled receptors (GPCRs) represent a ubiquitous membrane protein family and are important drug targets. Their diverse signaling pathways are driven by complex pharmacology arising from a conformational ensemble rarely captured by structural methods. Here, fluorine nuclear magnetic resonance spectroscopy (19F NMR) is used to delineate key functional states of the adenosine A2A receptor (A2AR) complexed with heterotrimeric G protein (Gαsβ1γ2) in a phospholipid membrane milieu. Analysis of A2AR spectra as a function of ligand, G protein, and nucleotide identifies an ensemble represented by inactive states, a G protein-bound activation intermediate, and distinct nucleotide-free states associated with either partialor full-agonist-driven activation. The Gβγ subunit is found to be critical in facilitating ligand-dependent allosteric transmission, as shown by 19F NMR, biochemical, and computational studies. The results provide a mechanistic basis for understanding basal signaling, efficacy, precoupling, and allostery in GPCRs.
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DOI:
10.1093/protein/gzw049
发表时间:
2016-12
期刊:
Protein engineering, design & selection : PEDS
影响因子:
--
作者:
Carpenter B;Tate CG
通讯作者:
Tate CG
影响因子:
64.5
作者:
Du, Yang;Duc, Nguyen Minh;Chung, Ka Young
通讯作者:
Chung, Ka Young
DOI:
10.1073/pnas.1110499108
发表时间:
2011-11-15
影响因子:
11.1
作者:
Dror, Ron O.;Arlow, Daniel H.;Shaw, David E.
通讯作者:
Shaw, David E.
影响因子:
4.8
作者:
Ballesteros, JA;Jensen, AD;Javitch, JA
通讯作者:
Javitch, JA
影响因子:
2.9
作者:
HOOVER, WG
通讯作者:
HOOVER, WG