The role of a sodium ion binding site in the allosteric modulation of the A(2A) adenosine G protein-coupled receptor.
The role of a sodium ion binding site in the allosteric modulation of the A(2A) adenosine G protein-coupled receptor.
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DOI:
10.1016/j.str.2013.09.020
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发表时间:
2013-12-03
期刊:
影响因子:
5.7
通讯作者:
Stevens, Raymond C.
中科院分区:
文献类型:
--
作者:
Gutierrez-de-Teran, Hugo;Massink, Arnault;Rodriguez Sanz, David;Liu, Wei;Han, Gye Won;Joseph, Jeremiah S.;Katritch, Ilia;Heitman, Laura H.;Xia, Lizi;IJzerman, Adriaan P.;Cherezov, Vadim;Katritch, Vsevolod;Stevens, Raymond C.
The function of G protein-coupled receptors (GPCRs) can be modulated by a number of endogenous allosteric molecules. In this study, we used molecular dynamics, radioligand binding and thermostability experiments to elucidate the role of the recently discovered sodium ion binding site in the allosteric modulation of the human A2A adenosine receptor, conserved among class A GPCRs. While the binding of antagonists and sodium ions to the receptor was non-competitive in nature, the binding of agonists and sodium ions appears to require mutually exclusive conformational states of the receptor. Amiloride analogs can also bind to the sodium binding pocket showing distinct patterns of agonist and antagonist modulation. These findings suggest that physiological concentrations of sodium ions affect functionally relevant conformational states of GPCRs, and can help to design novel synthetic allosteric modulators or bitopic ligands exploiting the sodium ion binding pocket.
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影响因子:
5.5
作者:
Hess, Berk;Kutzner, Carsten;Lindahl, Erik
通讯作者:
Lindahl, Erik
DOI:
10.1038/nrd2760
发表时间:
2009-01
期刊:
Nature reviews. Drug discovery
影响因子:
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作者:
通讯作者:
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影响因子:
64.8
作者:
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通讯作者:
Murata, Takeshi
DOI:
10.1073/pnas.0811065106
发表时间:
2009-03-24
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:
5.8
作者:
Gao, ZG;Melman, N;Jacobson, KA
通讯作者:
Jacobson, KA