Glu-286 rotation and water wire reorientation are unlikely the gating elements for proton pumping in cytochrome C oxidase.
Glu-286 rotation and water wire reorientation are unlikely the gating elements for proton pumping in cytochrome C oxidase.
复制标题
Glu-286 旋转和水线重新定向不太可能是细胞色素 C 氧化酶中质子泵送的门控元件。
DOI:
10.1016/j.bpj.2011.05.004
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发表时间:
2011
影响因子:
3.4
通讯作者:
Q. Cui
中科院分区:
文献类型:
--
作者:
Shuo Yang;Q. Cui
One of the key unresolved issues regarding proton pumping in cytochromecoxidase (CcO) is the identity of the gating element that prevents the backflow of protons. In this study, we analyze two popular proposals for this element: isomerization of the key branching residue (Glu-286) and (re)orientation of water molecules in the hydrophobic cavity. Using a multifaceted set of computational analyses that involve CcO embedded in either an implicit or explicit treatment of lipid membrane, we show that neither Glu-286 nor active-site water likely constitutes the gating element. Detailed energetic and structural analyses of the simulation results indicate that the gating-relevant properties of these structural motifs observed in previous work are likely a result of the simplified computational models employed in those studies.
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影响因子:
3.3
作者:
Klauda, Jeffery B.;Venable, Richard M.;Freites, J. Alfredo;O'Connor, Joseph W.;Tobias, Douglas J.;Mondragon-Ramirez, Carlos;Vorobyov, Igor;MacKerell, Alexander D., Jr.;Pastor, Richard W.
通讯作者:
Pastor, Richard W.
DOI:
10.1021/jp074167r
发表时间:
2007-10
期刊:
The journal of physical chemistry. A
影响因子:
--
作者:
Yang Yang-Yang;Haibo Yu;D. York;Q. Cui;M. Elstner
通讯作者:
Yang Yang-Yang;Haibo Yu;D. York;Q. Cui;M. Elstner
影响因子:
3.3
作者:
Riccardi, D;Schaefer, P;Cui, Q
通讯作者:
Cui, Q
影响因子:
15
作者:
Maupin CM;McKenna R;Silverman DN;Voth GA
通讯作者:
Voth GA
影响因子:
15
作者:
Xu, Jiancong;Sharpe, Martyn A.;Voth, Gregory A.
通讯作者:
Voth, Gregory A.