Internal switches modulating electron tunneling currents in respiratory complex III.
Internal switches modulating electron tunneling currents in respiratory complex III.
复制标题
调节呼吸复合体 III 中电子隧道电流的内部开关。
DOI:
10.1016/j.bbabio.2016.02.005
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Stuchebrukhov,AlexeiA
中科院分区:
文献类型:
--
作者:
Hagras,MuhammadA;Stuchebrukhov,AlexeiA
In different X-ray crystal structures ofbc1complex, some of the key residues of electron tunneling pathways are observed in different conformations; here we examine their relative importance in modulating electron transfer and propose their possible gating function in the Q-cycle. The study includes inter-monomeric electron transfer; here we provide atomistic details of the reaction, and discuss the possible roles of inter-monomeric electronic communication inbc1complex. Binding of natural ligands or inhibitors leads to local conformational changes which propagate through protein and control the conformation of key residues involved in the electron tunneling pathways. Aromatic–aromatic interactions are highly utilized in the communication network since the key residues are aromatic in nature. The calculations show that there is a substantial change of the electron transfer rates between different redox pairs depending on the different conformations acquired by the key residues of the complex.
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DOI:
10.1021/acs.jpcb.5b09424
发表时间:
2015
期刊:
The journal of physical chemistry. B
影响因子:
--
作者:
Hagras,MuhammadA;Hayashi,Tomoyuki;Stuchebrukhov,AlexeiA
通讯作者:
Stuchebrukhov,AlexeiA
影响因子:
2
作者:
MITCHELL, P
通讯作者:
MITCHELL, P
DOI:
--
发表时间:
1992
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Yun,CH;Wang,Z;Crofts,AR;Gennis,RB
通讯作者:
Gennis,RB
影响因子:
3.7
作者:
CROFTS, AR;WANG, ZG
通讯作者:
WANG, ZG
影响因子:
2.9
作者:
V. P. Shinkarev;A. Crofts;C. Wraight
通讯作者:
C. Wraight