Molecular dynamics study of the proton pump cycle of bacteriorhodopsin.

Molecular dynamics study of the proton pump cycle of bacteriorhodopsin.
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细菌视紫红质质子泵循环的分子动力学研究。

DOI:
10.1021/bi00060a022
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发表时间:
1993
期刊:
影响因子:
2.9
通讯作者:
Schulten,K
Schulten,K
中科院分区:
生物学3区
文献类型:
--
作者:
Zhou,F;Windemuth,A;Schulten,K

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Revised Manuscript Received December 14, 1992 abstract: Retinal isomerization reactions, which are functionally important in the proton pump cycle of bacteriorhodopsin, were studied by molecular dynamics simulations performed on the complete protein. Retinal isomerizations were simulated in situ to account for the effects of the retinal-protein interactions. The protein structure employed was that described in Nonella et al.[Nonella, M., Windemuth, A., & Schulten, K.(1991) Photochem. Photobiol. 54, 937-948]. We investigated two mechanisms suggested previously for the proton pump cycle, the 13-cis isomerization model (CT model) and the 13, 14-dicis isomerization model. According to these models, retinal undergoes an all-trans-» 13-cis or an all-trans
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