Calculation of the redox potentials of iron-sulfur proteins: the 2-/3-couple of [Fe4S*4Cys4] clusters in Peptococcus aerogenes ferredoxin, Azotobacter vinelandii ferredoxin I, and Chromatium vinosum high-potential iron protein.
Calculation of the redox potentials of iron-sulfur proteins: the 2-/3-couple of [Fe4S*4Cys4] clusters in Peptococcus aerogenes ferredoxin, Azotobacter vinelandii ferredoxin I, and Chromatium vinosum high-potential iron protein.
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铁硫蛋白氧化还原电位的计算:产气杆菌铁氧化还原蛋白、维氏固氮菌铁氧化还原蛋白 I 和 Chromatium vinosum 高电位铁蛋白中的 2-/3-对 [Fe4S*4Cys4] 簇。
DOI:
10.1021/bi00202a010
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发表时间:
1994
期刊:
影响因子:
2.9
通讯作者:
Stephens,PJ
中科院分区:
文献类型:
--
作者:
Jensen,GM;Warshel,A;Stephens,PJ
Revised Manuscript Received June 27, 1994® abstract: Calculations of the redox potentials of the 2-/3-couples of [Fe4S4Cys4] clusters in the iron-sulfur proteinsPeptococcus aerogenes ferredoxin (PaFd), Azotobacter vinelandii ferredoxin I (/luFdl) and Chromatium vinosum high potential iron protein (CuHiPIP) based on the Protein Dipoles Langevin Dipoles (PDLD) method are reported. The structures of these proteins have been determined by X-ray crystallography; in the case of PaFd the structure has recently been revised due to a change in the sequence close to Cluster II. The large differences between the potentials of the [Fe4S4Cys4] clusters of PaFd and AvFdl and the potential of the [Fe4S4Cys4] cluster of CuHiPIP are successfully modeled and originate principally in differences in the configuration of main-chain amide groups near the clusters. The small difference between the potentials of PaFd and/luFdl is also satisfactorily modeled in the case of Cluster I of PaFd. Solvent dipoles close to the cluster in PaFd are an important contributor to its higher potential. The two X-ray structures of PaFd yield similar results for Cluster I of PaFd. In contrast, the results for Cluster II differ substantially; for reasons not yet clear, the recently revised structure leads to results in worse agreement with experiment.
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DOI:
--
发表时间:
1972
影响因子:
11.1
作者:
C. Carter;J. Kraut;S. Freer;R. A. Alden;L. Sieker;E. Adman;L. H. Jensen
通讯作者:
L. H. Jensen
影响因子:
4.8
作者:
C. Carter;J. Kraut;S. Freer;Nguyen;R. A. Alden;R. G. Bartsch
通讯作者:
R. G. Bartsch
影响因子:
56.9
作者:
GEORGIADIS, MM;KOMIYA, H;REES, DC
通讯作者:
REES, DC
DOI:
10.1016/0005-2728(90)90192-7
发表时间:
1990
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Parson,WW;Chu,ZT;Warshel,A
通讯作者:
Warshel,A
影响因子:
5.6
作者:
Stout,CD
通讯作者:
Stout,CD