A cytochrome b/c1 complex with ubiquinol--cytochrome c2 oxidoreductase activity from Rhodopseudomonas sphaeroides GA.
A cytochrome b/c1 complex with ubiquinol--cytochrome c2 oxidoreductase activity from Rhodopseudomonas sphaeroides GA.
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来自球形红假单胞菌 GA 的具有泛醇 - 细胞色素 c2 氧化还原酶活性的细胞色素 b/c1 复合物。
DOI:
10.1111/j.1432-1033.1982.tb06753.x
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发表时间:
1982
期刊:
影响因子:
--
通讯作者:
G. Hauska
中科院分区:
文献类型:
--
作者:
N. Gabellini;J. Bowyer;E. Hurt;B. Melandri;G. Hauska
A cytochrome b/c1 complex which catalyses the reduction of cytochrome c by ubiquinol has been isolated from Rhodopseudomonas sphaeroides GA. It contains two hemes b and substoichiometric amounts of ubiquinone-10 and of the Rieske Fe-S center per cytochrome c1, and is essentially free of reaction center and bacteriochlorophyll. The complex consists of three major polypeptides with apparent molecular masses of 40, 34 and 25 kDa. The 34-kDa polypeptide carries heme. Cytochrome c1 has a midpoint potential of 285 mV. For cytochrome b two midpoint potentials, at 50 and -60 mV, at pH 7.4, can be derived if one assumes two components of equal amount. Ubiquinol--cytochrome c oxidoreductase activity is specific for ubiquinol and bacterial cytochromes c, and is inhibited by antimycin A and 5-n-undecyl-6-hydroxy-4,7-dioxobenzothiazole. The complex shows oxidant-induced reduction of cytochrome b.
DOI:
10.1073/pnas.77.11.6339
发表时间:
1980
影响因子:
11.1
作者:
Packham,NK;Tiede,DM;Mueller,P;Dutton,PL
通讯作者:
Dutton,PL
DOI:
10.1016/0304-4173(81)90008-2
发表时间:
1981
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Trumpower,BL
通讯作者:
Trumpower,BL