期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1972
卷号：69
期号：1
页码：50-54
DOI：10.1073/pnas.69.1.50
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：In anaerobic, uncoupled pigeon-heart mitochondria treated with oxidizable substrate, the cytochrome b566 remains largely oxidized. In the presence of antimycin A, addition of oxygen induces a reduction of this cytochrome. The rate of cytochrome b566 reduction is comparable to and dependent on the rate of cytochrome c1 oxidation. Kinetic data suggest that either ubiquinone or another donor of similar potential provides electrons for the reduction of cytochrome b566. It is postulated that the aerobic reduction of cytochrome b566 is directly related to the energy conservation at site II.
关键词：succinate-cytochrome c 1 reductase ; stopped-flow kinetics
