期刊论文详细信息
FEBS Letters | |
Electrogenic steps during electron transfer via the cytochrome bc 1 complex of Rhodobacter sphaeroides chromatophores | |
Semenov, Alexey Yu.1  | |
[1] A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russian Federation | |
关键词: Bacterial photosynthesis; bc 1 complex; Electrogenic reaction; Rhodobacter sphaeroides; RC; reaction center complex; ΔΨ; electric potential difference; QC and QZ; the quinone-reducing and quinol-oxidizing sites; respectively; b 1 and b h; the low- and the high-potential cytochrome b hemes; respectively; P+QA −; primary dipole in bacterial RC; QB; the secondary quinone acceptor in RC; | |
DOI : 10.1016/0014-5793(93)80608-W | |
学科分类:生物化学/生物物理 | |
来源: John Wiley & Sons Ltd. | |
【 摘 要 】
The results of the flash-induced electrometrical investigation on the functioning of the photosynthetic bacterial cytochrome bc 1 complex are discussed. The data suggest possible arrangement of redox centers in the bc 1 complex and propose that the total electrogenesis within the bc 1 complex includes: (i) electron transfer between the low- and the high-potential cytochrome b hemes, (ii) proton binding by doubly reduced Q2− at ubiquinone-reducing center ‘C’, and (iii) proton release on oxidation of QH2 at ubiquinol-oxidizing center ‘Z’.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912020297706ZK.pdf | 501KB | download |