期刊论文详细信息
FEBS Letters | |
The photosystem of the green sulfur bacterium Chlorobium limicola contains two early electron acceptors similar to photosystem I | |
Nitschke, Wolfgang1  Hauska, Günter1  Lockau, Wolfgang1  Feiler, Ute1  | |
[1] Universität Regensburg, Institut für Botanik, Universitätsstrasse 31, 8400 Regensburg, FRG | |
关键词: Bacterial photosynthesis; Reaction center; Phototrapping; EPR; (Green sulfur bacteria; Chlorobium); DPPH; 1; 1-diphenyl-2-dipicrylhydrazyl radical; PMSF; phenylmethylsulfonyl fluoride; EPR; electron paramagnetic resonance; P840; primary electron donor of the reaction center of Chlorobium limicola; PS; photosystem; RC; reaction center; | |
DOI : 10.1016/0014-5793(87)81062-1 | |
学科分类:生物化学/生物物理 | |
来源: John Wiley & Sons Ltd. | |
【 摘 要 】
An asymmetric EPR-line with a g factor of 2.0045 was detected after phototrapping at 196 K in membranes and in isolated photoactive P840 reaction centers of Chlorobium limicola f. thiosulfatophilum. The spectra resemble those of the electron acceptor A− 1 of photosystem I in chloroplasts and cyanobacteria. At 229 K a symmetric signal at g=2.0033, comparable to the one of the early electron acceptor A− 0 is additionally phototrapped. In contrast to membranes, the reaction center preparation does not contain appreciable amounts of photoreducible FeS-centers.
【 授权许可】
Unknown
【 预 览 】
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RO201912020289416ZK.pdf | 352KB | download |