期刊论文详细信息
FEBS Letters | |
Electron transfer from A− 1 to an iron‐sulfur center with t = 200 ns at room temperature in photosystem I Characterization by flash absorption spectroscopy | |
Brettel, K.1  | |
[1] Max-Volmer-Institut für Biophysikalische und Physikalische Chemie, Technische Universität Berlin, Straβe des 17. Juni 135, D-1000 Berlin 12, Germany | |
关键词: Photosystem I; Electron transfer; Vitamin K1; Absorption difference spectrum; Photosynthesis; (Synechococcus sp.); Chl; chlorophyll; d; optical path for the measuring light; DPIP; 2; 6-dichlorophenolindophenol; (FeS); ironsulfur center; FWHM; full width at half maximum; PS; photosystem; vit.K1; vitamin K1; | |
DOI : 10.1016/0014-5793(88)80552-0 | |
学科分类:生物化学/生物物理 | |
来源: John Wiley & Sons Ltd. | |
【 摘 要 】
Forward electron transfer in intact photosystem I particles from Synechococcus sp. at room temperature has been studied by flash absorption spectroscopy with a time resolution of 5 ns. A kinetic phase with t = 200 ns was resolved and characterized by its absorption difference spectrum between 325 and 495 nm. This phase is attributed to electron transfer from the reduced redox center A1 to an iron-sulfur center, probably Fx. The difference spectrum for the reduction of A1 is evaluated and the previously proposed identification of A1 with vitamin K1 is discussed.
【 授权许可】
Unknown
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