Tuning electron transfer by ester-group of chlorophylls in bacterial photosynthetic reaction center

被引：19

作者：

Ishikita, H ^{[1
]}

Loll, B ^{[1
]}

Biesiadka, J ^{[1
]}

Galstyan, A ^{[1
]}

Saenger, W ^{[1
]}

Knapp, EW ^{[1
]}

机构：

[1] Free Univ Berlin, Dept Biol Chem & Pharm, Inst Chem Crystallog, D-14195 Berlin, Germany

来源：

FEBS LETTERS | 2005年 / 579卷 / 03期

关键词：

bacterial photosynthetic reaction center; photosystem II; redox potential; electron transfer; chlorophyll; P680;

D O I：

10.1016/j.febslet.2004.12.049

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Accessory chlorophylls (B-A/B) in bacterial photosynthetic reaction center play a key role in charge-separation. Although light-exposed and dark-adapted bRC crystal structures are virtually identical, the calculated B-A redox potentials for one-electron reduction differ. This can be traced back to different orientations of the B-A ester-group. This tuning ability of chlorophyll redox potentials modulates the electron transfer from SP* to B-A. (C) 2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

引用

页码：712 / 716

页数：5

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