Electron transfer pathways in photosystem I reaction centers

被引：19
|
作者：
Ivashin, N
Larsson, S [1 ]
机构：
[1] Chalmers Univ Technol, Dept Phys Chem, S-41296 Gothenburg, Sweden
[2] Natl Acad Sci, Inst Atom & Mol Phys, Minsk 220072, BELARUS
来源：
CHEMICAL PHYSICS LETTERS | 2003年 / 375卷 / 3-4期
关键词：
D O I：
10.1016/S0009-2614(03)00855-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Electron transfer following charge separation in the photosystem I (PSI) reaction center of Synechococcus elongatus is studied using theoretical methods. The difference in rate between two almost symmetrical A- and B-branches is caused by a difference in a single residue (Trp B673 versus Gly A693), close to the F-X iron-sulfur cluster. Partly due to its polar environment, Trp B673 acts as an electron acceptor in its pi-system. The rate increases on the B-side due to shortened distances for electron transfer. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：383 / 387
页数：5
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