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

页码：383 / 387

页数：5

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