New interpretation of the redox properties of cytochrome b559 in photosystem II

被引：1
|
作者：
Kaminskaya, O. P. [1 ]
Shuvalov, V. A. [1 ]
机构：
[1] Russian Acad Sci, Inst Basic Biol Problems, Ul Inst Skaya 2, Pushchino 142290, Moscow Oblast, Russia
来源：
DOKLADY BIOCHEMISTRY AND BIOPHYSICS | 2016年 / 466卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
COMPLEX; B(559); C550;
D O I：
10.1134/S1607672916010117
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：
A model of heme-quinone redox interaction has been developed for cytochrome b559 in photosystem II. The quinone Q(C) in the singly protonated form may function as an interacting quinone. The electrostatic effect between the charges on the heme iron of the cytochrome and Q(C)H leads to appearance of three forms of the cytochrome with different redox potentials. A simple and effective mechanism of redox regulation of the electron transfer pathways in photosystem II is proposed.
引用
收藏
页码：39 / 42
页数：4
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