蛋白质电子跳跃转移与溶剂化电子结构

J4 ›› 2011, Vol. 46 ›› Issue (10): 152-159.

蛋白质电子跳跃转移与溶剂化电子结构

山东大学化学与化工学院, 山东济南 250100

收稿日期:2011-07-08 出版日期:2011-10-20 发布日期:2011-10-18
作者简介:步宇翔(1962- ),男,博士,教授,主要研究方向为理论、计算与模拟化学.Email:byx@sdu.edu.cn
基金资助:
国家自然科学基金资助项目(20633060;20973101);教育部新世纪优秀人才基金;山东大学自主创新基金(2009JC020)

Electron hopping transfer in proteins and structures of solvated electrons

BU Yu-xiang

School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China

Received:2011-07-08 Online:2011-10-20 Published:2011-10-18

摘要/Abstract

摘要：

本文综述了生物体内电荷跳跃转移的一些新特征。重点阐述了蛋白质电荷转移过程中一种可能的中间体——溶剂化电子——的结构性质特征以及在蛋白质长程电荷转移中的重要作用。蛋白质中存在着诸多基团、分子片或电正性区域,比如:质子化的碱性支链基团、芳香环、极性肽链、螺旋及结构水簇等,它们可以俘获电子、然后释放,扮演着电子跳跃转移中继站的作用。这种基于溶剂化电子的电子跳跃转移模式构成了蛋白质内电子长程转移的新途径。

关键词: 蛋白质电荷转移;溶剂化电子;电子转移中继站;跳跃机理;蛋白质结构单元

Abstract:

Some new features of charge hopping transfers in proteins are reviewed in this article, which focuses on the structures and properties of solvated electrons, a possibly existing intermediate in the charge transfer processes in proteins, and their important role in assisting long range charge migration in proteins. Normally, there are a lot of groups, molecular fragments and electropositive zones in proteins, such as the protonated basic amino acid side chains, aromatic rings, polar peptide chains, helices and structuring water clusters, and so on, and they can capture and then electrons, playing a relay role in assisting electron hopping transfers. This kind of solvated electronbased electron hopping modes can be considered as a new pathway of longrange electron migration in proteins.

Key words: Electron transfer in proteins; Solvated electron; Electron transfer relay; Hopping mechanism; Structure units of proteins

步宇翔. 蛋白质电子跳跃转移与溶剂化电子结构[J]. J4, 2011, 46(10): 152-159.

BU Yu-xiang. Electron hopping transfer in proteins and structures of solvated electrons[J]. J4, 2011, 46(10): 152-159.

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