The hole transfer in DNA: calculation of electron coupling between close bases

被引：195
|
作者：
Troisi, A [1 ]
Orlandi, G [1 ]
机构：
[1] Univ Bologna, Dipartimento Chim G Ciamician, I-40126 Bologna, Italy
来源：
CHEMICAL PHYSICS LETTERS | 2001年 / 344卷 / 5-6期
关键词：
D O I：
10.1016/S0009-2614(01)00792-8
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：
electronic coupling between adjacent bases, belonging to the same and to complementary stacks of DNA, is calculated using an ab initio procedure at the HF level. The mutual geometry of pair-bases has been accurately selected from the available crystallographic data and the variance of the coupling with the geometry is discussed. Results are applied to the description of single step hole transfer between two guanines separated by a base bridge. The effects of interstrand jumps and bases sequence on the hole transfer mechanism are considered. (C) 2001 Elsevier Science B.V. All rights reserved.
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页码：509 / 518
页数：10
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