Ultrafast dynamics in DNA-mediated electron transfer: Base gating and the role of temperature

被引：127
作者：
O'Neill, MA [1 ]
Becker, HC [1 ]
Wan, CZ [1 ]
Barton, JK [1 ]
Zewail, AH [1 ]
机构：
[1] CALTECH, Arthur Amos Noyes Lab Chem Phys, Lab Mol Sci, Pasadena, CA 91125 USA
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2003年 / 42卷 / 47期
关键词：
DNA dynamics; electron transfer; femtochemistry; intercalations; purines;
D O I：
10.1002/anie.200352831
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The ultrafast dynamics of electron transfer (ET) between bases in DNA have been determined to elucidate the critical role of base-pair gating on the timescale of the electron transport and the temperature dependence of the rates. ET occurs only through DNA duplexes that adopt a specific, well-coupled alignment of bases (ET-active; see picture). Descriptions of ET dynamics must include fluctuations of DNA bases.
引用
收藏
页码：5896 / 5900
页数：5
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