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

页码：5896 / 5900

页数：5

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