Fast repair of DNA radicals

Rongliang Zheng; Yimin Shi; Zhongjian Jia; Chenyang Zhao; Qi Zhang; Xiaorong Tan

doi:10.1039/b924875g

Fast repair of DNA radicals

Rongliang Zheng, Yimin Shi, Zhongjian Jia, Chenyang Zhao, Qi Zhang, Xiaorong Tan

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

This tutorial review highlights the mechanism of a novel non-enzymatic fast repair of DNA damage, which refers exclusively to repair DNA radicals including DNA-OH adducts, DNA radical cations and anions by various endogenous, natural and synthetic compounds. The repair rate constants are as high as 10⁹ M⁻¹ s⁻¹. In cells, when the enzymatic repair system was inhibited or before the enzymatic repair mechanism was initiated, DNA oxidative damage was significantly reduced by natural polyphenols. This decrease of DNA damage is assigned to the fast repair. Fast repair takes place through an electron transfer process, and docking of polyphenol into the DNA minor groove could be the essential step.

Original language	English (US)
Pages (from-to)	2827-2834
Number of pages	8
Journal	Chemical Society Reviews
Volume	39
Issue number	8
DOIs	https://doi.org/10.1039/b924875g
State	Published - Jul 22 2010

ASJC Scopus subject areas

General Chemistry

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abstract = "This tutorial review highlights the mechanism of a novel non-enzymatic fast repair of DNA damage, which refers exclusively to repair DNA radicals including DNA-OH adducts, DNA radical cations and anions by various endogenous, natural and synthetic compounds. The repair rate constants are as high as 109 M−1 s−1. In cells, when the enzymatic repair system was inhibited or before the enzymatic repair mechanism was initiated, DNA oxidative damage was significantly reduced by natural polyphenols. This decrease of DNA damage is assigned to the fast repair. Fast repair takes place through an electron transfer process, and docking of polyphenol into the DNA minor groove could be the essential step.",

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AU - Zheng, Rongliang

AU - Shi, Yimin

AU - Jia, Zhongjian

AU - Zhao, Chenyang

AU - Zhang, Qi

AU - Tan, Xiaorong

PY - 2010/7/22

Y1 - 2010/7/22

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AB - This tutorial review highlights the mechanism of a novel non-enzymatic fast repair of DNA damage, which refers exclusively to repair DNA radicals including DNA-OH adducts, DNA radical cations and anions by various endogenous, natural and synthetic compounds. The repair rate constants are as high as 109 M−1 s−1. In cells, when the enzymatic repair system was inhibited or before the enzymatic repair mechanism was initiated, DNA oxidative damage was significantly reduced by natural polyphenols. This decrease of DNA damage is assigned to the fast repair. Fast repair takes place through an electron transfer process, and docking of polyphenol into the DNA minor groove could be the essential step.

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Fast repair of DNA radicals

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