Triplet state mechanism for electron transfer oxidation of DNA
文献类型：期刊论文
| 作者 | Ma, JH（马建华） ; Lin, WZ（林维贞） ; Wang, WF（王文峰） ; Han, ZH ; Yao, SD(姚思德） ; Lin, NY（林念芸） |
| 刊名 | JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
 |
| 出版日期 | 2000 |
| 卷号 | 57期号:1页码:76 |
| ISSN号 | 1011-1344 |
| 英文摘要 | The interaction of anthraquinone-2-sulfonate with nucleotides and DNA in acetonitrile and acetonitrile water solvent mixture have been studied using KrF laser photolysis aimed at elucidation of the reaction mechanism. Laser spectroscopy directly demonstrates that the initial species from interaction of anthraquinone-2-sulfonate with nucleotides are radical cations of nucleotides and radical anion of anthraquinone-2-sulfonate. In addition, formation of ion pair from interaction of any of mucleotides with anthraquinone-2-sulfonate is synchronous with decay of triplet anthraquinone-2-sulfonate, which has provided dynamic evidence for initiation of electron transfer from DNA bases to tripler anthraquinone-2-sulfonate. Moreover, direct observation of stabilized DNA guanyl radical cation from interaction of anthraquinone-2-sulfonate with DNA has provided initial evidence for selective cleavage of DNA at guanine moiety. The solvent-separated ion pairs in acetonitrile have evidently dissociated into free ions, thereby enabling independent study of the behavior of guanyl radical cations and radical anion of anthraquinone-2-sulfonate. (C) 2000 Elsevier Science S.A. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000090033900009 |
| 公开日期 | 2012-09-25 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/10253]  |
| 专题 | 上海应用物理研究所_中科院上海原子核所2003年前 |
| 推荐引用方式 GB/T 7714 | Ma, JH,Lin, WZ,Wang, WF,et al. Triplet state mechanism for electron transfer oxidation of DNA[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY,2000,57(1):76. |
| APA | Ma, JH,Lin, WZ,Wang, WF,Han, ZH,Yao, SD,&Lin, NY.(2000).Triplet state mechanism for electron transfer oxidation of DNA.JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY,57(1),76. |
| MLA | Ma, JH,et al."Triplet state mechanism for electron transfer oxidation of DNA".JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 57.1(2000):76. |
入库方式： OAI收割
来源：上海应用物理研究所
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