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| Photosensitized oxidation of tryptophan and tyrosine by aromatic ketones: A laser flash photolysis study | |
| Tang, RZ(唐睿智); Zhang, P(张鹏); Li, HX(李海霞); Liu, YC; Wang, WF(王文峰) | |
| 2012 | |
| Source Publication | SCIENCE CHINA-CHEMISTRY
 |
| ISSN | 1674-7291 |
| Volume | 55Issue:3 |
| Abstract | Photochemical processes of benzophenone (BP) and xanthone (XT) with tryptophan (TrpH) and tyrosine (TyrOH) were studied using the laser flash photolysis technique. It has been observed that the triplet state of BP and XT reacted with TrpH and TyrOH by hydrogen transfer with the formation of BP and XT ketyl radicals and oxidized radicals of Trp* and TyrO*. The related rate constants of these reactions were determined in this paper. The free energy changes (Delta G) of these reactions suggested that the proposed hydrogen transfer mechanism was thermodynamically feasible. These results provide theoretical foundation for further studying structural effects on the photochemical behaviors of proteins with triplet state BP and XT. |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000302891400010 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/13241 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Recommended Citation GB/T 7714 | Tang, RZ,Zhang, P,Li, HX,et al. Photosensitized oxidation of tryptophan and tyrosine by aromatic ketones: A laser flash photolysis study[J]. SCIENCE CHINA-CHEMISTRY,2012,55(3). |
| APA | Tang, RZ,Zhang, P,Li, HX,Liu, YC,&Wang, WF.(2012).Photosensitized oxidation of tryptophan and tyrosine by aromatic ketones: A laser flash photolysis study.SCIENCE CHINA-CHEMISTRY,55(3). |
| MLA | Tang, RZ,et al."Photosensitized oxidation of tryptophan and tyrosine by aromatic ketones: A laser flash photolysis study".SCIENCE CHINA-CHEMISTRY 55.3(2012). |
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