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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 PublicationSCIENCE CHINA-CHEMISTRY
ISSN1674-7291
Volume55Issue:3
AbstractPhotochemical 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 IDWOS:000302891400010
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13241
Collection中科院上海应用物理研究所2011-2019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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