Intramolecular Electron Transfer in the Photooxidized Peptides Tyrosine-Histidine and Histidine-Tyrosine: A Time-Resolved CIDNP Study

被引：20

作者：

Morozova, Olga B. ^{[1
]}

Yurkovskaya, Alexandra V. ^{[1
]}

机构：

[1] Int Tomog Ctr, Novosibirsk 630090, Russia

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2010年 / 49卷 / 43期

关键词：

dynamic nuclear polarization; electron transfer; histidyl radicals; nuclear paramagnetic relaxation; photooxidation; LASER FLASH-PHOTOLYSIS; AQUEOUS-SOLUTION; AMINO-ACIDS; TRYPTOPHAN; 2,2'-DIPYRIDYL; DIPEPTIDE; REDUCTION;

D O I：

10.1002/anie.201003780

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Invisible to other methods, reactions of the histidyl radical could be followed by NMR spectroscopic detection of the histidine signal through the use of time-resolved chemically induced dynamic nuclear polarization (CIDNP). CIDNP decay of the His signal during photooxidation of the peptides His-Tyr and Tyr-His pointed to electron transfer from the tyrosine residue to the histidyl radical (see scheme for Tyr-His). © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：7996 / 7999

页数：4

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