Photochemical hydrogen-deuterium exchange reaction of tryptophan: the role in nonradiative decay of singlet tryptophan
Photochemical hydrogen-deuterium exchange reaction of tryptophan: the role in nonradiative decay of singlet tryptophan
复制标题
色氨酸的光化学氢-氘交换反应：单线态色氨酸非辐射衰变中的作用
DOI：
10.1021/ja00327a048
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发表时间：
1984
影响因子：
15
通讯作者：
T. Matsuura
中科院分区：
文献类型：
--
作者：
I. Saito;H. Sugiyama;A. Yamamoto;S. Muramatsu;T. Matsuura
用D/sub 2/O溶剂中的氘对色氨酸（Trp）的C4位氢进行高选择性光取代反应，研究了单重态激发态色氨酸（Trp）在水溶液中的非辐射衰变机理.结果表明，分子内质子转移是分子内质子转移的主要途径.第阿尔法.. -氨基团引起质子化物质的形成，在中性pH下单线态Trp的非辐射衰变中起重要作用。参考文献11，图1。
The mechanism of nonradiative decay of singlet excited tryptophan (Trp) in aqueous solution was investigated by a highly selective photosubstitution of the C-4 hydrogen of Trp with deuterium of solvent D/sub 2/O. It was concluded that intramolecular proton transfer from the ..cap alpha..-ammonia group giving rise to formation of a protonated species plays an important role in the nonradiative decay of singlet Trp at neutral pH. 11 references, 1 figure.