Fluorescent characterization off peroxynitrite-induced thiyl radicals

被引:0
|
作者
Dang, YM [1 ]
Guo, XQ [1 ]
机构
[1] Xiamen Univ, Dept Chem, Key Lab Analyt Sci MOE, Xiamen 361005, Peoples R China
来源
关键词
spin-labeling; fluorescent probe; thiyl radical; peroxynitrite;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A spin-labeling fluorophore (Ac-Tempo(.)), formed by combining with an acridine with a paramagnetic nitroxide (4-hydroxyl-2, 2, 6, 6-tetramethylpiperidinyl-1-oxy), was explored for peptide-based thiyl radicals generated through the reaction between gluththione and peroxynitrite. Ac-Tempo(.), a weak fluorescent compound, showed a dramatic increase in fluorescence intensity after interaction with thiyl radicals, and could be employed to probe peptide-based thiyl radicals.
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页码:424 / 427
页数:4
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