Oxidizability of cysteine and short cysteine-containing peptides by molecular oxygen

被引：0

作者：

Dorcak, Vlastimil ^{[1
]}

Mader, Pavel ^{[2
]}

Vesela, Vera ^{[3
]}

Fedurco, Milan ^{[4
]}

Sestakova, Ivana ^{[5
]}

机构：

[1] Acad Sci Czech Republ, Inst Biophys, CS-61265 Brno, Czech Republic

[2] Czech Univ Agr, Fac Agrobiol Food & Nat Resources, Dept Chem, Prague, Czech Republic

[3] Slovak Acad Sci, Inst Expt Phys, Dept Biophys, Kosice 04353, Slovakia

[4] Univ Geneva, Dept Chem, Geneva, Switzerland

[5] Acad Sci Czech Republ, J Heyrovsky Inst Phys Chem, Brno, Czech Republic

来源：

CHEMIA ANALITYCZNA | 2007年 / 52卷 / 06期

关键词：

cysteine; cysteine peptides; oxidation; thiols; disulfides; polarography; Raman spectroscopy;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Rate of oxidation of cysteine, gamma-glutamylcysteine, cysteinylglycine and reduced glutathione by molecular oxygen has been studied polarographically in alkaline buffers by following the time changes in anodic and cathodic limiting currents of the SH- and SS-groups, respectively. Oxidation of thiols proceeds considerably faster in-contact with metallic mercury. Obtained results have been supported by Raman spectroscopy measurements.

引用

页码：979 / 988

页数：10

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