硒代半胱氨酸
化学
硒
谷胱甘肽过氧化物酶
拉曼光谱
过氧化物酶
过氧化氢
酶
谷胱甘肽
生物化学
有机化学
半胱氨酸
光学
物理
作者
Javier Sánchez López,Tze‐Chi Jao,Walter E. Rudzinski
标识
DOI:10.1016/s0162-0134(00)80038-0
摘要
The trace element selenium is known to be a part of the enzyme glutathione peroxidase (glutathione-hydrogen peroxide oxidoreductase, E.C.1.11.1.9). Studies have shown that selenium in the enzyme exists in at least two forms or oxidation states. It is probable that selenium has been incorporated into the enzyme as the selenocysteine amino acid. In the present study, the Raman spectra of selenocystine and selenomethionine have been obtained, structural assignments have been verified, and the behavior of the two selenoamino acids have been monitored under varying conditions of oxidative stress. The assignments will assist in the interpretation of the spectrum of the actual enzyme.
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