金属硫蛋白与Fe2+和NO反应形成具有g = 2.039电子自旋共振信号的产物。
Metallothionein reacts with Fe2+ and NO to form products with A g = 2.039 ESR signal.
作者信息
Kennedy M C, Gan T, Antholine W E, Petering D H
机构信息
Department of Biochemistry, Medical College of Wisconsin, Milwaukee 53226.
出版信息
Biochem Biophys Res Commun. 1993 Oct 29;196(2):632-5. doi: 10.1006/bbrc.1993.2296.
The interaction of metallothionein, Fe2+, and nitric oxide has been examined by electron spin resonance spectroscopy. When either apoMT 2 or Zn-MT 2 from rabbit liver was mixed with Fe2+ and NO, paramagnetic products with g values of 2.013 and 2.039 were found. These are characteristic of iron nitrosyl thiolates with stoichiometry, Fe(NO)2(SR)2. This product was not generated when beef heart mitochondrial aconitase was used as the source of iron.
已通过电子自旋共振光谱法研究了金属硫蛋白、Fe2+和一氧化氮之间的相互作用。当将来自兔肝的脱辅基金属硫蛋白2或锌-金属硫蛋白2与Fe2+和NO混合时，发现了g值为2.013和2.039的顺磁性产物。这些是化学计量比为Fe(NO)2(SR)2的亚硝酰基硫醇铁的特征。当使用牛心线粒体乌头酸酶作为铁源时，不会生成该产物。
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