硫自由基与亚铁细胞色素c的氧化。耦合氢原子和电子转移反应的直接观察。
Thiyl free radicals and the oxidation of ferrocytochrome c. Direct observation of coupled hydrogen-atom- and electron-transfer reactions.
作者信息
Forni L G, Willson R L
出版信息
Biochem J. 1986 Dec 15;240(3):905-7. doi: 10.1042/bj2400905.
Abstract
Absolute rate constants for the reaction of ferrocytochrome c with the thiyl radicals derived from cysteine, GSH, penicillamine and N-(2-mercaptopropionyl)glycine were measured by using the technique of pulse radiolysis. The reaction is believed to occur through a one-electron-transfer process, in agreement with the hypothesis that thiols may act as catalysts linking hydrogen-atom- and electron-transfer reactions.
摘要
采用脉冲辐解技术测定了亚铁细胞色素c与半胱氨酸、谷胱甘肽、青霉胺和N-(2-巯基丙酰基)甘氨酸衍生的硫自由基反应的绝对速率常数。该反应被认为是通过单电子转移过程发生的，这与硫醇可能作为连接氢原子转移和电子转移反应的催化剂的假设一致。
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The oxidation of ferrocytochrome c by Br2-, (SCN)2-, N3 and OH radicals studied by pulsed-electron and gamma-ray radiolysis.通过脉冲电子和γ射线辐解研究Br2-、(SCN)2-、N3和OH自由基对亚铁细胞色素c的氧化作用。
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Electron transfer to ferricytochrome c: reaction with hydrated electrons and conformational transitions involved.电子向高铁细胞色素c的转移：与水合电子的反应及相关构象转变。
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