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Thiyl free radicals and the oxidation of ferrocytochrome c. Direct observation of coupled hydrogen-atom- and electron-transfer reactions.

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.

SUBMITTER: Forni LG

PROVIDER: S-EPMC1147505 | biostudies-other | 1986 Dec

REPOSITORIES: biostudies-other

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Thiyl and phenoxyl free radicals and NADH. Direct observation of one-electron oxidation.

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