Maleic acid as inhibitor of enzyme reactions induced by SH-compounds

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Cxvi. Maleic Acid as Inhibitor of Enzyme Reactions Induced by Sh-compounds by Edward

IT has been shown recently [Morgan & Friedmann, 1938] that maleic acid and SH-compounds interact with the formation of well defined, stable addition compounds. We have applied this reaction to the study of some enzyme reactions which are held to be induced by SH-compounds. We have found, in every case examined, that maleic acid inhibits enzyme reactions of this kind or under other conditions de...

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C. Interaction of Maleic Acid with Thiol Compounds

IT was observed by one of us (E. J. M.) that the titratable SH of glutathione was greatly decreased by incubation with maleic acid in absence or in presence of oxygen at pH 7x4 and 370 (but not with fumaric acid). Thiolacetic acid and cysteine behaved similarly to glutathione. The results contained in this paper show that the disappearance of the SH-groups is due to the circumstance that each o...

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ژورنال

عنوان ژورنال: Biochemical Journal

سال: 1938

ISSN: 0306-3283

DOI: 10.1042/bj0320862