KINETICS OF THE ENZYMICALLY-CATALYZED OXIDATION OF INDOLEACETIC ACID
- 1 November 1956
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Biochemistry and Physiology
- Vol. 34 (6), 1233-1250
- https://doi.org/10.1139/o56-126
Abstract
A study of the kinetics of the enzymically-catalyzed decarboxylation and oxidation of indoleacetic acid provided evidence that it is a chain autoxida-tion initiated and propagated by two enzyme-controlled peroxidations. The following reaction sequence occurs.[image].where S__COOH = indoleacetic acid; S. = skatole radical; SO2. = oxidized skatole radical or indole peroxide; SO2H = final reaction product; ROH = phenolic cofactor, i.e., resorcinol; RO. = semiquinol or aryl radical.Keywords
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