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Oxidation of two hydroxylated ochratoxin A metabolites by alcohol dehydrogenase
Applied and Environmental Microbiology
|May 1, 1983
Abstract:
(4R)-4-hydroxyochratoxin A, (4S)-4-hydroxyochratoxin A, and 10-hydroxyochratoxin A, all formed from ochratoxin A, were incubated with alcohol dehydrogenase in the presence of NAD. Only (4R)-4-hydroxyochratoxin A and 10-hydroxyochratoxin A acted as substrates for the enzyme. K(m) and turnover number for 10-hydroxyochratoxin A were 110 muM and 0.1 s(-1), respectively.