Oxidation of monohydric phenol substrates by tyrosinase: effect of dithiothreitol on kinetics
نویسندگان
چکیده
منابع مشابه
Tyrosinase kinetics: failure of the auto-activation mechanism of monohydric phenol oxidation by rapid formation of a quinomethane intermediate.
When 3,4-dihydroxybenzylcyanide (DBC) is oxidized by mushroom tyrosinase, the first visible product, identified as the corresponding quinomethane, exhibits an absorption maximum at 480 nm. Pulse-radiolysis experiments, in which the o-quinone is formed by disproportionation of semiquinone radicals generated by single-electron oxidation of DBC, showed that the quinomethane (A480 6440 M-1.cm-1) is...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1994
ISSN: 0264-6021,1470-8728
DOI: 10.1042/bj3040155