Extradiol cleavage of o-aminophenol by pyrocatechase

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Abstract

o-Aminophenol is cleaved by the intradiol dioxygenase, pyrocatechase, in an extradiol manner to give picolinic acid as the major product. Inhibition of o-aminophenol cleavage with various reagents was comparable to that observed for catechol cleavage, indicating that both reactions are catalyzed by the same enzyme. Though other substrate analogues have been shown to yield some extradiol cleavage products, this is the first case wherein >95% of the products characterized derived solely from the extradiol cleavage of the ring.

Original languageEnglish (US)
Pages (from-to)123-129
Number of pages7
JournalBiochemical and Biophysical Research Communications
Volume84
Issue number1
DOIs
StatePublished - Sep 14 1978

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