Mechanism of hydroxylation of aromatic compounds: II. Evidence for the involvement of superoxide anions in enzymatic hydroxylations

Kumar, Prema R and Ravindranath, SD and Vaidyanathan, CS and Rao, Appaji N (1972) Mechanism of hydroxylation of aromatic compounds: II. Evidence for the involvement of superoxide anions in enzymatic hydroxylations. In: Biochemical and Biophysical Research Communications, 49 (6). pp. 1422-1426.

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Abstract

The mechanism of hydroxylation reactions catalyzed by m-hydroxybenzoate-4-hydroxylase and anthranilate hydroxylase from Aspergillus niger was investigated using superoxide dismutase from ovine erythrocytes. Inclusion of superoxide dismutase in the assay mixtures of the two enzymes resulted in complete inhibition of the hydroxylation reaction, indicating the possible involvement of superoxide anions (O2−) in these reactions.

Item Type:	Journal Article
Publication:	Biochemical and Biophysical Research Communications
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Department/Centre:	Division of Biological Sciences > Biochemistry
Date Deposited:	24 Jun 2010 09:41
Last Modified:	19 Sep 2010 06:09
URI:	http://eprints.iisc.ac.in/id/eprint/28603

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