Purification and Characterization of a New Indole Oxygenase from the Leaves of Tecoma stans L.

Kunapuli, SP and Vaidyanathan, CS (1983) Purification and Characterization of a New Indole Oxygenase from the Leaves of Tecoma stans L. In: Plant Physiology, 71 (1). pp. 19-23.

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Abstract

A new indole oxygenase from the leaves of Tecoma stans was isolated and purified to homogenity. The purified enzyme system catalyzes the conversion of indole to anthranilic acid. It is optimally active at pH 5.2 and 30°C. Two moles of oxygen are consumed and one mole of anthranilic acid is formed for every mole of indole oxidized. Dialysis resulted in complete loss of the activity. The inactive enzyme could be reactivated by the addition of concentrated dialysate. The enzyme is not inhibited by copperspecific chelators, non-heme iron chelators or atebrin. It is not a cuproflavoprotein, unlike the other indole oxygenases and oxidases.

Item Type:	Journal Article
Publication:	Plant Physiology
Publisher:	American Society of Plant Biologists
Additional Information:	copy right of this article belongs to American Society of Plant Biologists.
Department/Centre:	Division of Biological Sciences > Biochemistry
Date Deposited:	02 Feb 2010 08:02
Last Modified:	19 Sep 2010 05:37
URI:	http://eprints.iisc.ac.in/id/eprint/21512

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