Evidence for the presence of quinone methide isomerase in the metacercarial cyst of Microphallus sp. (Trematoda: Microphallidae).

Abstract	The white colour of the cyst wall of the metacercaria of Microphallus sp., even in the presence of dihydroxy phenol and phenoloxidase, is due to proteins generated through a possible quinone methide interaction. The quinone methide isomerase converts the phenoloxidase mediated quinone into beta-hydroxy catechol. Formation of catechol from quinone by cyst extracts was observed spectrophotometrically and chromatographically. This enzyme is involved in detoxification of excess quinone and beta-sclerotization of the cyst wall.
Authors	K Nellaiappan, R Ramakrishnan, M J Banu
Journal	Parasitology (Parasitology) Vol. 103 Pt 2 Pg. 299-303 (Oct 1991) ISSN: 0031-1820 [Print] England
PMID	1745555 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References	Benzoquinones Catechols quinone Isomerases Intramolecular Oxidoreductases quinone methide isomerase catechol
Topics	Animals Benzoquinones (metabolism) Catechols (metabolism) Chromatography, Thin Layer Intramolecular Oxidoreductases Isomerases (analysis) Spectrophotometry Trematoda (enzymology)

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