IDENTIFICATION OF A TYROSINASE FROM A PERIPHYTIC MARINE BACTERIUM

被引：33

作者：

KELLEY, SK

COYNE, VE

SLEDJESKI, DD

FUQUA, WC

WEINER, RM

机构：

[1] UNIV MARYLAND,DEPT MICROBIOL,COLLEGE PK,MD 20742

[2] UNIV MARYLAND,CTR MARINE BIOTECHNOL,COLLEGE PK,MD 20742

来源：

FEMS MICROBIOLOGY LETTERS | 1990年 / 67卷 / 03期

关键词：

Bacterial pigments; Melanin; Tyrosinase;

D O I：

10.1016/0378-1097(90)90008-E

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

A newly isolated periphytic marine bacterium has been shown to synthesize a true tyrosinase. The enzyme exhibited both cresolase and catecholase functions and catalyzed the biosynthesis of melanin from l-tyrosine. Enzyme activity was enhanced in the presence of oxidants and was inhibited by copper chelating agents such as diethyldithiocarbamic acid and cyanide. The apparent molecular weigth of the 2-40 tyrosinase (67 000) makes this enzyme the largest known procaryote tyrosinase. © 1990.

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页码：275 / 280

页数：6

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