INVOLVEMENT OF VERATRYL ALCOHOL AND ACTIVE OXYGEN SPECIES IN DEGRADATION OF A QUINONE COMPOUND BY LIGNIN PEROXIDASE

被引：11

作者：

MOMOHARA, I

MATSUMOTO, Y

ISHIZU, A

机构：

[1] Wood Chemistry Laboratory, Faculty of Agriculture, University of Tokyo, Bunkyo-ku, Tokyo, 113

来源：

FEBS LETTERS | 1990年 / 273卷 / 1-2期

关键词：

Decolorization; Lignin peroxidase; Phanerochaete chrysosporium; Quinone; Superoxide anion; Veratryl alcohol;

D O I：

10.1016/0014-5793(90)81074-X

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Degradation of 2-hydroxy-1,4-naphthoquinone (HNQ) by lignin peroxidase is discussed. Degradation rat was remarkably increased by an increase in veratryl alcohol concentration. Degradation is partly prevented by adding OH. scavenger (mannitol or DMSO) to the reaction mixture. Addition of O2-. scavenger (Mn2+) to the reaction mixture completely prevents the degradation. These results suggest that active oxygen species formed in the lignin peroxidase-H2O2-veratryl alcohol system play an important role in HNQ degradation. © 1990.

引用

页码：159 / 162

页数：4

共 13 条

[1] CHARACTERIZATION OF THE OXYCOMPLEX OF LIGNIN PEROXIDASES FROM PHANEROCHAETE-CHRYSOSPORIUM - EQUILIBRIUM AND KINETICS STUDIES [J].