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一种芽孢杆菌属细菌对烟酸的氧化作用:烟酸和6-羟基烟酸羟化酶的纯化及特性

Oxidation of nicotinic acid by a Bacillus species: purification and properties of nicotinic acid and 6-hydroxynicotinic acid hydroxylases.

作者信息

Hirschberg R, Ensign J C

出版信息

J Bacteriol. 1971 Nov;108(2):751-6. doi: 10.1128/jb.108.2.751-756.1971.

Abstract

The enzymes of a Bacillus species that hydroxylate nicotinic acid to 6-hydroxynicotinic acid and 6-hydroxynicotinic acid to 2,6-dihydroxynicotinic acid were purified and characterized. The purified enzymes contained approximately two molecules of flavine and eight molecules of iron per molecule of enzyme. The enzymes were large (molecular weight, 400,000 to 450,000) and appeared to consist of subunits.

摘要

一种芽孢杆菌属的将烟酸羟基化为6-羟基烟酸以及将6-羟基烟酸羟基化为2,6-二羟基烟酸的酶被纯化并进行了特性鉴定。纯化后的酶每分子酶含有约两个黄素分子和八个铁分子。这些酶很大(分子量为400,000至450,000),似乎由亚基组成。

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