Evidence that biliverdin-IX beta reductase and flavin reductase are identical

被引:39
作者
Shalloe, F [1 ]
Elliott, G [1 ]
Ennis, O [1 ]
Mantle, TJ [1 ]
机构
[1] TRINITY COLL DUBLIN,DEPT BIOCHEM,DUBLIN 2,IRELAND
关键词
D O I
10.1042/bj3160385
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
A search of the database shows that human biliverdin-IX beta reductase and flavin reductase are identical. We have isolated flavin reductase from bovine erythrocytes and show that the activity co-elutes with biliverdin-IX beta reductase. Preparations of the enzyme that are electrophoretically homogeneous exhibit both flavin reductase and biliverdin-IX beta reductase activities; however, they are not capable of catalysing the reduction of biliverdin-IX alpha. Although there is little obvious sequence identity between biliverdin-IX alpha reductase (BVR-A) and biliverdin-IX beta reductase (BVR-B), they do show weak immunological cross-reactivity. Both enzymes bind to 2',5'-ADP-Sepharose.
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页码:385 / 387
页数:3
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