IDENTIFICATION OF AN OPERON INVOLVED IN THE ASSIMILATORY NITRATE-REDUCING SYSTEM OF AZOTOBACTER-VINELANDII

被引：27

作者：

RAMOS, F

BLANCO, G

GUTIERREZ, JC

LUQUE, F

TORTOLERO, M

机构：

[1] UNIV SEVILLA,FAC BIOL,DEPT MICROBIOL,APARTADO 1095,E-41080 SEVILLE,SPAIN

[2] UNIV SEVILLA,FAC BIOL,DEPT GENET,E-41080 SEVILLE,SPAIN

来源：

MOLECULAR MICROBIOLOGY | 1993年 / 8卷 / 06期

关键词：

D O I：

10.1111/j.1365-2958.1993.tb01659.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：

A number of mutants lacking nitrate reductase (Nas-) or nitrite reductase (Nis-) activities have been isolated and characterized. An operon including two new genes (nasA and nasB) has been defined and cloned from an Azotobacter vinelandii gene bank. nasA encodes for nitrite reductase apoenzyme, whereas nasB is specific for nitrate reductase activity. Nitrate reductase exerts a regulatory effect on nasAB.

引用

页码：1145 / 1153

页数：9

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