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. 1982 Sep;151(3):1320-5.
doi: 10.1128/jb.151.3.1320-1325.1982.

Requirement of Fnr and NarL functions for nitrate reductase expression in Escherichia coli K-12

V Stewart

Requirement of Fnr and NarL functions for nitrate reductase expression in Escherichia coli K-12

V Stewart. J Bacteriol. 1982 Sep.

Abstract

I used a chlC-lac operon fusion to study regulatory mutations which affect nitrate reductase expression in Escherichia coli. A NarL- mutant apparently lacks a nitrate-specific positive regulatory component. Furthermore, an fnr (nirR) mutation prevented enzyme induction under any conditions. These data are consistent with a two-step, positive control model for nitrate reductase regulation.

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References

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