Stationary phase expression of the arginine biosynthetic operon argCBH in Escherichia coli

BackgroundArginine biosynthesis in Escherichia coli is elevated in response to nutrient limitation, stress or arginine restriction. Though control of the pathway in response to arginine limitation is largely modulated by the ArgR repressor, other factors may be involved in increased stationary phase and stress expression.ResultsIn this study, we report that expression of the argCBH operon is induced in stationary phase cultures and is reduced …