Article
Roles of RpoS (sigmaS), IHF and ppGpp in the expression of the hmp gene encoding the flavohemoglobin (Hmp) of Escherichia coli K-12.
Molecular & general genetics : MGG - 20 May 1997
Membrillo-Hernandez J, Cook G M, Poole R K
Abstract excerpt
The Escherichia coli K-12 gene hmp encodes the flavohemoglobin Hmp. A hmp promoter phi(hmp-lacZ)-operon fusion was constructed in the chromosome and its activity measured during the growth cycle. Logarithmically growing cultures had low levels of phi(hmp-lacZ) expression, which increased two-fold at the onset of stationary phase in rich medium. The effect was abolished in a strain carrying a null allele of the...
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