Negative regulation of DNA repair gene (ung) expression by the CpxR/CpxA two-component system in Escherichia coli K-12 and induction of mutations by increased expression of CpxR.

Negative regulation of DNA repair gene (ung) expression by the CpxR/CpxA two-component system in Escherichia coli K-12 and induction of mutations by increased expression of CpxR.