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Regulation of yibD and dgoA by PmrA. Transcription of the loci was measured by the production of β-galactosidase from the lacZ gene in the MudJ transposon. Strains compared were yibD::MudJ in a PmrAc and a PmrA-null background and dgoA::MudJ in a PmrAc and a PmrA-null background. Loci were transcribed effectively in a PmrAc background (grey bars); transcription of the loci was essentially eliminated in a PmrA-null background (black bars, barely visible).
