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Effect of CovR-P on dppA expression in vitro. Transcripts from Ptrc (labeled Control 1 and Control 2) and PdppA (labeled dppA1 and dppA2) preincubated with or without CovR-P prior to the addition of RNA polymerase are shown. The DNA templates used are listed below the figure, and a ribonucleotide size marker (M) (Ambion) in nucleotides (nt) is shown to the right of the image.
