Fig. 2

So-D2 and MtDef5 γ-core motif peptides fail to induce PA4774 gene expression. Effects of So-D2 γ-core peptide (a) and MtDef5 γ-core peptide (b) at sub-minimal inhibitory concentrations of 0, 5, 15, or 30 μg/mL or polymyxin B at 0.5 μg/mL on the expression of the PA4774::lux transcriptional fusion in planktonic cultures in LB broth. Gene expression was normalized for growth and counts per second (CPS)/OD600 values for the average of the triplicates are presented. Each growth experiment was performed three times and representative curves are shown. The standard errors were within 10% of the mean