Fig 3. Effect of pH and NaCl on the antibacterial activity of PlyE146.

To study the effect of pH (A) and NaCl (B) on E. coli K12, logarithmic growing cells were exposed to PlyE146 (400 μg/mL) in NaPi buffer at different pH and NaCl concentrations for 2 h at 37°C, serially diluted and plated for colony counts. Results represent the mean ± standard deviation of triplicate experiments.