FIG. 2.

Effect of NaCl on the staphylocidal activities of the RTDs and PG-1. Log-phase bacteria were incubated with 5 μg/ml of RTD 1-3 and PG-1 in 10 mM PIPES, pH 7.4, containing increasing concentrations of sodium chloride for 2 h at 37°C. Killing activities were determined by colony counting and were calculated as a percentage of the killing obtained in buffer alone.