Fig. 4

Beta hemolytic activity shown by the P-1780 MRSA strains. a Liquid cultures of wildtype, mazE mutant, and mazF mutant along with both the complement strains were spotted onto blood agar plates containing 5% sheep blood and incubated overnight at 37 °C. b Percentage hemolysis of red blood cells were calculated for the five test strains by measuring the absorbance at 540 nm. Error bars represent standard deviation. Each point and standard deviation are the measures of three independent samples per condition