Exotoxin-synthesis-inhibition by hemoglobin-like synthetic peptide (A; SP-1; 0% positively-charged amino acids), SP-2 (B; SP-2; 50% positively-charged amino acids), and (C; SP-3; 70% positively-charged amino acids) effects on <i>S. aureus</i> MN8 TSST-1 production; SP-2 and SP-3 effects on <i>S. aureus</i> MNPE TSST-1 production (D).

<p><i>S. aureus</i> MN8 and MNPE cultures were incubated at 37°C for 9 h with shaking 200 revolutions per minute in the presence of indicated amounts of anti-infective peptides. Subsequently, TSST-1 amounts were quantified by Western immunoblotting for MN8 and double immunodiffusion for MNPE.