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Bactericidal activities of the RTDs and PG-1 in the presence of normal human serum. The dose-dependent bactericidal activities of RTD 1-3 and PG-1 were determined in 10 mM PIPES, pH 7.4, containing 10% normal human serum (S. aureus) (A) or 10% heat-inactivated human serum (E. coli) (B). Bactericidal activities were determined by colony counting and are expressed as the percentage of killing relative to that for control incubations lacking serum.
