Table 2.

In vitro CAP susceptibilities of the strains

Straina	% Survival (mean ± SD)b after 2 h of exposure to:
	tPMP-1		hNP-1		RP-1
	1 μg/ml	2 μg/ml	20 μg/ml	40 μg/ml	0.5 μg/ml	1 μg/ml
UAMS-1	59 ± 19	33 ± 11	71 ± 19	43 ± 11	32 ± 7	21 ± 3
ΔlytS mutant	30 ± 18*	15 ± 4*	58 ± 24	29 ± 4*	17 ± 12*	4 ± 3*
ΔlytS Comp	56 ± 16	43 ± 17	70 ± 16	53 ± 19	27 ± 9	11 ± 5*
ΔlrgAB mutant	60 ± 18	40 ± 12	82 ± 13	48 ± 19	26 ± 11	22 ± 9
ΔlrgAB Comp	64 ± 21	48 ± 16	72 ± 22	59 ± 13	31 ± 12	24 ± 6

^aComp, complemented strain.

^b*, P < 0.05 versus the parental UAMS-1.