TABLE 2 .

MICs of different antibiotics for the SA564 and 8325-4 wild types and clpX and clpX ltaS mutants

Antibiotic	MIC (mg/liter)
	8325-4			SA564
	wt	clpX	clpX ltaS382STOP	wt	clpX	clpX ltaSH476Q
Oxacillin	0.19–0.25	0.38–0.5	0.094	0.38–0.5	1.5–4	0.25
Imipenem	0.047	0.047	0.032	0.064	0.064	0.023
Ertapenem	0.19	0.19	0.094	0.19	0.25	0.19
Cefoxitin	3	3	0.38	4	4	1
Daptomycin	0.38–0.75	0.75–1	0.38	0.25	0.38	0.38
Vancomycin	1.5	1.5	0.25	1.5	1	0.19