TABLE 1.

MICs for (ΔacrB)KAM3(DE3) and (ΔtolC)TG1(DE3) strains expressing mtr genes

Strain/constructs	Penicillin G	Nafcillin	Tetracycline	Erythromycin
	μg/ml	μg/ml	μg/ml	μg/ml
KAM3/pACYC	32	32	4	0.5
KAM3/pACYC MtrD	32	32	16	2
KAM3/pACYC MtrCDE	64	1024	64	128
TG1/pACYC vector	16	1.5625	<0.5	2
TG1/pACYC MtrD	16	1.5625	<0.5	2
TG1/pACYC MtrCDE	64	32	12.5	64