TABLE 1.

MIC (μg/ml) of the indicated antibiotics for MukB- and TolC-deficient cells

Antibiotic used, by temp	MIC (μg/ml)
	WT cells	ΔtolC cells	ΔmukB cells	ΔtolC ΔmukB cells
37°C
Novobiocin	160	1	1.25	0.048
Erythromycin	100	2	50	1
Norfloxacin	0.08	0.04	0.04	0.01
Nalidixic acid	6.4	0.8	1.6	0.25
Rifampin	10	6.4	2.0	2.5
23°C
Novobiocin	813	4	32	0.31
Erythromycin	10	2	13	1
Norfloxacin	0.032	0.02	0.04	0.01
Nalidixic acid	6.4	0.4	6.4	0.25
Rifampin	3.2	3.2	1.6	1.6