TABLE 3.

Effects of deletion mutants of efflux-pump genes on TMP sensitivity

Strain	MIC for TMP (μg/mL)
E. coli W3110	0.32
E. coli W3110 ΔcydD	1.28
E. coli W3110 ΔacrA	0.08
E. coli W3110 ΔacrB	0.04
E. coli W3110 ΔtolC	0.16
E. coli W3110 ΔcydDΔacrA	0.08
E. coli W3110 ΔcydDΔacrB	0.16
E. coli W3110 ΔcydDΔtolC	0.16
E. coli W3110 ΔgrxAΔacrA	0.08
E. coli W3110 ΔgrxAΔtolC	0.16
E. coli W3110 ΔgshAΔacrA	0.08
E. coli W3110 ΔgshAΔtolC	0.32
E. coli W3110 ΔgshBΔacrA	0.08