Table 5.

Fluoroquinolones susceptibilities of Red/ET recombination mutants derived from HUE1.

Strain	MIC (mg/L)					MIC reduction (-fold)a
	CIP	LVX	URX	STX	NOR
HUE1	4	8	4	2	16	–
HUE1- ΔoqxAB	2	2	1	0.5	8	2 or 4
HUE1-ΔqnrS1	0.25	0.25	0.125	0.125	0.5	16 or 32
HUE1-ΔoqxAB qnrS1	0.06	0.125	0.06	0.06	0.5	32 or 64
HUE1-ΔacrA	1	1	0.5	0.25	4	4 or 8
HUE1-ΔacrA oqxAB	0.125	0.125	0.125	0.03	0.25	32 or 64
HUE1-ΔacrA qnrS1	0.06	0.06	0.03	0.03	0.25	64 or 128
HUE1-ΔacrB	1	1	0.5	0.25	4	4 or 8
HUE1-ΔacrAB	1	1	0.5	0.25	4	4 or 8
HUE1-ΔacrAB oqxAB	0.125	0.125	0.125	0.03	0.25	32 or 64
HUE1-ΔacrAB qnrS1	0.06	0.06	0.03	0.03	0.5	32–128,
HUE1-ΔtolC	0.06	0.125	0.06	0.015	0.25	64 or 128
HUE1-ΔtolC acrAB	0.06	0.125	0.125	0.03	0.25	32 or 64
HUE1-ΔtolC oqxAB	0.06	0.125	0.125	0.03	0.25	32 or 64
HUE1-ΔtolC qnrS1	0.002	0.004	0.008	0.002	0.015	512–2056
HUE1B-Curoqxqnr	0.008	0.008	0.008	0.004	0.03	512 or 1024
HUE1B-Curoqxqnr-ΔacrB	0.008	0.008	0.008	0.004	0.03	512 or 1024
HUE1-ΔacrF	2	2	2	1	8	2 or 4
HUE1-ΔacrD	2	4	2	1	8	2
HUE1-ΔmdtK	2	4	1	1	8	2 or 4
HUE1-ΔmdfA	2	4	2	1	8	2 or 4

^aRelative value of HUE1.