TABLE 5.

Inability of Ler to complement hns mutation

Strain	Genotype	β-Galactosidase activitya
		No plasmid	pHNSb	pLERc
THK60	hns+ proU::lacZ	200 ± 16	27 ± 2	137 ± 9
THK62	hns proU::lacZ	553 ± 16	30 ± 6	932 ± 17
THK88	hns+ fimB::lacZ	74 ± 2	26 ± 2	54 ± 1
THK90	hns fimB::lacZ	417 ± 8	30 ± 3	475 ± 7

^aβ-Galactosidase activity (in Miller units) present in bacteria containing indicated promoter-reporter fusion ± standard error. 

^bpTHK113 encoding H-NS. 

^cpCVD456 encoding Ler.