TABLE 1.

Differential regulation of the lsrRK and lsrACDBFG promoters by IHF

Strain	Genotype	β-Galactosidase activity (Miller units)
652-TE-23	Wild type-lsrR::lsrR23-lacZ	33.3 ± 1.1
652-TE78-23	ΔihfA-lsrR::lsrR23-lacZ	123.5 ± 0.9
652-TE79-23	ΔihfB-lsrR::lsrR23-lacZ	133.0 ± 3.4
652-TE-75	Wild type-lsrA::lsrA75-lacZ	96.6 ± 3.7
652-TE78-75	ΔihfA-lsrA::lsrA75-lacZ	17.1 ± 0.8
652-TE79-75	ΔihfB-lsrA::lsrA75-lacZ	23.8 ± 0.6