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Effect of H-NS on the expression of vpsA-, vpsL-, vpsR-, and vpsT-lacZ fusions. Strains C7258ΔlacZ (WT) and AJB80 (Δhns; filled bar) containing vpsA-, vpsL-, vpsR-, and vpsT-lacZ fusions were grown in LB at 37°C, and β-galactosidase activities were expressed in Miller units. Each value is the mean for six independent cultures. The error bars indicate the standard deviations.
