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Figure 4 | BMC Microbiology

Figure 4

From: Domain swapping reveals that the N-terminal domain of the sensor kinase KdpD in Escherichia coliis important for signaling

Figure 4

The response of different KdpD-Usp chimeras to salt stress. Plasmids expressing the indicated proteins were transformed in E. coli HAK006 as reporter strain. Cells were grown in minimal medium containing 5 mM K+ with or without 0.4 M sodium chloride. Cells were harvested in the mid-logarithmic growth phase, and β-galactosidase activity was determined, given in Miller Units [39]. The data are average values obtained from at least three independent experiments, and error bars represent standard deviations.

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