Figure 4.

Promoter activity represented as expression of the reporter gene rppA in S. tsukubaensis wild type and mutant strains (light gray – WT, dark gray – ΔfkbR, white – ΔfkbN). The ΔA values represent the difference in absorbance at 270 nm, between the sample with an active promoter and the sample derived from the same mutant strain which was transformed by a promoterless plasmid (blank).

Goranovič et al. BMC Microbiology 2012 12:238   doi:10.1186/1471-2180-12-238
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