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. Author manuscript; available in PMC: 2015 Dec 4.
Published in final edited form as: Mol Microbiol. 2014 Jul 13;93(4):748–758. doi: 10.1111/mmi.12690

Fig. 4. BvgAS-independent repression by DRE in B. pertussis.

Fig. 4

The effects of DRE under different growth conditions and genetic backgrounds were determined by comparing Pfim3-15C with its DRE-free variant H13 (A, B and C), and PgapA* with its DRE-containing variant PgapA*-DRE (D, E and F). B. pertussis strains BP536 (wild type) were grown on BG agar supplemented with 50 mM MgSO4 (B and E) or with no MgSO4 added (A, and D). B. pertussis strains BP1526 (ΔbvgA) were grown on BG agar supplemented without 50 mM MgSO4 (C and F). Light output was measured as described in Experimental Procedures. Error bars indicate standard deviation as calculated from the results of four independent assays.