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. 2006 Mar 9;34(5):1470–1480. doi: 10.1093/nar/gkl023

Figure 4.

Figure 4

β-glucuronidase activities of the R.etli gusA fusions in E.coli Qualitative evaluation of the β-glucuronidase activities of E.coli BW21038 transformants containing different R.etli promoter regions fused to the gusA gene of the promoter-trap vector pBBMCS53, with or without the expression of sigA present in the plasmid pRKS70. Each plate included positive (pHER; + symbol) and negative (pBBMCS53; − symbol) controls. Each pair of strains, marked with the same number, contain the same transcriptional fusion. Strains marked with an asterisk harbor the pRKS70, which expresses the sigA gene of R.etli. The strains contain the following promoter regions: 1, pglyQ; 2, pyhch1154; 3, prpoH1; 4, pyhch0528; 5, pypch00326; 6, pyhch00096; 7, pyhch00468; 8, pyhch00334 and 9, peda.