Figure 1From: A comparative analysis of the properties of regulated promoter systems commonly used for recombinant gene expression in Escherichia coliIllustration showing how the different constructs in the study were generated based on pSB-M1b. The upper part shows how the alternative regulator/promoter systems were incorporated. pSB-M1b-1-17 contains a variant of the Pm core promoter termed ML1-17 (see text). The lower part shows the oriV/trfA region in pSB-M1b that was replaced with the pMB1 ori described in Table 1.Back to article page