Figure 3From: Functional verification of the diphtheria toxin A gene in a recombinant systemPlasmid vector maps of pEGFP-N1 and pEGFP-N1-DTA. A) Main elements of pEGFP-N1-DTA. The CMV promoter drives the expression of the DTA coding sequence and EGFP coding sequences in the same ORF. B) Main elements of pEGFP-N1. The CMV promoter drives EGFP gene expression only.Back to article page