Fig. 1From: Chromogenic Escherichia coli reporter strain for screening DNA damaging agentsReporter plasmid map used in this study. A elements present in the recA promoter sequence used. B plasmid map and PCR confirmation of the insert of the promoter sequence (261 bp amplicon) and promoter and AmilCP coding sequence PCR verification (936 bp PCR amplicon). Restriction sites are indicated and in parenthesis the site of cleavageBack to article page