Fig. 6From: Effect of episomally encoded DNA polymerases on chemically induced mutagenesis at the hisG46 target in Ames testDose dependence of mutagenesis induced by AG. Azidoglycerol (AG) has been applied at the doses indicated on the X-axis to the classical Ames tester strains and their PolV-deficient derivatives (left panel) or to the new Ames tester strains overexpressing the activated PolRI* and SamA’B polymerase subunits from the uninduced (middle panel) or induced (right panel) lac promoter. The induced His+ revertant counts displayed on the Y-axis were calculated by subtracting the average spontaneous revertant number for a given strain from the total number of revertants per plate values. The strains used are shown in the graph legend and described in Table 1 in detailBack to article page