Copyright information:Taken from "An SOS-regulated operon involved in damage-inducible mutagenesis in "Nucleic Acids Research 2005;33(8):2603-2614.Published online 10 May 2005PMCID:PMC1092274.© The Author 2005. Published by Oxford University Press. All rights reserved () Survival curves. () Frequency of Rif mutations induced by mit C in the gene. The results shown are the mean of at least four independent experiments done in triplicate. Error bars indicate the SD.