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. 2008 Dec 5;191(4):1152–1161. doi: 10.1128/JB.01292-08

FIG. 3.

FIG. 3.

The viabilities of B. subtilis and E. coli bearing the lexA(Ind−) allele differ after ionizing-radiation-induced DNA damage. (A) Sensitivity to ionizing radiation of wild-type (▪), lexA(Ind−) (⧫), and recA::neo (ΔrecA [•]) B. subtilis strains after exposure to a 0 to 150 Gy. (B) Sensitivity to ionizing radiation of wild-type (▪), lexA(Ind−) (⧫), and ΔrecA::tc (ΔrecA [•]) E. coli strains. Each strain was irradiated in at least quadruplicate. Error bars indicate the standard error between samples. For both B. subtilis and E. coli the lexA(Ind−) strains encode a noncleavable form of LexA bearing a G92D missense mutation in B. subtilis and a G85D missense mutation in E. coli.