Table 2.

Rates of spontaneous lacI mutations in recA730 lexA51(Def) strains carrying plasmid-expressed genes encoding wild-type pol V or pol V_Y11A mutant

GenotypelacI orientationVectorwt pol Vpol V_Y11A
rnhB+lacL3.77 (3.03–4.59)38.1 (34.2–42.0)11.3 (9.6–13.2)
lacR4.78 (3.86–5.78)56.4 (50.8–61.9)13.0 (10.9–15.2)
ΔrnhBlacL4.18 (3.40–5.03)38.2 (33.8–42.5)55.2 (48.9–61.3)
lacR5.22 (4.33–6.19)47.0 (40.8–53.2)54.4 (48.7–60.0)
GenotypelacI orientationVectorwt pol Vpol V_Y11A
rnhB+lacL3.77 (3.03–4.59)38.1 (34.2–42.0)11.3 (9.6–13.2)
lacR4.78 (3.86–5.78)56.4 (50.8–61.9)13.0 (10.9–15.2)
ΔrnhBlacL4.18 (3.40–5.03)38.2 (33.8–42.5)55.2 (48.9–61.3)
lacR5.22 (4.33–6.19)47.0 (40.8–53.2)54.4 (48.7–60.0)

Mutation rate (×108) per lacI locus per cell division along with 95% confidence intervals in brackets was calculated as described in Materials and Methods using n = 36 cultures per strain.

Table 2.

Rates of spontaneous lacI mutations in recA730 lexA51(Def) strains carrying plasmid-expressed genes encoding wild-type pol V or pol V_Y11A mutant

GenotypelacI orientationVectorwt pol Vpol V_Y11A
rnhB+lacL3.77 (3.03–4.59)38.1 (34.2–42.0)11.3 (9.6–13.2)
lacR4.78 (3.86–5.78)56.4 (50.8–61.9)13.0 (10.9–15.2)
ΔrnhBlacL4.18 (3.40–5.03)38.2 (33.8–42.5)55.2 (48.9–61.3)
lacR5.22 (4.33–6.19)47.0 (40.8–53.2)54.4 (48.7–60.0)
GenotypelacI orientationVectorwt pol Vpol V_Y11A
rnhB+lacL3.77 (3.03–4.59)38.1 (34.2–42.0)11.3 (9.6–13.2)
lacR4.78 (3.86–5.78)56.4 (50.8–61.9)13.0 (10.9–15.2)
ΔrnhBlacL4.18 (3.40–5.03)38.2 (33.8–42.5)55.2 (48.9–61.3)
lacR5.22 (4.33–6.19)47.0 (40.8–53.2)54.4 (48.7–60.0)

Mutation rate (×108) per lacI locus per cell division along with 95% confidence intervals in brackets was calculated as described in Materials and Methods using n = 36 cultures per strain.

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