Fig. 3. Sensitivity of ΔRev1-DT40 to DNA-damaging agents. (A) UV light (254 nm); (B) hydrogen peroxide; (C) NQO; (D) X-rays; and (E) cisplatin. Curves are derived from at least three separate experiments. Wild-type DT40 open circles, ΔRev1-DT40 filled diamonds. For UV curves data are shown for two additional, independently targeted ΔRev1-DT40 (filled squares and triangles). Error bars are 1 SD.