Figure 1 .

The scpt mutant is sensitive to camptothecin but not to topotecan or ionizing radiation. (A) Camptothecin sensitivity of the scpt mutant as well as two null alleles of brca2. All data points represent three independent trials of five to six vials each. (B) Topotecan sensitivity of the scpt mutant and brca2^KO mutant. All data points represent three independent trials of five to six vials each. (C) Ionizing radiation sensitivity of the scpt mutant as well as two brca2 mutant alleles. All data points represent two to four independent trials of one bottle each. SDs are shown as error bars.