(B) ssDNA repair efficiency of the indicated mutants as determined from the maximal and final percentages of cells with RPA foci during the time course (See Figures EV2D-E for the time course analyses; cells were synchronized in G1 and released into S phase in the presence of 0.033% MMS for 1 hour, treated with 2.5% sodium thiosulfate to inactivate the MMS, washed and released into fresh medium for different times). Data information: The mean and SEM of 3 independent experiments are shown. Asterisks indicate statistically significant differences according to an unpaired two-tailed Student's t-test. One, two and three asterisks represent p-values <0.05, <0.01 and <0.001, respectively. 