Figure 2.

Graphic representation of quantified repair rates for the template strand of the URA3 locus from position −50 to +100 in (a) repair proficient RAD⁺ background and in isogenic (b) rad7Δ, (c) rad26Δ, and (d) rad7Δrad26Δ mutant strains. Repair half-time values, determined as the time at which 50% of the initial CPD signal was removed, were calculated for each individual CPD position and depicted above its corresponding dipyrimidine position. Repair t½ = U indicates that CPDs were unrepaired after 2 hr of incubation.