Figure 4.
The two TFIIH-binding regions of Rad4 are crucial for survival following UV irradiation. (a) The survival of RAD4 (blue), rad4-PP (black) and rad4-AAA yeast were determined following increasing doses of UV irradiation. (b) The survival of RAD4 (blue), rad4 (red), rad4-PP (black), rad4-AAA (orange) and rad4-PPAAA (aqua) yeast were determined following increasing doses of UV irradiation. In both (a) and (b), the y-axis represents the percentage of surviving cells (normalized to the number of viable cells not exposed to UV light) and the x-axis shows the energy levels of the UV irradiation applied (J/m2). The results are the mean ± SEM of three independent experiments.