Fig. 4.
Accumulation of DNA damage in MEF, irrespective of Med1 genotype. Alkaline elution analysis of [3H]thymidine-labeled genomic DNA from MEF of the indicated genotype treated or not with 10 μg/ml MNNG for 1 h. Percent of radioactivity remaining on filter is plotted as a function of elution time. Results are representative of three independent experiments.