Figure 3From: Ranked prediction of p53 targets using hidden variable dynamic modelingExperimentally determined p53 activity profile. The activity profile of p53 was measured by Western blot to determine the levels of ser-15 phosphorylated p53 (ser15P-p53). ser-15 phosphorylation is a measure of p53 activity. IR, ionizing radiation. IR, ionizing irradiation.Back to article page