Effect of PARP1 on the distribution of KLF4 subcellular localization among cytosol, soluble nucleus and chromatin in MDA-MB-231 cells. While the activation of PARP1 in response to genotoxic stress enhances chromatin recruitment of KLF4 ORC2 were the loading control for chromatid fraction. Ponceau S were the control of nuclear soluble fraction. 