Epigenetic aspects of HP1 exchange kinetics in apoptotic chromatin

► H3K9 and H4 acetylation was significantly decreased in apoptotic bodies. ► Apoptotic bodies were characterized by a high level of H3K9 methylation. ► JMJD2b histone demethylase and Polycomb group-related BMI1 protein did not recover in apoptotic chromatin. ► HP1 mobility in apoptotic cells appeared to be unique.