The authors demonstrate that cells that are deficient in H3K9 trimethylation display more compact mitotic chromosomes decorated with aberrantly high H3S10 phosphorylation and H3K27 trimethylation. By quantitative proteomics, they show that H3K9 trimethylation is essential for mitotic bookmarking by Esrrb and thus for the maintenance of epigenetic memory during cell division.
- Dounia Djeghloul
- Andrew Dimond
- Amanda G. Fisher