M18BP1

New research published in Nature reports that M18BP1, once phosphorylated, activates the otherwise autoinhibited condensin II complex, enabling mitotic DNA compaction in cells. The finding explains how cells relieve condensin II's built-in brake at mitosis, ensuring chromosomes condense properly before division. The work is drawing attention among cell biologists studying chromosome architecture and the regulation of the condensin complexes.

A study published in Nature describes the mechanism by which M18BP1 activates condensin II, the protein complex responsible for compacting DNA during mitosis. The findings clarify how cells achieve proper chromosome condensation before cell division, a process essential for accurate genome inheritance and relevant to understanding cell division errors.