Monomethylation of histone H4 lysine 20 (H4K20me1) contributes to DNA replication but the mechanism is not well understood. Here, the authors identify a conserved tandem Tudor domain of BAHCC1 as a H4K20me1-specific reader, which promotes the recruitment of MCM complex to chromatin for efficient DNA replication.
- Dongxu Li
- Zhi-Min Zhang
- Gang Greg Wang