Replisomes duplicate genomes while SMC complexes organize the DNA. Replisomes and SMC collide frequently but it is unclear how the collisions are resolved. Here, the authors find that in Bacillus subtilis cells, SMC does not affect replisome progression, but replisomes restrict SMC movement by blocking and unloading it.
- Qin Liao
- Hugo B. Brandão
- Xindan Wang