Mutations in the DNA helicaseBLM cause Bloom syndrome, which is characterized by slow replication fork progression and genetic instability. Here, cells lacking BLMare shown to have a defect in cytidine deaminase, which alters the pyrimidine pool and results in replication fork progression with altered velocity.
- Pauline Chabosseau
- Géraldine Buhagiar-Labarchède
- Mounira Amor-Guéret