ATR safeguards replication forks against APOBEC3B-induced toxic PARP1 trapping
Pedro Ortega, Elodie Bournique, Junyi Li, Ambrocio Sanchez, Gisselle Santiago, Brooke R. Harris, Josefine Striepen, John Maciejowski, Abby M. Green, Rémi Buisson
This study identifies APOBEC3B as the enzyme responsible for ssDNA breakage during replication catastrophe induced by ATR inhibition, revealing a mechanism for PARP1 trapping and synthetic lethality with PARP inhibitors.
Science Advances · Apr 16, 2025Peer-reviewedMolecular Biology