ATR safeguards replication forks against APOBEC3B-induced toxic PARP1 trapping
Pedro Ortega, Elodie Bournique, Junyi Li…·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.