Regulation of PCNA ubiquitination is required for initiating lesion bypass and ensuring subsequent high-fidelity replication and ensure genome stability. Here, the authors reveal that BAZ1B inhibits ATAD5-UAF1-USP1, thereby preventing premature PCNA de-ubiquitination during lesion bypass under replicative stress.
- Yeongjae Kim
- Na Young Ha
- Sukhyun Kang