Abstract
HUWE1 is a multi‐faceted E3 ubiquitin ligase of the HECT family with many confirmed substrates, but mechanistic understanding of its functional roles in signaling pathways remains limited. In this issue of EMBO Reports, Choe et al demonstrate a novel function for HUWE1 in promoting DNA damage tolerance mechanisms to bypass DNA lesions during replication stress, thereby preserving genome stability. The authors connect this role for HUWE1 with its function in maintaining H2AX monoubiquitination levels for efficient signaling at stalled replication forks . Thus, this work highlights HUWE1 as a novel player in the replication stress response and prompts further investigation of its regulation during replication and other cellular processes.
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