Abstract
R loops cause genomic instability, but how cells respond to R loop-associated genomic stress is poorly understood. Matos et al. show that the ATR-Chk1 pathway senses R loop-impeded replication forks through a MUS81-mediated mechanism and protects replication forks from excessive MUS81 cleavage, revealing a MUS81-triggered and ATR-mediated feedback loop safeguarding the genome against R loops.
Original language | English (US) |
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Pages (from-to) | 514-527.e4 |
Journal | Molecular Cell |
Volume | 77 |
Issue number | 3 |
DOIs | |
State | Published - Feb 6 2020 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2019 Elsevier Inc.
Keywords
- ATR
- Chk1
- Fork reversal
- Genomic Instability
- MUS81
- R loop
- checkpoint