Cited by 227DNA Repair MechanismsUbiquitin and proteasome pathwaysEpigenetics and DNA Methylation

Replication fork slowing and reversal upon DNA damage require PCNA polyubiquitination and ZRANB3 DNA translocase activity.

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Vujanovic, Marko, Krietsch, Jana, Raso, Maria Chiara, Terraneo, Nastassja, Zellweger, Ralph, Schmid, Jonas A., Taglialatela, Angelo, Huang, Jen-Wei +8 more·2017·Molecular Cell

Abstract

DNA damage tolerance during eukaryotic replication is orchestrated by PCNA ubiquitination. While monoubiquitination activates mutagenic translesion synthesis, polyubiquitination activates an error-free pathway, elusive in mammals, enabling damage bypass by template switching. Fork reversal is driven in vitro by multiple enzymes, including the DNA translocase ZRANB3, shown to bind polyubiquitinated PCNA. However, whether this interaction promotes fork remodeling and template switching in vivo was unknown. Here we show that damage-induced fork reversal in mammalian cells requires PCNA ubiquitination, UBC13, and K63-linked polyubiquitin chains, previously involved in error-free damage tolerance. Fork reversal in vivo also requires ZRANB3 translocase activity and its interaction with polyubiquitinated PCNA, pinpointing ZRANB3 as a key effector of error-free DNA damage tolerance. Mutations affecting fork reversal also induced unrestrained fork progression and chromosomal breakage, suggesting fork remodeling as a global fork slowing and protection mechanism. Targeting these fork protection systems represents a promising strategy to potentiate cancer chemotherapy.

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Crossref · 10.1016/j.molcel.2017.08.010

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  • K63-linked polyubiquitination of PCNA stimulates template switching by creating a binding platform for ZRANB3.

    “Recently, K63-linked polyubiquitination of PCNA was found to stimulate template switching by creating a binding platform for the DNA translocase, ZRANB3 (Vujanovic et al., 2017).”

    From USP7 Is a Master Regulator of Genome Stability (2020) · cites this paper as Vujanovic et al., 2017

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Authors
Vujanovic, M., Krietsch, J., Raso, M. C., Terraneo, N., Zellweger, R., Schmid, J. A., Taglialatela, A., Huang, J.-W., Holland, C. L., Zwicky, K., Herrador, R., Jacobs, H., Cortez, D., Ciccia, A., Penengo, L., & Lopes, M.
Affiliations
  • University of Zurich (CH)
  • Columbia University Irving Medical Center (US)
  • Vanderbilt University (US)
  • The Netherlands Cancer Institute (NL)
Corresponding author
Lopes, Massimo
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2017-09
Volume
67
Issue
5
Pages
882-890.e5
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2751450140
Cited by
227
References
39
Citations by year
2026: 10 · 2025: 19 · 2024: 25 · 2023: 27 · 2022: 23 · 2021: 28 · 2020: 35 · 2019: 26 · 2018: 27 · 2017: 7
FWCI
10.62
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DORA PSI (Paul Scherrer Institute) (submittedVersion, cc-by-nc-nd)
Funders
  • SNF (31003A_146924, 31003A_169959, 31003A_166370)
  • ERC Consolidator (617102)
  • Helmut Horten
  • NIH (R01CA197774, GM116616)
  • KWF (NKI-2012-5243)
  • ZonMW Top (91213018)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
Keywords
replication fork reversal, DNA damage tolerance, ZRANB3, DNA translocase, Ubc13, K63-linked polyubiquitin, template switching, chromosome breakage, cancer chemotherapy
MeSH terms
Animals, DNA Damage, DNA Replication, DNA Helicases, DNA, Neoplasm, Humans, Kinetics, Mutation, Neoplasms, Transfection, Replication Origin, Proliferating Cell Nuclear Antigen, Polyubiquitin, RNA Interference, Ubiquitin-Conjugating Enzymes, HCT116 Cells, Mice, Ubiquitination, HEK293 Cells, CRISPR-Cas Systems

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