Publication: Replication Fork Slowing and Reversal upon DNA Damage Require PCNA Polyubiquitination and ZRANB3 DNA Translocase Activity
Replication Fork Slowing and Reversal upon DNA Damage Require PCNA Polyubiquitination and ZRANB3 DNA Translocase Activity
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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. (2017). Replication Fork Slowing and Reversal upon DNA Damage Require PCNA Polyubiquitination and ZRANB3 DNA Translocase Activity. Molecular Cell, 67(5), 882-890.e5. https://doi.org/10.1016/j.molcel.2017.08.010
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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-induc
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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. (2017). Replication Fork Slowing and Reversal upon DNA Damage Require PCNA Polyubiquitination and ZRANB3 DNA Translocase Activity. Molecular Cell, 67(5), 882-890.e5. https://doi.org/10.1016/j.molcel.2017.08.010