Evidence map›Paper›PMID 25166505›Full record

ArticlePLoS genetics2014

Canonical non-homologous end joining in mitosis induces genome instability and is suppressed by M-phase-specific phosphorylation of XRCC4.

Masahiro Terasawa, Akira Shinohara, Miki Shinohara

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
3.8field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

54 citing papers in PubMed, 91 citations in OpenAlex.

  1. Review
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  7. THE GID COMPLEX REGULATES DNA END PROCESSING DURING DNA DOUBLE-STRAND BREAK REPAIR BY NONHOMOLOGOUS END JOINING.Transactions of the American Clinical and Climatological Association · 2025
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  14. DNA repair is efficient in irradiated M phase zygotes.The Journal of reproduction and development · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Masahiro TerasawaInstitute for Protein Research, Osaka University, Osaka, Japan.
Akira ShinoharaInstitute for Protein Research, Osaka University, Osaka, Japan.
Miki ShinoharaInstitute for Protein Research, Osaka University, Osaka, Japan.
Protein Research Foundation · JPOsaka University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

DNA double-strand breaks (DSBs) can be repaired by one of two major pathways-non-homologous end-joining (NHEJ) and homologous recombination (HR)-depending on whether cells are in G1 or S/G2 phase, respectively. However, the mechanisms of DSB repair during M phase remain largely unclear. In this study, we demonstrate that transient treatment of M-phase cells with the chemotherapeutic topoisomerase inhibitor etoposide induced DSBs that were often associated with anaphase bridge formation and genome instability such as dicentric chromosomes. Although most of the DSBs were carried over into the next G1 phase, some were repaired during M phase. Both NHEJ and HR, in particular NHEJ, promoted anaphase-bridge formation, suggesting that these repair pathways can induce genome instability during M phase. On the other hand, C-terminal-binding protein interacting protein (CtIP) suppressed anaphase bridge formation, implying that CtIP function prevents genome instability during mitosis. We also observed M-phase-specific phosphorylation of XRCC4, a regulatory subunit of the ligase IV complex specialized for NHEJ. This phosphorylation required cyclin-dependent kinase (CDK) activity as well as polo-like kinase 1 (Plk1). A phosphorylation-defective XRCC4 mutant showed more efficient M-phase DSB repair accompanied with an increase in anaphase bridge formation. These results suggest that phosphorylation of XRCC4 suppresses DSB repair by modulating ligase IV function to prevent genome instability during M phase. Taken together, our results indicate that XRCC4 is required not only for the promotion of NHEJ during interphase but also for its M-phase-specific suppression of DSB repair.

Indexed as

DNA Breaks, Double-StrandedGenomic InstabilityDNA-Binding ProteinsDNA End-Joining RepairDNA RepairG1 PhaseG2 PhaseHeLa CellsHomologous RecombinationHumansMitosisM Phase Cell Cycle CheckpointsPhosphorylationDNA-Binding ProteinsXRCC4 protein, human

Identifiers

PMID25166505
PMCPMC4148217
OpenAlexW1981834531

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LicenceCC BY
Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.