Evidence map›Paper›PMID 17483423›Full record

ArticleGenetics2007

Microhomology-mediated end joining in fission yeast is repressed by pku70 and relies on genes involved in homologous recombination.

Anabelle Decottignies

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
3.9field-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

70 citing papers in PubMed, 110 citations in OpenAlex.

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  11. Whole Genome Sequencing Analysis of Effects of CRISPR/Cas9 inJournal of fungi (Basel, Switzerland) · 2022
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10 more citing papers are in PubMed but not listed here.

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

1 author at 1 institution in 1 country.

Anabelle DecottigniesCellular Genetics, Christian de Duve Institute of Cellular Pathology, Catholic University of Louvain, 1200 Brussels, Belgium. anabelle.decottignies@gece.ucl.ac.be
de Duve Institute · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Two DNA repair pathways are known to mediate DNA double-strand-break (DSB) repair: homologous recombination (HR) and nonhomologous end joining (NHEJ). In addition, a nonconservative backup pathway showing extensive nucleotide loss and relying on microhomologies at repair junctions was identified in NHEJ-deficient cells from a variety of organisms and found to be involved in chromosomal translocations. Here, an extrachromosomal assay was used to characterize this microhomology-mediated end-joining (MMEJ) mechanism in fission yeast. MMEJ was found to require at least five homologous nucleotides and its efficiency was decreased by the presence of nonhomologous nucleotides either within the overlapping sequences or at DSB ends. Exo1 exonuclease and Rad22, a Rad52 homolog, were required for repair, suggesting that MMEJ is related to the single-strand-annealing (SSA) pathway of HR. In addition, MMEJ-dependent repair of DSBs with discontinuous microhomologies was strictly dependent on Pol4, a PolX DNA polymerase. Although not strictly required, Msh2 and Pms1 mismatch repair proteins affected the pattern of MMEJ repair. Strikingly, Pku70 inhibited MMEJ and increased the minimal homology length required for efficient MMEJ. Overall, this study strongly suggests that MMEJ does not define a distinct DSB repair mechanism but reflects "micro-SSA."

Indexed as

DNA RepairDNA-Binding ProteinsDNA Breaks, Double-StrandedExodeoxyribonucleasesRecombination, GeneticSchizosaccharomycesSchizosaccharomyces pombe ProteinsDNA-Binding Proteinsexodeoxyribonuclease IExodeoxyribonucleasesrad52 protein, S pombeSchizosaccharomyces pombe Proteins

Identifiers

PMID17483423
PMCPMC1931558
OpenAlexW2131747287

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.