Evidence map›Paper›PMID 27986806›Full record

ArticleGenetics2017

Repair of Meiotic DNA Breaks and Homolog Pairing in Mouse Meiosis Requires a Minichromosome Maintenance (MCM) Paralog.

Adrian J McNairn, Vera D Rinaldi, John C Schimenti

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 25 citations in OpenAlex.

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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 1 institution in 1 country.

Adrian J McNairnDepartment of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853.
Vera D RinaldiDepartment of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853.
John C SchimentiDepartment of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853 jcs92@cornell.edu.ORCID 0000-0002-7294-1876
Cornell University · US

Funding

Genetics of recombination/genomic instability in miceR01GM045415 · NIGMS · JACKSON LABORATORY · PI SCHIMENTI, JOHN C · 1992 to 2016
$4.9M
GENDER BIAS IN MAMMALIAN DNA REPLICATION DURING DEVELOPMENTR01HD086609 · NICHD · CORNELL UNIVERSITY · PI SCHIMENTI, JOHN C · 2017 to 2020
$1.4M
NICHD NIH HHS R01 HD086609NIGMS NIH HHS R01 GM045415
6 · The paper itself

Abstract

The mammalian Mcm-domain containing 2 (Mcmdc2) gene encodes a protein of unknown function that is homologous to the minichromosome maintenance family of DNA replication licensing and helicase factors. Drosophila melanogaster contains two separate genes, the Mei-MCMs, which appear to have arisen from a single ancestral Mcmdc2 gene. The Mei-MCMs are involved in promoting meiotic crossovers by blocking the anticrossover activity of BLM helicase, a function presumably performed by MSH4 and MSH5 in metazoans. Here, we report that MCMDC2-deficient mice of both sexes are viable but sterile. Males fail to produce spermatozoa, and formation of primordial follicles is disrupted in females. Histology and immunocytological analyses of mutant testes revealed that meiosis is arrested in prophase I, and is characterized by persistent meiotic double-stranded DNA breaks (DSBs), failure of homologous chromosome synapsis and XY body formation, and an absence of crossing over. These phenotypes resembled those of MSH4/5-deficient meiocytes. The data indicate that MCMDC2 is essential for invasion of homologous sequences by RAD51- and DMC1-coated single-stranded DNA filaments, or stabilization of recombination intermediates following strand invasion, both of which are needed to drive stable homolog pairing and DSB repair via recombination in mice.

Indexed as

Chromosome PairingDNA Breaks, Double-StrandedDNA RepairMeiosisAnimalsCell Cycle ProteinsCrossing Over, GeneticFemaleGametogenesisMaleMiceMice, Inbred C57BLMinichromosome Maintenance ProteinsNuclear ProteinsPhosphate-Binding ProteinsRad51 RecombinaseCell Cycle ProteinsDmc1 protein, mouseMCMDC2 protein, mouseMinichromosome Maintenance ProteinsNuclear ProteinsPhosphate-Binding ProteinsRad51 protein, mouseRad51 Recombinasedouble strand break repairmeiosismouserecombinationsynapsis

Identifiers

PMID27986806
PMCPMC5289834
OpenAlexW2566672350

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.