Evidence map›Paper›PMID 26554610›Full record

ArticleNature communications2015

Complementation between polymerase- and exonuclease-deficient mitochondrial DNA polymerase mutants in genomically engineered flies.

Ana Bratic, Timo E S Kauppila, Bertil Macao, Sebastian Grönke, Triinu Siibak, James B Stewart, Francesca Baggio, Jacqueline Dols, Linda Partridge, Maria Falkenberg and 2 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
2.4field-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

45 citing papers in PubMed, 59 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. MtDNA deletions and aging.Frontiers in aging · 2024
    Review
  13. Structural basis for DNA proofreading.Nature communications · 2023
    Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Review
  19. Review
  20. Mitigation of age-dependent accumulation of defective mitochondrial genomes.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
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

12 authors at 3 institutions in 2 countries.

Ana BraticDepartment of Mitochondrial Biology, Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Strasse 9b, Cologne D-50931, Germany.
Timo E S KauppilaDepartment of Mitochondrial Biology, Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Strasse 9b, Cologne D-50931, Germany.
Bertil MacaoDepartment of Medical Biochemistry and Cell Biology, Institute of Biomedicine, University of Gothenburg, Medicinaregatan 9A, Gothenburg SE-40530, Sweden.
Sebastian GrönkeDepartment of Biological Mechanisms of Ageing, Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Strasse 9b, Cologne D-50931, Germany.
Triinu SiibakDepartment of Medical Biochemistry and Cell Biology, Institute of Biomedicine, University of Gothenburg, Medicinaregatan 9A, Gothenburg SE-40530, Sweden.
James B StewartDepartment of Mitochondrial Biology, Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Strasse 9b, Cologne D-50931, Germany.ORCID http://orcid.org/0000-0002-2902-4968
Francesca BaggioDepartment of Mitochondrial Biology, Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Strasse 9b, Cologne D-50931, Germany.
Jacqueline DolsDepartment of Biological Mechanisms of Ageing, Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Strasse 9b, Cologne D-50931, Germany.
Linda PartridgeDepartment of Biological Mechanisms of Ageing, Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Strasse 9b, Cologne D-50931, Germany.
Maria FalkenbergDepartment of Medical Biochemistry and Cell Biology, Institute of Biomedicine, University of Gothenburg, Medicinaregatan 9A, Gothenburg SE-40530, Sweden.
Anna WredenbergDepartment of Laboratory Medicine, Karolinska Institutet, Stockholm SE-17177, Sweden.
Nils-Göran LarssonDepartment of Mitochondrial Biology, Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Strasse 9b, Cologne D-50931, Germany.
Max Planck Institute for Biology of Ageing · DEUniversity of Gothenburg · SEKarolinska Institutet · SE

Funding

Wellcome Trust 098565
6 · The paper itself

Abstract

Replication errors are the main cause of mitochondrial DNA (mtDNA) mutations and a compelling approach to decrease mutation levels would therefore be to increase the fidelity of the catalytic subunit (POLγA) of the mtDNA polymerase. Here we genomically engineer the tamas locus, encoding fly POLγA, and introduce alleles expressing exonuclease- (exo(-)) and polymerase-deficient (pol(-)) POLγA versions. The exo(-) mutant leads to accumulation of point mutations and linear deletions of mtDNA, whereas pol(-) mutants cause mtDNA depletion. The mutant tamas alleles are developmentally lethal but can complement each other in trans resulting in viable flies with clonally expanded mtDNA mutations. Reconstitution of human mtDNA replication in vitro confirms that replication is a highly dynamic process where POLγA goes on and off the template to allow complementation during proofreading and elongation. The created fly models are valuable tools to study germ line transmission of mtDNA and the pathophysiology of POLγA mutation disease.

Indexed as

Genetic EngineeringAnimalsDNA-Directed DNA PolymeraseDNA, MitochondrialDNA Polymerase gammaDrosophilaExodeoxyribonucleasesMutagenesis, Site-DirectedMutationProtein SubunitsDNA-Directed DNA PolymeraseDNA, MitochondrialDNA Polymerase gammaExodeoxyribonucleasesPOLG protein, humanProtein Subunits

Identifiers

PMID26554610
PMCPMC4773887
OpenAlexW2296339550

What OpenQuestion holds

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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.