Evidence map›Paper›PMID 21677273›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2011

Mre11 is expressed in mammalian mitochondria where it binds to mitochondrial DNA.

Natalia I Dmitrieva, Daniela Malide, Maurice B Burg

Abstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

23 citing papers in PubMed, 44 citations in OpenAlex.

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  13. Mitochondrial DNA: Epigenetics and environment.Environmental and molecular mutagenesis · 2019
    Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Protecting the mitochondrial powerhouse.Trends in cell biology · 2015
    Review
  20. Review
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 2 countries.

Natalia I DmitrievaLaboratory of Kidney and Electrolyte Metabolism,National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA. dmitrien@nhlbi.nih.gov
Daniela Malide
Maurice B Burg
Metabolism and Renal Physiology · FRNational Institutes of Health · US

Funding

Light Microscopy CoreZICHL006019 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI COMBS, CHRISTIAN · 2009 to 2025
$29.3M
Response Of Renal Cells To Osmotic StressZIAHL001283 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI BURG, MAURICE BENJAM · 2009 to 2010
$3.5M
Hyperosmolality-induced damage to cellsZIAHL006131 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI BURG, MAURICE BENJAM · 2011 to 2014
$1.3M
Intramural NIH HHS
6 · The paper itself

Abstract

Mre11 is a critical participant in upkeep of nuclear DNA, its repair, replication, meiosis, and maintenance of telomeres. The upkeep of mitochondrial DNA (mtDNA) is less well characterized, and whether Mre11 participates has been unknown. We previously found that high NaCl causes some of the Mre11 to leave the nucleus, but we did not then attempt to localize it within the cytoplasm. In the present studies, we find Mre11 in mitochondria isolated from primary renal cells and show that the amount of Mre11 in mitochondria increases with elevation of extracellular NaCl. We confirm the presence of Mre11 in the mitochondria of cells by confocal microscopy and show that some of the Mre11 colocalizes with mtDNA. Furthermore, crosslinking of Mre11 to DNA followed by Mre11 immunoprecipitation directly demonstrates that some Mre11 binds to mtDNA. Abundant Mre11 is also present in tissue sections from normal mouse kidneys, colocalized with mitochondria of proximal tubule and thick ascending limb cells. To explore whether distribution of Mre11 changes with cell differentiation, we used an experimental model of tubule formation by culturing primary kidney cells in Matrigel matrix. In nondifferentiated cells, Mre11 is mostly in the nucleus, but it becomes mostly cytoplasmic upon cell differentiation. We conclude that Mre11 is present in mitochondria where it binds to mtDNA and that the amount in mitochondria varies depending on cellular stress and differentiation. Our results suggest a role for Mre11 in the maintenance of genome integrity in mitochondria in addition to its previously known role in maintenance of nuclear DNA.

Indexed as

AnimalsBinding SitesCell DifferentiationCell NucleusCells, CulturedCytoplasmDNA-Binding ProteinsDNA, MitochondrialDNA Repair EnzymesFluorescent Antibody TechniqueImmunoprecipitationKidneyMiceMicroscopy, ConfocalMitochondriaMRE11 Homologue ProteinDNA-Binding ProteinsDNA, MitochondrialDNA Repair EnzymesMre11a protein, mouseMRE11 Homologue ProteinSodium Chloride

Identifiers

PMID21677273
PMCPMC3174761
OpenAlexW2077577291

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.