Evidence map›Paper›PMID 33644718›Full record

ArticleiScience2021

Protease OMA1 modulates mitochondrial bioenergetics and ultrastructure through dynamic association with MICOS complex.

Martonio Ponte Viana, Roman M Levytskyy, Ruchika Anand, Andreas S Reichert, Oleh Khalimonchuk

Open access · goldAbstract read
In one paragraph

Article in iScience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

29 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
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  8. Molecular machineries shaping the mitochondrial inner membrane.Nature reviews. Molecular cell biology · 2025
    Review
  9. HThe Journal of biological chemistry · 2025
    Article
  10. Mitochondrial dysfunction in Alzheimer's disease: Guiding the path to targeted therapies.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Review
  11. Article
  12. Review
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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

5 authors at 2 institutions in 2 countries.

Martonio Ponte VianaDepartment of Biochemistry, University of Nebraska, Lincoln, NE 68588, USA.
Roman M LevytskyyDepartment of Biochemistry, University of Nebraska, Lincoln, NE 68588, USA.
Ruchika AnandInstitute of Biochemistry and Molecular Biology I, Medical Faculty, Heinrich Heine University of Dusseldorf, Dusseldorf 40225, Germany.
Andreas S ReichertInstitute of Biochemistry and Molecular Biology I, Medical Faculty, Heinrich Heine University of Dusseldorf, Dusseldorf 40225, Germany.
Oleh KhalimonchukDepartment of Biochemistry, University of Nebraska, Lincoln, NE 68588, USA.
University of Nebraska–Lincoln · USHeinrich Heine University Düsseldorf · DE

Funding

Redox Biology CenterP30GM103335 · NIGMS · UNIVERSITY OF NEBRASKA LINCOLN · PI BECKER, DONALD F · 2012 to 2016
$4.3M
Mitochondrial Fidelity and HomeostasisR35GM131701 · NIGMS · UNIVERSITY OF NEBRASKA LINCOLN · PI Oleh Khalimonchuk · 2019 to 2026
$2.4M
A Conserved Metalloprotease Required for Mitochondrial Maintenance and ProtectionR01GM108975 · NIGMS · UNIVERSITY OF NEBRASKA LINCOLN · PI KHALIMONCHUK, OLEH · 2014 to 2018
$1.4M
NIGMS NIH HHS P30 GM103335NIGMS NIH HHS R01 GM108975NIGMS NIH HHS R35 GM131701
6 · The paper itself

Abstract

Remodeling of mitochondrial ultrastructure is a process that is critical for organelle physiology and apoptosis. Although the key players in this process-mitochondrial contact site and cristae junction organizing system (MICOS) and Optic Atrophy 1 (OPA1)-have been characterized, the mechanisms behind its regulation remain incompletely defined. Here, we found that in addition to its role in mitochondrial division, metallopeptidase OMA1 is required for the maintenance of intermembrane connectivity through dynamic association with MICOS. This association is independent of OPA1, mediated via the MICOS subunit MIC60, and is important for stability of MICOS and the intermembrane contacts. The OMA1-MICOS relay is required for optimal bioenergetic output and apoptosis. Loss of OMA1 affects these activities; remarkably it can be alleviated by MICOS-emulating intermembrane bridge. Thus, OMA1-dependent ultrastructure support is required for mitochondrial architecture and bioenergetics under basal and stress conditions, suggesting a previously unrecognized role for OMA1 in mitochondrial physiology.

Indexed as

Cell BiologyMolecular BiologyOrganizational Aspects of Cell Biology

Identifiers

PMID33644718
PMCPMC7892988
OpenAlexW3048737079

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.