Evidence map›Paper›PMID 32969598›Full record

ArticleEMBO molecular medicine2020

Bi-allelic pathogenic variants in NDUFC2 cause early-onset Leigh syndrome and stalled biogenesis of complex I.

Ahmad Alahmad, Alessia Nasca, Juliana Heidler, Kyle Thompson, Monika Oláhová, Andrea Legati, Eleonora Lamantea, Jana Meisterknecht, Manuela Spagnolo, Langping He and 9 more

Open access · goldAbstract read
In one paragraph

Article in EMBO molecular medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

19 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Mitochondrial complex I deficiency-associated diseases and models.Cellular and molecular life sciences : CMLS · 2026
    Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Leigh Syndrome due toMolecular syndromology · 2024
    Article
  10. Article
  11. Review
  12. Tackling Dysfunction of Mitochondrial Bioenergetics in the Brain.International journal of molecular sciences · 2021
    Review
  13. Complexome Profiling: Assembly and Remodeling of Protein Complexes.International journal of molecular sciences · 2021
    Review
  14. Review
  15. Mitochondrial Structure and Bioenergetics in Normal and Disease Conditions.International journal of molecular sciences · 2021
    Review
  16. Review
  17. Review
  18. Article
  19. 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

19 authors at 7 institutions in 5 countries.

Ahmad AlahmadWellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK.
Alessia NascaUnit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.ORCID 0000-0002-0640-9929
Juliana HeidlerSFB815 Core Unit, Functional Proteomics, Medical School, Goethe-Universität, Frankfurt am Main, Germany.
Kyle ThompsonWellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK.
Monika OláhováWellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK.
Andrea LegatiUnit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
Eleonora LamanteaUnit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
Jana MeisterknechtSFB815 Core Unit, Functional Proteomics, Medical School, Goethe-Universität, Frankfurt am Main, Germany.
Manuela SpagnoloUnit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
Langping HeWellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK.
Seham AlameerPediatric Department, Ministry of National Guard Health Affairs, Jeddah, Saudi Arabia.
Fahad HakamiSection of Molecular Medicine, King Abdulaziz Medical City-WR, King Saud bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.
Abeer AlmehdarDepartment of Medical Imaging, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City-WR, National Guard Health Affairs, Jeddah, Saudi Arabia.
Anna ArdissoneChild Neurology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.
Charlotte L AlstonWellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK.
Robert McFarlandWellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK.
Ilka Wittig *SFB815 Core Unit, Functional Proteomics, Medical School, Goethe-Universität, Frankfurt am Main, Germany.
Daniele Ghezzi *Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.ORCID 0000-0002-9358-1566
Robert W Taylor *Wellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK.ORCID 0000-0002-7768-8873
Fondazione IRCCS Istituto Neurologico Carlo Besta · ITRoyal Victoria Infirmary · GBGoethe University Frankfurt · DEKing Saud bin Abdulaziz University for Health Sciences · SAWellcome Centre for Mitochondrial Research · GBKuwait Institute for Medical Specialization · KWUniversity of Milan · IT

Funding

Biotechnology and Biological Sciences Research CouncilDeutsche Forschungsgemeinschaft (DFG) EXC2026Deutsche Forschungsgemeinschaft (DFG) SFB 815/Z1Kuwait Civil Services CommissionLily FoundationNational Institute for Health Research (NIHR) DF-2018-11-ST2-021Newcastle University | Wellcome Trust Centre for Mitochondrial Research (WCMR) 203105/Z/16/ZNHS Highly Specialised Mitochondrial ServicePierfranco and Luisa Mariani FoundationUKRI | Medical Research Council (MRC)Wellcome Trust
6 · The paper itself

Abstract

Leigh syndrome is a progressive neurodegenerative disorder, most commonly observed in paediatric mitochondrial disease, and is often associated with pathogenic variants in complex I structural subunits or assembly factors resulting in isolated respiratory chain complex I deficiency. Clinical heterogeneity has been reported, but key diagnostic findings are developmental regression, elevated lactate and characteristic neuroimaging abnormalities. Here, we describe three affected children from two unrelated families who presented with Leigh syndrome due to homozygous variants (c.346_*7del and c.173A>T p.His58Leu) in NDUFC2, encoding a complex I subunit. Biochemical and functional investigation of subjects' fibroblasts confirmed a severe defect in complex I activity, subunit expression and assembly. Lentiviral transduction of subjects' fibroblasts with wild-type NDUFC2 cDNA increased complex I assembly supporting the association of the identified NDUFC2 variants with mitochondrial pathology. Complexome profiling confirmed a loss of NDUFC2 and defective complex I assembly, revealing aberrant assembly intermediates suggestive of stalled biogenesis of the complex I holoenzyme and indicating a crucial role for NDUFC2 in the assembly of the membrane arm of complex I, particularly the ND2 module.

Indexed as

Leigh DiseaseMitochondrial DiseasesAllelesChildElectron Transport Complex IHumansMitochondrial ProteinsMutationElectron Transport Complex IMitochondrial ProteinsNDUFC2 protein, humancomplex ILeigh syndromemitochondrial diseaseNDUFC2OXPHOS

Identifiers

PMID32969598
PMCPMC7645371
OpenAlexW3089210495

What OpenQuestion holds

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Registered trials

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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.