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Mitochondrial disorders of the OXPHOS system

Open access
Fernandez‐Vizarra, Erika, Zeviani, Massimo·2021·FEBS Letters

Abstract

Mitochondrial disorders are among the most frequent inborn errors of metabolism, their primary cause being the dysfunction of the oxidative phosphorylation system (OXPHOS). OXPHOS is composed of the electron transport chain (ETC), formed by four multimeric enzymes and two mobile electron carriers, plus an ATP synthase [also called complex V (cV)]. The ETC performs the redox reactions involved in cellular respiration while generating the proton motive force used by cV to synthesize ATP. OXPHOS biogenesis involves multiple steps, starting from the expression of genes encoded in physically separated genomes, namely the mitochondrial and nuclear DNA, to the coordinated assembly of components and cofactors building each individual complex and eventually the supercomplexes. The genetic cause underlying around half of the diagnosed mitochondrial disease cases is currently known. Many of these cases result from pathogenic variants in genes encoding structural subunits or additional factors directly involved in the assembly of the ETC complexes. Here, we review the historical and most recent findings concerning the clinical phenotypes and the molecular pathological mechanisms underlying this particular group of disorders.

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Metadata

Authors
Fernandez‐Vizarra, E., & Zeviani, M.
Venue
FEBS Letters
Publisher
Wiley
Published
2020-12-18
Volume
595
Issue
8
Pages
1062-1106
ISSN
  • 0014-5793 (ISSN-L)
  • 1873-3468
OpenAlex
W3096158945
Cited by
305
References
491
FWCI
7.05
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Mitochondrial disorders of the OXPHOS system. https://app.cochat.ai/papers/10.1002/1873-3468.13995
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Fernandez‐Vizarra, E., & Zeviani, M. (2021). Mitochondrial disorders of the OXPHOS system. FEBS Letters. https://doi.org/10.1002/1873-3468.13995

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