Cited by 991Genetic Neurodegenerative DiseasesMitochondrial Function and PathologyNeurological diseases and metabolism

Aconitase and mitochondrial iron–sulphur protein deficiency in Friedreich ataxia

Rötig, Agnès, de Lonlay, Pascale, Chretien, Dominique, Foury, Françoise, Koenig, Michel, Sidi, Daniel, Munnich, Arnold, Rustin, Pierre·1997·Nature Genetics

Abstract

Friedreich ataxia (FRDA) is a common autosomal recessive degenerative disease (1/50,000 live births) characterized by a progressive-gait and limb ataxia with lack of tendon reflexes in the legs, dysarthria and pyramidal weakness of the inferior limbs. Hypertrophic cardiomyopathy is observed in most FRDA patients. The gene associated with the disease has been mapped to chromosome 9q13 (ref. 3) and encodes a 210-amino-acid protein, frataxin. FRDA is caused primarily by a GAA repeat expansion within the first intron of the frataxin gene, which accounts for 98% of mutant alleles. The function of the protein is unknown, but an increased iron content has been reported in hearts of FRDA patients and in mitochondria of yeast strains carrying a deleted frataxin gene counterpart (YFH1), suggesting that frataxin plays a major role in regulating mitochondrial iron transport. Here, we report a deficient activity of the iron-sulphur (Fe-S) cluster-containing subunits of mitochondrial respiratory complexes I, II and III in the endomyocardial biopsy of two unrelated FRDA patients. Aconitase, an iron-sulphur protein involved in iron homeostasis, was found to be deficient as well. Moreover, disruption of the YFH1 gene resulted in multiple Fe-S-dependent enzyme deficiencies in yeast. The deficiency of Fe-S-dependent enzyme activities in both FRDA patients and yeast should be related to mitochondrial iron accumulation, especially as Fe-S proteins are remarkably sensitive to free radicals. Mutate…

Integrity signals

Registry

Crossref · 10.1038/ng1097-215

Cites

22 of 22 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • This induction is regulated at the transcriptional level through an antioxidant-responsive element (ARE) in the 5′-region of ferritin genes.

    “This is regulated at the transcriptional level through an antioxidant-responsive element (ARE) (265) (also termed electrophile responsive element) (95) in the 5′-region of ferritin genes (133, 301, 302).”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Rötig, A., de Lonlay, P., Chretien, D., Foury, F., Koenig, M., Sidi, D., Munnich, A., & Rustin, P.
Affiliations
  • Hôpital Necker-Enfants Malades (FR)
  • UCLouvain (BE)
  • Centre National de la Recherche Scientifique (FR)
Venue
Nature Genetics
Published
1997-10
Volume
17
Issue
2
Pages
215-217
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2057404038
Cited by
991
References
22
Citations by year
2026: 10 · 2025: 15 · 2024: 19 · 2023: 17 · 2022: 24 · 2021: 34 · 2020: 24 · 2019: 36 · 2018: 31 · 2017: 24 · 2016: 24 · 2015: 25 · 2014: 39 · 2013: 46 · 2012: 45
FWCI
15.49
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • Digital Access to Libraries (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Genetic Neurodegenerative Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Neuroscience › Neurology › Neurological diseases and metabolism
Keywords
Friedreich's ataxia, frataxin, aconitase, iron-sulfur proteins, mitochondrial iron accumulation, iron homeostasis, respiratory chain complexes, GAA repeat expansion, Yfh1, mitochondrial disease, hypertrophic cardiomyopathy, endomyocardial biopsy
MeSH terms
Frataxin, Aconitate Hydratase, Citric Acid Cycle, Electron Transport, Endocardium, Friedreich Ataxia, Genes, Fungal, Humans, Iron, Iron-Sulfur Proteins, Mitochondria, Models, Biological, Mutation, Myocardium, Saccharomyces cerevisiae, Phosphotransferases (Alcohol Group Acceptor), Oxidative Stress, Iron-Binding Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review