Cited by 172Genetic Neurodegenerative DiseasesNeurological diseases and metabolismGenetics and Neurodevelopmental Disorders

Frataxin knockin mouse

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Miranda, Carlos J, Santos, Manuela M, Ohshima, Keiichi, Smith, Julie, Li, Liangtao, Bunting, Michaeline, Cossée, Mireille, Koenig, Michael +3 more·2002·FEBS Letters

Abstract

Friedreich ataxia is the consequence of frataxin deficiency, most often caused by a GAA repeat expansion in intron 1 of the corresponding gene. Frataxin is a mitochondrial protein involved in iron homeostasis. As an attempt to generate a mouse model of the disease, we introduced a (GAA)230 repeat within the mouse frataxin gene by homologous recombination. GAA repeat knockin mice were crossed with frataxin knockout mice to obtain double heterozygous mice expressing 25–36% of wild‐type frataxin levels. These mice were viable and did not develop anomalies of motor coordination, iron metabolism or response to iron loading. Repeats were meiotically and mitotically stable.

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  1. Cosse ¨e, M., Schmitt, M., Campuzano, V., Reutenauer, L., Mou- tou, C., Mandel, J-L. and Koenig, M. (1997) Proc. Natl. Acad. Sci. USA 94, 7452^7457.
  2. Lamarche, J.B., Shapcott, D., Co ª te ¨, M., and Lemieux, B. (1993) in: Handbook of cerebellar diseasesP (Lechtenberg, R., Ed.), pp 453^458, Marcel Dekker, New York.

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Authors
Miranda, C. J., Santos, M. M., Ohshima, K., Smith, J., Li, L., Bunting, M., Cossée, M., Koenig, M., Sequeiros, J., Kaplan, J., & Pandolfo, M.
Affiliations
  • Universidade do Porto (PT)
  • Hôpital Notre-Dame (CA)
  • University of Utah (US)
  • Centre National de la Recherche Scientifique (FR)
  • Erasmus Hospital (BE)
Corresponding author
Pandolfo, Massimo
Venue
FEBS Letters
Publisher
Wiley
Published
2002-01-18
Volume
512
Issue
1-3
Pages
291-297
ISSN
  • 0014-5793 (ISSN-L)
  • 1873-3468
OpenAlex
W1992187326
Cited by
172
References
34
Citations by year
2026: 4 · 2025: 5 · 2024: 5 · 2023: 6 · 2022: 6 · 2021: 3 · 2020: 6 · 2019: 10 · 2018: 5 · 2017: 6 · 2016: 5 · 2015: 7 · 2014: 12 · 2013: 13 · 2012: 8
FWCI
3.49
Type
journal article
Language
en
Open access
Locations
  • FEBS Letters (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • Dépôt institutionnel de l'Université libre de Bruxelles (Université Libre de Bruxelles) (submittedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (DK 52380, T32 DK07115, R01DK052380, T32DK007115)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Genetic Neurodegenerative Diseases
  • Life Sciences › Neuroscience › Neurology › Neurological diseases and metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
Friedreich's ataxia, frataxin, GAA repeat expansion, mitochondrial iron homeostasis, homologous recombination, motor coordination, iron loading
MeSH terms
Frataxin, Alleles, Animals, Friedreich Ataxia, Homeostasis, Iron, Mice, Mutant Strains, Mitochondria, Phosphotransferases (Alcohol Group Acceptor), Trinucleotide Repeat Expansion, Iron-Binding Proteins, Mice

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