FRDA FXN

Disease ID
FRDA
Gene ID
FXN
Updated
Jun 4, 2025
v2.4.3

Disease

Name
Friedreich ataxia
Inheritance
Autosomal recessive
Description
Any Friedreich ataxia in which the cause of the disease is a mutation in the FXN gene1 .
Prevalence
1 50,000
Age of Onset(Typical)Years2  8010  15
Age of Onset Details
Typical: 10-15; Range: 2-804 .

Locus

Details
Mechanism
LoF
Loss of function via transcriptional silencing7,8 .
Year
19969
Location in Gene
Intron 1
Gene Strand

Alleles

Ref. Motif
GAA
Pathogenic (ref.)
GAA
Pathogenic (gene)
AAG
BenignIntermediatePathogenicUnits5  3334  5556  1,700

gnomAD

Pathogenic Genotype (%)Admixed AmericanAfrican/African AmericanAmishAshkenazi JewishEuropean (non Finnish)FinnishMiddle EasternSouth AsianEast AsianOthers01234567FXN

Pathogenic Genotype (%): % of individuals predicted to be affected based on their genotype

References

Direct supporting references for info on this page.

1
Ontology Lookup Service (OLS)
mondo:0100340
3
American journal of human genetics · 2017-11-02
pmid:29100084
4
Friedreich Ataxia
GeneReviews® · 1993-01-01
genereviews:NBK1281
5
Movement disorders : official journal of the Movement Disorder Society · 2001-11-01
pmid:11748752
6
The New England journal of medicine · 1996-10-17
pmid:8815938
7
Nature reviews. Genetics · 2005-10-01
pmid:16205714
8
Japanese journal of radiology · 2022-09-28
pmid:36169768
9
Science (New York, N.Y.) · 1996-03-08
pmid:8596916

Additional Literature

Additional literature related to this locus.

Raw PubMed search results
(All PubMed results returned by searching for this gene, tandem repeats, and disease, in medline format)

Nature genetics · 2025-05-26
pmid:40419681
The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025-05-22
pmid:40404357
Epigenetics & chromatin · 2025-04-28
pmid:40296143
International journal of molecular sciences · 2025-03-18
pmid:40141365
Journal of neurology · 2025-01-15
pmid:39812846
Massimo,Pandolfo
Neurology. Genetics · 2025-01-13
pmid:39810753
Neurology. Genetics · 2024-11-20
pmid:39574782
Journal of the neurological sciences · 2024-11-15
pmid:39571249
International journal of molecular sciences · 2024-10-29
pmid:39519164