SCA3 ATXN3

Disease ID
SCA3, MJD
Gene ID
ATXN3
Updated
Aug 12, 2025
v2.9.0

Disease

SCA
Name
Spinocerebellar ataxia type 3/Machado-Joseph disease
Inheritance
Autosomal dominant
Description
Prevalence
2.1 100,000
Age of Onset(Typical)Years3  7310  49
Age of Onset Details
Typical: 10-495 ; 36 - 735,7 .

Locus

Details
Mechanism
GoF
Year
199413
Location in Gene
Exon 10
Gene Strand

Alleles

Ref. Motif
CTG
Pathogenic (ref.)
CTG
Pathogenic (gene)
AGC
BenignIntermediatePathogenicUnits11  4445  5960  87

gnomAD

Pathogenic Genotype (%)Admixed AmericanAfrican/African AmericanAmishAshkenazi JewishEuropean (non Finnish)FinnishMiddle EasternSouth AsianEast AsianOthers01234567ATXN3

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:0007182
3
American journal of human genetics · 2017-11-02
pmid:29100084
4
Spinocerebellar Ataxia
StatPearls · 2025-01-01
genereviews:NBK557816
5
Spinocerebellar Ataxia Type 3
GeneReviews® · 1993-01-01
genereviews:NBK1196
6
Genes · 2025-01-28
pmid:40004498
7
European journal of neurology · 2018-12-07
pmid:30414314
8
Cerebellum (London, England) · 2023-10-31
pmid:37906407
9
Science advances · 2022-03-04
pmid:35245110
10
European journal of neurology · 2025-01-01
pmid:39731318
11
Movement disorders : official journal of the Movement Disorder Society · 2024-12-19
pmid:39699045
12
Japanese journal of radiology · 2022-09-28
pmid:36169768
13
Nature genetics · 1994-11-01
pmid:7874163

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)

2
Acta neuropathologica communications · 2025-07-19
pmid:40684213
Neurobiology of disease · 2025-07-28
pmid:40738252
Brain : a journal of neurology · 2025-07-22
pmid:40692435
Frontiers in neurology · 2025-06-25
pmid:40635703
Frontiers in neurology · 2025-05-23
pmid:40488202
Brain communications · 2025-05-17
pmid:40488180
Molecular neurobiology · 2025-05-31
pmid:40450087
Scientific reports · 2025-04-09
pmid:40204795
European journal of neurology · 2025-04-01
pmid:40178277
Contact Us
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