SCA3 ATXN3

Disease ID
SCA3, MJD
Gene ID
ATXN3
Updated
Nov 6, 2025
v2.13.0
Suggest Edit

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
Coding 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
2
Acta neuropathologica communications · 2025-07-19
pmid:40684213
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)

Parkinsonism & related disorders · 2025-10-12
pmid:41082794
Brain : a journal of neurology · 2025-10-08
pmid:41058593
International journal of molecular sciences · 2025-09-20
pmid:41009775
Frontiers in neurology · 2025-09-10
pmid:41001200
Cerebellum (London, England) · 2025-09-04
pmid:40906330
Cerebellum (London, England) · 2025-09-03
pmid:40900235
BMC neurology · 2025-09-01
pmid:40890629
m
Aggregate (Hoboken, N.J.) · 2025-05-20
pmid:40880681
Medicine · 2025-08-08
pmid:40797466
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Page
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