SCA7 ATXN7

Disease ID
SCA7
Gene ID
ATXN7
Updated
Oct 20, 2025
v2.12.0
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Disease

SCA
Name
Spinocerebellar ataxia type 7
Inheritance
Autosomal dominant
Description
Prevalence
0.999 300,000
Age of Onset(Typical)Years0  654  48
Age of Onset Details
Typical: 4-483 ; Range: 0-902,4 .

Locus

Details
Benign alleles range from 4-275 , with intermediate alleles ranging from premutations (28-33) to reduced penetrance (34-36)2 . Interruptions observed include CAA6 .
Mechanism
GoF
Year
19968
Location in Gene
Coding Exon 1, 2, or 3 (depending on isoform)
Gene Strand

Alleles

Ref. Motif
CAG
Pathogenic (ref.)
CAG
Pathogenic (gene)
AGC
BenignIntermediatePathogenicUnits4  2728  3537  460

gnomAD

Pathogenic Genotype (%)Admixed AmericanAfrican/African AmericanAmishAshkenazi JewishEuropean (non Finnish)FinnishMiddle EasternSouth AsianEast AsianOthers01234567ATXN7

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

References

Direct supporting references for info on this page.

2
Spinocerebellar Ataxia Type 7
Albert R.,La Spada
GeneReviews® · 1993-01-01
genereviews:NBK1256
3
Neurology India · 2010-01-01
pmid:20739808
4
European journal of human genetics : EJHG · 2004-01-01
pmid:14571264
5
Cerebellum (London, England) · 2023-10-31
pmid:37906407
6
Science advances · 2022-03-04
pmid:35245110
7
Cerebellum (London, England) · 2008-01-01
pmid:18418675
8
Genome research · 1996-10-01
pmid:8908515

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)

Cerebellum (London, England) · 2025-09-03
pmid:40900235
Brain communications · 2025-05-17
pmid:40488180
Genetics in medicine : official journal of the American College of Medical Genetics · 2025-05-22
pmid:40417743
Cerebellum (London, England) · 2025-01-16
pmid:39820777
Frontiers in molecular neuroscience · 2024-11-22
pmid:39649105
Journal of the neurological sciences · 2024-11-15
pmid:39571249
Science translational medicine · 2024-11-06
pmid:39504355
Cerebellum (London, England) · 2024-09-25
pmid:39317855
JCI insight · 2024-07-18
pmid:39053472
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Device
CPU
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