SCA12 PPP2R2B

Disease ID
SCA12
Gene ID
PPP2R2B
Updated
Oct 7, 2025
v2.11.0
Suggest Edit

Disease

SCA
Name
Spinocerebellar ataxia type 12
Inheritance
Autosomal dominant
Description
Prevalence
Frequent in India; rare in other populations2 .
Age of Onset(Typical)Years8  6226  50
Age of Onset Details
Typical: 26-50; Range: 8-563 .

Locus

Details
Benign range is 6-32 repeats, intermediate range 40-49, and pathogenic range is 51-784 ; intermediate alleles are associated with reduced penetrance5 .
Mechanism
GoF
Year
19997
Location in Gene
5' UTR
Gene Strand

Alleles

Ref. Motif
GCT
Pathogenic (ref.)
GCT
Pathogenic (gene)
AGC
BenignIntermediatePathogenicUnits6  3240  4951  78

gnomAD

Pathogenic Genotype (%)Admixed AmericanAfrican/African AmericanAmishAshkenazi JewishEuropean (non Finnish)FinnishMiddle EasternSouth AsianEast AsianOthers01234567PPP2R2B

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:0011439
2
Parkinsonism & related disorders · 2021-10-22
pmid:34711523
4
Cerebellum (London, England) · 2023-10-31
pmid:37906407
5
Annals of neurology · 2001-01-01
pmid:11198281
6
Nature reviews. Genetics · 2024-03-11
pmid:38467784
7
Nature genetics · 1999-12-01
pmid:10581021

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)

Brain communications · 2025-05-17
pmid:40488180
Human molecular genetics · 2025-01-29
pmid:39565297
Frontiers in neurology · 2024-10-14
pmid:39469072
Brain communications · 2024-06-29
pmid:38961870
Movement disorders : official journal of the Movement Disorder Society · 2024-05-26
pmid:38798069
iScience · 2024-04-18
pmid:38711441
Molecular biology reports · 2024-01-16
pmid:38227102
Neurology. Genetics · 2023-02-02
pmid:38058854
Tremor and other hyperkinetic movements (New York, N.Y.) · 2022-04-21
pmid:35531119
Contact Us
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Details
Page
/loci/sca12_ppp2r2b/
Browser
Chrome Headless 141.0.0.0
Engine
Blink 141.0.0.0
OS
Linux
Device
CPU
amd64
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