SCA2 ATXN2
SupportedSom. Inst.Anticip.Pat. Exp.Mat. Exp.Len. → OnsetLen. → Pen.Len. → Pheno.Len. → Sev.Mot. → Inst.Mot. → Pheno.Prop. Mod.
Disease ID
SCA2
Gene ID
ATXN2
Updated
Nov 6, 2025
v2.13.0
v2.13.0
Clinical Links
Bioinformatical Links
Disease
Name
Spinocerebellar ataxia type 2
Description
Locus
Details
Mechanism
GoF/LoF
Alleles
Ref. Motif
CTG
Pathogenic (ref.)
CTG
Pathogenic (gene)
AGC
gnomAD
Pathogenic Genotype (%): % of individuals predicted to be affected based on their genotype
References
Direct supporting references for info on this page.
2
Profiling of Short-Tandem-Repeat Disease Alleles in 12,632 Human Whole Genomes.
Haibao,Tang, Ewen F,Kirkness, Christoph,Lippert, William H,Biggs, Martin,Fabani, Ernesto,Guzman, Smriti,Ramakrishnan, Victor,Lavrenko, Boyko,Kakaradov, Claire,Hou, Barry,Hicks, David,Heckerman, Franz J,Och, C Thomas,Caskey, J Craig,Venter, Amalio,Telenti
American journal of human genetics · 2017-11-02
pmid:291000845
The Frequency of Intermediate Alleles in Patients with Cerebellar Phenotypes.
Elena,Capacci, Silvia,Bagnoli, Giulia,Giacomucci, Costanza Maria,Rapillo, Alessandra,Govoni, Valentina,Bessi, Cristina,Polito, Irene,Giotti, Alice,Brogi, Elisabetta,Pelo, Sandro,Sorbi, Benedetta,Nacmias, Camilla,Ferrari
Cerebellum (London, England) · 2023-10-31
pmid:379064076
Childhood-onset ataxia: testing for large CAG-repeats in SCA2 and SCA7.
Rong,Mao, Arthur S,Aylsworth, Nicholas,Potter, William G,Wilson, Galen,Breningstall, Myra J,Wick, Dusica,Babovic-Vuksanovic, Martha,Nance, Marc C,Patterson, Christopher M,Gomez, Karen,Snow
American journal of medical genetics · 2002-07-15
pmid:121162077
Homozygous 31 trinucleotide repeats in the SCA2 allele are pathogenic for cerebellar ataxia.
Maya,Tojima, Gaku,Murakami, Rie,Hikawa, Hodaka,Yamakado, Hirofumi,Yamashita, Ryosuke,Takahashi, Masaru,Matsui
Neurology. Genetics · 2018-10-16
pmid:305335298
Amyotrophic lateral sclerosis risk for spinocerebellar ataxia type 2 ATXN2 CAG repeat alleles: a meta-analysis.
Annalese G,Neuenschwander, Khanh K,Thai, Karla P,Figueroa, Stefan M,Pulst
JAMA neurology · 2014-12-01
pmid:252858129
An observational study of pleiotropy and penetrance of amyotrophic lateral sclerosis associated with CAG-repeat expansion of ATXN2.
Koen C,Demaegd, Aoife,Kernan, Johnathan,Cooper-Knock, Joke J F A,van Vugt, Calum,Harvey, Tobias,Moll, David,O'Brien, Sarah,Gornall, Luke,Drury, Sali M K,Farhan, Patrick A,Dion, Guy A,Rouleau, Andrea,Western, Paul J,Parsons, Benjamin,Mclean, Michael,Benatar, Leonard H,van den Berg, Philip,Van Damme, Jan,Willem Dankbaar, Jeroen,Hendrikse, Wouter,Koole, Charlotte,de Bie, Esther,Hobson, Jan H,Veldink, Bart,van de Warrenburg, R Jeroen,Pasterkamp, Wouter,van Rheenen, Janine,Kirby, Pamela J,Shaw, Michael A,van Es
European journal of human genetics : EJHG · 2025-02-16
pmid:3995687410
Gijs H P,Tazelaar, Steven,Boeynaems, Mathias,De Decker, Joke J F A,van Vugt, Lindy,Kool, H Stephan,Goedee, Russell L,McLaughlin, William,Sproviero, Alfredo,Iacoangeli, Matthieu,Moisse, Maarten,Jacquemyn, Dirk,Daelemans, Annelot M,Dekker, Rick A,van der Spek, Henk-Jan,Westeneng, Kevin P,Kenna, Abdelilah,Assialioui, Nica,Da Silva, Mónica,Povedano, Jesus S Mora,Pardina, Orla,Hardiman, François,Salachas, Stéphanie,Millecamps, Patrick,Vourc'h, Philippe,Corcia, Philippe,Couratier, Karen E,Morrison, Pamela J,Shaw, Christopher E,Shaw, R Jeroen,Pasterkamp, John E,Landers, Ludo,Van Den Bosch, Wim,Robberecht, Ammar,Al-Chalabi, Leonard H,van den Berg, Philip,Van Damme, Jan H,Veldink, Michael A,van Es
Brain communications · 2020-05-19
pmid:3295432111
Identification of the spinocerebellar ataxia type 2 gene using a direct identification of repeat expansion and cloning technique, DIRECT.
K,Sanpei, H,Takano, S,Igarashi, T,Sato, M,Oyake, H,Sasaki, A,Wakisaka, K,Tashiro, Y,Ishida, T,Ikeuchi, R,Koide, M,Saito, A,Sato, T,Tanaka, S,Hanyu, Y,Takiyama, M,Nishizawa, N,Shimizu, Y,Nomura, M,Segawa, K,Iwabuchi, I,Eguchi, H,Tanaka, H,Takahashi, S,Tsuji
Nature genetics · 1996-11-01
pmid:8896556Additional 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)
Genetic and Clinical Insights into ALS/FTD: Profiling a Rare Cohort to Explore Spectrum Heterogeneity.
Ana,Marjanovic, Elka,Stefanova, Vanja,Viric, Aleksa,Palibrk, Gorana,Mandić Stojmenović, Tanja,Stojković, Lenka,Stojadinovic, Ivana,Basta, Ivana,Novakovic, Zorica,Stević, Milena,Jankovic
Journal of personalized medicine · 2025-09-28
pmid:41149812The genetic landscape of spinocerebellar ataxias in Taiwan: Insights from 876 genetically confirmed cases.
Shih-Chun,Lan, Cheng-Tsung,Hsiao, Kang-Yang,Jih, Yi-Chu,Liao, Yi-Chung,Lee
Parkinsonism & related disorders · 2025-10-12
pmid:41082794Elevated Interleukin-8 in Spinocerebellar Ataxia Type 2: A Distinct Peripheral Immune Signature Unrelated To Disease Severity.
Yaimeé,Vázquez-Mojena, Roberto,Rodríguez-Labrada, Yanetsy,Córdova-Rodríguez, Yennis,Domínguez-Barrios, Diana Iris,Zamora-Loyarte, Mario E,Fernández-Herrera, Nancy,Pavón-Fuentes, Maria,de Los Angeles Robinson-Agramonte, Luis,Velázquez-Pérez
Cerebellum (London, England) · 2025-10-13
pmid:41077586Cognitive Deficits in Spinocerebellar Ataxia Type 2: A Comparative Analysis of Pre-ataxic and Ataxic Stages.
Renata Barreto,Tenorio, Andressa Aline,Vieira, Walter Oleschko,Arruda, Gustavo Leite,Franklin, Gustavo,da Cunha Ribas, João Filipe,de Oliveira, Salmo,Raskin, Karla Pattie,Figueroa, Stefan M,Pulst, Hélio Afonso Ghizoni,Teive, Carlos Henrique Ferreira,Camargo
Cerebellum (London, England) · 2025-10-10
pmid:41071260Repeat Variants, Biomarkers, and Molecular Signatures in Parkinson's Disease:
Jose Miguel,Laffita-Mesa, Martin,Paucar, Per,Svenningsson
International journal of molecular sciences · 2025-09-20
pmid:41009775Spinocerebellar ataxias masquerading as movement disorders: clinical and genetic characterization.
Shanshan,Wei, Zhe,Zhao, Nan,Li, Xuan,Guo, Jiannan,Chen, Jing,Hu
Frontiers in neurology · 2025-09-10
pmid:41001200PolyQ-Expansion of Ataxin-2 Disrupts Microtubule Stability and Impairs Axon Outgrowth.
Sun K,Kim, Vladimir I,Gelfand
The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025-10-01
pmid:40908144Ocular Motor and Vestibular Profile in Spinocerebellar Ataxia Type 27B: Toward a Practical Bedside Diagnostic Framework.
Leonardo Eleuterio,Ariello, Daniel R,Gold, Weiyi,Mu, Michael C,Schubert, Claire,Allen, Ashley,Paul, David P W,Rastall
Cerebellum (London, England) · 2025-09-04
pmid:40906330The Case of Spinocerebellar Ataxias in Amazonas (Northern Brazil): An Analysis of Disease Frequency from a Geographic, Historical, and Genetic-Evolutionary Perspective.
Diana Vieira,Brito, Marcus Vinicius,Della Coletta, Giselle Benevides Monteiro,Ferreira, Sabrina Rodrigues,da Silva, Patricia Batista de,Azevedo, Cleiton,Fantin
Cerebellum (London, England) · 2025-09-03
pmid:40900235