SCA7 ATXN7

Disease ID
SCA7
Gene ID
ATXN7

Disease

SCA
Name
Spinocerebellar Ataxia Type 7
Inheritance
Autosomal dominant
Description
Spinocerebellar ataxia-7 (SCA7) is an autosomal dominant neurodegenerative disorder characterized by adult onset of progressive cerebellar ataxia associated with pigmental macular dystrophy1 .
Prevalence
0.999 300,000
<1/300,000: predominantly found in those with North European and African ancestry2 .
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
Polyglutamine expansion leading to gain of function; toxic misfolded intermediated suspected2,7 .
Year
19968
Location in Gene
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

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
Clinical and genetic study of a Chinese family with spinocerebellar ataxia type 7.
Yan,Han, Benqiang,Deng, Mingyuan,Liu, Jianming,Jiang, Shuai,Wu, Yangtai,Guan
Neurology India · 2010-01-01
pmid:20739808
4
Spinocerebellar ataxia type 7 associated with pigmentary retinal dystrophy.
A,Michalik, J-J,Martin, C,Van Broeckhoven
European journal of human genetics : EJHG · 2004-01-01
pmid:14571264
5
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:37906407
6
Comprehensive genetic diagnosis of tandem repeat expansion disorders with programmable targeted nanopore sequencing.
Igor,Stevanovski, Sanjog R,Chintalaphani, Hasindu,Gamaarachchi, James M,Ferguson, Sandy S,Pineda, Carolin K,Scriba, Michel,Tchan, Victor,Fung, Karl,Ng, Andrea,Cortese, Henry,Houlden, Carol,Dobson-Stone, Lauren,Fitzpatrick, Glenda,Halliday, Gianina,Ravenscroft, Mark R,Davis, Nigel G,Laing, Avi,Fellner, Marina,Kennerson, Kishore R,Kumar, Ira W,Deveson
Science advances · 2022-03-04
pmid:35245110
7
Molecular pathogenesis and cellular pathology of spinocerebellar ataxia type 7 neurodegeneration.
Gwenn A,Garden, Albert R,La Spada
Cerebellum (London, England) · 2008-01-01
pmid:18418675
8
An expanded CAG repeat sequence in spinocerebellar ataxia type 7.
K,Lindblad, M L,Savontaus, G,Stevanin, M,Holmberg, K,Digre, C,Zander, H,Ehrsson, G,David, A,Benomar, E,Nikoskelainen, Y,Trottier, G,Holmgren, L J,Ptacek, A,Anttinen, A,Brice, M,Schalling
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)

Increased nuclear import characterizes aberrant nucleocytoplasmic transport in neurons from patients with spinocerebellar ataxia type 7.
Joshua G,Macopson-Jones, Maile,Adams, Julien,Philippe, Albert R,La Spada
Frontiers in molecular neuroscience · 2024-11-22
pmid:39649105
Screening for SCA27B, CANVAS and other repeat expansion disorders in Greek patients with late-onset cerebellar ataxia suggests a need to update current diagnostic algorithms.
Georgios,Koutsis, Chrisoula,Kartanou, Zoi,Kontogeorgiou, Chrysoula,Koniari, Alexandros,Mitrousias, David,Pellerin, Marie-Jose,Dicaire, Pablo,Iruzubieta, Matt C,Danzi, Konstantinos,Athanassopoulos, Nikolaos,Ragazos, Maria,Stamelou, Michail,Rentzos, Evangelos,Anagnostou, Stephan,Zuchner, Bernard,Brais, Henry,Houlden, Marios,Panas, Leonidas,Stefanis, Georgia,Karadima
Journal of the neurological sciences · 2024-11-15
pmid:39571249
Dysregulation of zebrin-II cell subtypes in the cerebellum is a shared feature across polyglutamine ataxia mouse models and patients.
Luke C,Bartelt, Pawel M,Switonski, Grażyna,Adamek, Fabiana,Longo, Juliana,Carvalho, Lisa A,Duvick, Sabrina I,Jarrah, Hayley S,McLoughlin, Daniel R,Scoles, Stefan M,Pulst, Harry T,Orr, Court,Hull, Craig B,Lowe, Albert R,La Spada
Science translational medicine · 2024-11-06
pmid:39504355
Spinocerebellar Ataxia in Brazil: A Comprehensive Genotype - Phenotype Analysis.
Maria Carolina Da,Cunha Ganimi, Christian Marques,Couto, Alessandra de,La Rocque Ferreira, Carmen Lucia,Antão Paiva
Cerebellum (London, England) · 2024-09-25
pmid:39317855
Respiratory neuropathology in spinocerebellar ataxia type 7.
Debolina D,Biswas, Yihan,Shi, Léa,El Haddad, Ronit,Sethi, Meredith,Huston, Sean,Kehoe, Evelyn R,Scarrow, Laura M,Strickland, Logan A,Pucci, Justin S,Dhindsa, Ani,Hunanyan, Albert R,La Spada, Mai K,ElMallah
JCI insight · 2024-07-18
pmid:39053472
Tremor-associated short tandem repeat intermediate and pathogenic expansions in familial essential tremor.
Xun,Zhou, Runcheng,He, Sheng,Zeng, Mingqiang,Li, Hongxu,Pan, Yuwen,Zhao, Zhenhua,Liu, Qian,Xu, Jifeng,Guo, Xinxiang,Yan, Jinchen,Li, Beisha,Tang, Qiying,Sun
Brain communications · 2024-06-29
pmid:38961870
Progressive degeneration in a new Drosophila model of spinocerebellar ataxia type 7.
Alyson,Sujkowski, Bedri,Ranxhi, Zoya R,Bangash, Zachary M,Chbihi, Matthew V,Prifti, Zaina,Qadri, Nadir,Alam, Sokol V,Todi, Wei-Ling,Tsou
Scientific reports · 2024-06-21
pmid:38906973
Generation of human induced pluripotent stem cell lines (LUMCi051-A,B and LUMCi052-A,B,C) of two patients with Spinocerebellar ataxia type 7.
Linde F,Bouwman, Milou E M,Joosen, Ronald A M,Buijsen, Linda M,van der Graaf, Barry A,Pepers, Bas J B,Voesenek, Erwin,Brosens, Bart P C,van de Warrenburg, Willeke M C,van Roon-Mom
Stem cell research · 2024-06-04
pmid:38851031
AAV-Mediated CAG-Targeting Selectively Reduces Polyglutamine-Expanded Protein and Attenuates Disease Phenotypes in a Spinocerebellar Ataxia Mouse Model.
Anna,Niewiadomska-Cimicka, Lorraine,Fievet, Magdalena,Surdyka, Ewelina,Jesion, Céline,Keime, Elisabeth,Singer, Aurélie,Eisenmann, Zaneta,Kalinowska-Poska, Hoa Huu Phuc,Nguyen, Agnieszka,Fiszer, Maciej,Figiel, Yvon,Trottier
International journal of molecular sciences · 2024-04-15
pmid:38673939