FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Gene: Hsap\ATXN1
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General Information
Symbol
Hsap\ATXN1
Species
H. sapiens
Name
ataxin 1
Annotation Symbol
Feature Type
FlyBase ID
FBgn0026422
Gene Model Status
Stock Availability
Gene Summary
Contribute a Gene Snapshot for this gene.
Also Known As

SCA1, ATXN1, ATX1, spinocerebellar ataxia type 1

Key Links
Foreign Gene Data

Foreign sequence; species == Homo sapiens; gene == ATXN1; HGNC:10548.

Summaries
Alleles, Insertions, Transgenic Constructs
Classical and Insertion Alleles ( 0 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 8 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Hsap\ATXN1
Transgenic constructs containing regulatory region of Hsap\ATXN1
Variants
Variant Molecular Consequences
Alleles Representing Disease-Implicated Variants
Phenotypes
For more details about a specific phenotype click on the relevant allele symbol.
Lethality
Allele
Other Phenotypes
Allele
Phenotype manifest in
Allele
interneuron & axon, with Scer\GAL4VNC.ap
interneuron & cell body, with Scer\GAL4VNC.ap
Orthologs
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Drosophila melanogaster (Fruit fly) (1)
7 of 14
Yes
Yes
0  
Human Disease Associations
FlyBase Human Disease Model Reports
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 5 )
Potential Models Based on Orthology ( 0 )
Human Ortholog
Disease
Evidence
References
Modifiers Based on Experimental Evidence ( 5 )
Allele
Disease
Interaction
References
is ameliorated by NmnatUAS.PD
is exacerbated by NmnatUAS.PC
is exacerbated by AktUAS.Tag:HA
is ameliorated by Akt04226
is ameliorated by SdrKK104654
is ameliorated by AdukKK102129
is ameliorated by WnkKK102654
is ameliorated by BubR1DN.UAS
is ameliorated by JIL-1KK101300
is ameliorated by JIL-1KG08229
is ameliorated by Dsor1G79
is ameliorated by Ras85D06677
is ameliorated by licKK108550
is ameliorated by rl1
is ameliorated by Ras64BGD1517
is ameliorated by FntbKK108342
is ameliorated by RafKK100982
is ameliorated by drkKG03077
is ameliorated by SosKG10074
is ameliorated by FntaKK100303
is ameliorated by Spf45J23
is ameliorated by DnaJ-1EP411
is exacerbated by skdL7062
is exacerbated by Sin3AdQ4
is exacerbated by GstS106253
is ameliorated by vibEP513
is exacerbated by eff8
is exacerbated by cpoEP3378
is exacerbated by Diap14
is exacerbated by Sirt1EP2300
is exacerbated by taraEP3463
is exacerbated by pumEP3461
is exacerbated by Tecr05634
is ameliorated by pumbem
is exacerbated by HDAC104556
is exacerbated by CtBP03463
is ameliorated by 14-3-3εex4
is ameliorated by ps3
is ameliorated by psj449
is ameliorated by Akt04226
is ameliorated by mubEP3623
is exacerbated by mub04093
is ameliorated by vibEP651
is exacerbated by sovKG00226
is ameliorated by sovKG00226
is exacerbated by Hsap\NLKUAS.cJa
is ameliorated by nmoadk2
Disease Associations of Human Orthologs (via DIOPT v9.1 and OMIM)
Note that ortholog calls supported by only 1 or 2 algorithms (DIOPT score < 3) are not shown.
Homo sapiens (Human)
Gene name
Score
OMIM
OMIM Phenotype
DO term
Complementation?
Transgene?
Functional Complementation Data
Functional complementation data is computed by FlyBase using a combination of the orthology data obtained from DIOPT and OrthoDB and the allele-level genetic interaction data curated from the literature.
Interactions
Summary of Physical Interactions
Interaction Browsers
Summary of Genetic Interactions
Interaction Browsers
Starting gene(s)
Interaction type
Interacting gene(s)
Reference
Starting gene(s)
Interaction type
Interacting gene(s)
Reference
External Data
Linkouts
Class of Gene
Stocks and Reagents
Other Comments
Relationship to Other Genes
Source for database merge of
Additional comments
Nomenclature History
Source for database identify of

Source for identity of: Hsap\ATXN1 Hsap\ATX1

Nomenclature comments
Etymology
Synonyms and Secondary IDs (24)
Reported As
Name Synonyms
spinocerebellar ataxia 1
spinocerebellar ataxia 1 (olivopontocerebellar ataxia 1, autosomal dominant, ataxin 1)
spinocerebellar ataxia type 1
Secondary FlyBase IDs
    Datasets (0)
    Study focus (0)
    Experimental Role
    Project
    Project Type
    Title
    Study result (0)
    Result
    Result Type
    Title
    External Crossreferences and Linkouts ( 6 )
    Sequence Crossreferences
    NCBI Gene - Gene integrates information from a wide range of species. A record may include nomenclature, Reference Sequences (RefSeqs), maps, pathways, variations, phenotypes, and links to genome-, phenotype-, and locus-specific resources worldwide.
    Other crossreferences
    MARRVEL - MARRVEL (human gene)
    OMIM_GENE - Online Mendelian Inheritance in Man (Genes)
    OMIM_PHENOTYPE - Online Mendelian Inheritance in Man (Phenotypes)
    References (74)