FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Gene: Hsap\ATXN3
Open Close
General Information
Symbol
Hsap\ATXN3
Species
H. sapiens
Name
ataxin 3
Annotation Symbol
Feature Type
FlyBase ID
FBgn0024961
Gene Model Status
Stock Availability
Gene Summary
Contribute a Gene Snapshot for this gene.
Also Known As

SCA3, MJD, ATXN3, MJDtr, SCA3tr

Key Links
Foreign Gene Data

Foreign sequence; species == Homo sapiens; gene == ATXN3; HGNC:7106.

Summaries
Alleles, Insertions, Transgenic Constructs
Classical and Insertion Alleles ( 0 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 82 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Hsap\ATXN3
Transgenic constructs containing regulatory region of Hsap\ATXN3
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
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)
2 of 14
Yes
No
0  
Human Disease Associations
FlyBase Human Disease Model Reports
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 45 )
Allele
Disease
Evidence
References
Potential Models Based on Orthology ( 0 )
Human Ortholog
Disease
Evidence
References
Modifiers Based on Experimental Evidence ( 33 )
Allele
Disease
Interaction
References
is ameliorated by Rac1UAS.cLa
is exacerbated by Rac1V12.UAS
is exacerbated by CG7130GD2776
is exacerbated by Atg12JF02704
is exacerbated by Atg7GD11671
is exacerbated by Atg8aHMS01328
is ameliorated by Ube4BJF02691
is ameliorated by DnaJ-1UAS.cKa
is ameliorated by effHM05268
is ameliorated by parkHMS01651
is exacerbated by sip3GD3145
is exacerbated by STUB1HMS00986
is ameliorated by embE2-1A
is ameliorated by dbrEP9
is ameliorated by dbrEP456
is ameliorated by orb2B8-S
is ameliorated by wechE546
is ameliorated by Faf2E659
is ameliorated by mrjE1050
is exacerbated by Cdk5GD13840
is exacerbated by Atg600096
is exacerbated by ref(2)Pod2
is exacerbated by ref(2)Pod3
is ameliorated by embEY08770
is NOT exacerbated by cdmJF01428
is exacerbated by embJF01311
is ameliorated by cdmGS17666
is exacerbated by UckGD229
is ameliorated by Prp19G3080
is exacerbated by Prp19GD11681
is ameliorated by CrebAUAS.cUa
is ameliorated by Rac1UAS.cUa
is ameliorated by CthUAS.cSb
is exacerbated by Cul1GD9650
is exacerbated by Cul1NIG.1877R
is exacerbated by FipoQKK108266
is ameliorated by Atx2HMS02726
is exacerbated by MycJF01762
is ameliorated by MycUAS.cZa
is ameliorated by CalpAJF03391
is ameliorated by CalpAKK104532
is ameliorated by Rack1KK109073
is ameliorated by Kcmf1HMS00511
is ameliorated by Usp47UAS.cXa
is ameliorated by poeHMS00739
is ameliorated by rlUAS.Tag:FLAG
is ameliorated by prosHMJ02107
is ameliorated by tupHMC03317
is ameliorated by CharonKK105778
is ameliorated by DreddHMS00063
is ameliorated by RelGD1199
is ameliorated by caspUAS.Tag:V5
is ameliorated by ftz-f1HMS00019
is ameliorated by Droj2GL00508
is exacerbated by Hsp110HMS01080
is exacerbated by Pdk1JF02807
is exacerbated by zipHMS01618
is exacerbated by TbpsI10
is exacerbated by TbpUAS.cHa
is ameliorated by nejEP1410
is exacerbated by Khc9
is exacerbated by loqsf00791
is ameliorated by mir-banB90.1
is exacerbated by mblUAS.cLa
is ameliorated by Rpn11DANC
is exacerbated by U2af50XR15
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
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
DroID - A comprehensive database of gene and protein interactions.
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
Nomenclature comments
Etymology
Synonyms and Secondary IDs (34)
Reported As
Symbol Synonym
Ataxin-3(SCA3)
Name Synonyms
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 ( 8 )
    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)
    Linkouts
    DroID - A comprehensive database of gene and protein interactions.
    References (198)