Homo sapiens Gene: ATXN1
Summary
InnateDB Gene IDBG-63112.5
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol ATXN1
Gene Name ataxin 1
Synonyms ATX1; D6S504E; SCA1
Species Homo sapiens
Ensembl Gene ENSG00000124788
Encoded Proteins
ataxin 1
ataxin 1
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
Entrez Gene
Summary The autosomal dominant cerebellar ataxias (ADCA) are a heterogeneous group of neurodegenerative disorders characterized by progressive degeneration of the cerebellum, brain stem and spinal cord. Clinically, ADCA has been divided into three groups: ADCA types I-III. ADCAI is genetically heterogeneous, with five genetic loci, designated spinocerebellar ataxia (SCA) 1, 2, 3, 4 and 6, being assigned to five different chromosomes. ADCAII, which always presents with retinal degeneration (SCA7), and ADCAIII often referred to as the `pure' cerebellar syndrome (SCA5), are most likely homogeneous disorders. Several SCA genes have been cloned and shown to contain CAG repeats in their coding regions. ADCA is caused by the expansion of the CAG repeats, producing an elongated polyglutamine tract in the corresponding protein. The expanded repeats are variable in size and unstable, usually increasing in size when transmitted to successive generations. The function of the ataxins is not known. This locus has been mapped to chromosome 6, and it has been determined that the diseased allele contains 41-81 CAG repeats, compared to 6-39 in the normal allele, and is associated with spinocerebellar ataxia type 1 (SCA1). At least two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jan 2010]
The autosomal dominant cerebellar ataxias (ADCA) are a heterogeneous group of neurodegenerative disorders characterized by progressive degeneration of the cerebellum, brain stem and spinal cord. Clinically, ADCA has been divided into three groups: ADCA types I-III. ADCAI is genetically heterogeneous, with five genetic loci, designated spinocerebellar ataxia (SCA) 1, 2, 3, 4 and 6, being assigned to five different chromosomes. ADCAII, which always presents with retinal degeneration (SCA7), and ADCAIII often referred to as the `pure\' cerebellar syndrome (SCA5), are most likely homogeneous disorders. Several SCA genes have been cloned and shown to contain CAG repeats in their coding regions. ADCA is caused by the expansion of the CAG repeats, producing an elongated polyglutamine tract in the corresponding protein. The expanded repeats are variable in size and unstable, usually increasing in size when transmitted to successive generations. The function of the ataxins is not known. This locus has been mapped to chromosome 6, and it has been determined that the diseased allele contains 41-81 CAG repeats, compared to 6-39 in the normal allele, and is associated with spinocerebellar ataxia type 1 (SCA1). At least two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jan 2010]
Gene Information
Type Protein coding
Genomic Location Chromosome 6:16299112-16761491
Strand Reverse strand
Band p22.3
Transcripts
ENST00000244769 ENSP00000244769
ENST00000436367 ENSP00000416360
ENST00000483591
ENST00000473388
ENST00000495178
ENST00000483954
ENST00000467008
ENST00000498374
ENST00000492857
ENST00000479680
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 309 experimentally validated interaction(s) in this database.
They are also associated with 3 interaction(s) predicted by orthology.
Experimentally validated
Total 309 [view]
Protein-Protein 309 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Predicted by orthology
Total 3 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0003677 DNA binding
GO:0003723 RNA binding
GO:0005515 protein binding
GO:0008022 protein C-terminus binding
GO:0008266 poly(U) RNA binding
GO:0034046 poly(G) binding
GO:0042802 identical protein binding
GO:0043621 protein self-association
Biological Process
GO:0006351 transcription, DNA-templated
GO:0006396 RNA processing
GO:0008219 cell death
GO:0008344 adult locomotory behavior
GO:0008542 visual learning
GO:0042326 negative regulation of phosphorylation
GO:0043569 negative regulation of insulin-like growth factor receptor signaling pathway
GO:0045892 negative regulation of transcription, DNA-templated
GO:0045944 positive regulation of transcription from RNA polymerase II promoter
GO:0051168 nuclear export
GO:0060079 regulation of excitatory postsynaptic membrane potential
Cellular Component
GO:0005634 nucleus
GO:0005654 nucleoplasm
GO:0005737 cytoplasm
GO:0016363 nuclear matrix
GO:0042272 nuclear RNA export factor complex
GO:0042405 nuclear inclusion body
GO:0043231 intracellular membrane-bounded organelle
Orthologs
Species
Mus musculus
Bos taurus
Gene ID
Gene Order
Not yet available
Cross-References
SwissProt
TrEMBL
UniProt Splice Variant
Entrez Gene
UniGene Hs.434961 Hs.608641 Hs.609470 Hs.712773 Hs.712843 Hs.713053 Hs.733997 Hs.737424
RefSeq NM_000332 NM_001128164
HUGO
OMIM
CCDS CCDS34342
HPRD 03333
IMGT
EMBL
GenPept
RNA Seq Atlas