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spinocerebellar ataxia type 1

Disease Summary
Associated Targets (34)
Tbio

24

Tchem

7

Tclin

2

Tdark

1


GARD Rare
Mondo Description Spinocerebellar ataxia type 1 (SCA1) is a subtype of type I autosomal dominant cerebellar ataxia (ADCA type I) characterized by dysarthria, writing difficulties, limb ataxia, and commonly nystagmus and saccadic abnormalities.
Uniprot Description Spinocerebellar ataxia is a clinically and genetically heterogeneous group of cerebellar disorders. Patients show progressive incoordination of gait and often poor coordination of hands, speech and eye movements, due to cerebellum degeneration with variable involvement of the brainstem and spinal cord. SCA1 belongs to the autosomal dominant cerebellar ataxias type I (ADCA I) which are characterized by cerebellar ataxia in combination with additional clinical features like optic atrophy, ophthalmoplegia, bulbar and extrapyramidal signs, peripheral neuropathy and dementia. SCA1 is caused by expansion of a CAG repeat in the coding region of ATXN1. Longer expansions result in earlier onset and more severe clinical manifestations of the disease.
Disease Ontology Description An autosomal dominant cerebellar ataxia that is characterized by ataxia, dysarthria, dysphagia, dystonia and peripheral neuropathy that begins in early adulthood, has_material_basis_in the expanded (CAG)n trinucleotide repeat of ataxin-1 gene on chromosome 6p22.
Mondo Term and Equivalent IDs
MONDO:0008119:  spinocerebellar ataxia type 1
GARD:0004071: 
NCIT:C129982: 
Orphanet:98755: 
SCTID:715748006: 
UMLS:C0752120: