has material basis in germline mutation in ATXN1 spinocerebellar ataxia type 1 https://www.malacards.org/card/spinocerebellar_ataxia_1 spinocerebellar ataxia 1 Orphanet:98755 Sca1 SCA1 UMLS:C0752120 GARD:0004071 DOID:0050954 icd11.foundation:2071487961 NANDO:1200045 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. NCIT:C129982 MEDGEN:155703 OMIM:164400 SCTID:715748006 ATXN1 autosomal dominant cerebellar ataxia type I OPCA1 MONDO:0008119 autosomal dominant cerebellar ataxia type I caused by mutation in ATXN1 spinocerebellar ataxia type 1 OPCA4 Huntington disease-like syndrome autosomal dominant cerebellar ataxia type I