_:vb50945382 . _:vb50945382 . _:vb50945382 . _:vb50945382 "An autosomal dominant cerebellar ataxia characterized by gait instability, dysarthria, nystagmus, and saccadic pursuits with variable age of onset and severity and slow progression that has_material_basis_in heterozygous mutation of the CACNA1G gene on chromosome 17q21."^^ . _:vb50945382 . _:vb50945382 . _:vb50945382 "url:https://www.ncbi.nlm.nih.gov/pubmed/26456284"^^ .