ATXN8OS Intermediate Expansion Acts as a Genetic Modifier in Spinocerebellar Ataxia Type 48 (SCA48/STUB1).
BACKGROUND Association between monoallelic STUB1 variant and expanded ATXN8OS alleles was recently reported, suggesting a pathogenic interaction that may influence spinocerebellar ataxia type 48 (SCA48) phenotype. OBJECTIVES We investigated the frequency and clinical impact of ATXN8OS in a large cohort of STUB1 carri...