ATXN1 and Huntington disease: For instance, the CureQ project (CureQ 2022) aims to more accurately predict onset and disease progression for three autosomal dominant NDDs – HD (MIM 143100), SCA1 (MIM 164400), and SCA3 (MIM 109150) – characterised by an expanded CAG repeat in the mutated coding gene (Huntingtin gene, Ataxin-1 gene, and Ataxin-3 gene respectively) (La Spada and Taylor 2003).