RAN translation, which was discovered in SCA8, has previously been shown to occur across CAG and CUG expansion transcripts, making treatments for SCA8 potentially relevant to a broad group of diseases, including SCA1, SCA2, SCA3, SCA6, SCA7, SCA12, Huntington's disease, and myotonic dystrophy type 1. Here, CACNA1A is linked to juvenile Huntington disease.