ATXN8, Official Symbol ATXN8provided by HGNC Official Full Name ataxin 8provided by HGNC Primary source HGNC:HGNC:32925 See related MIM:613289 Gene type protein coding Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Summary Spinocerebellar ataxia-8 (SCA8; {608768}) is a neurodegenerative disorder caused by a CTG/CAG trinucleotide repeat expansion on chromosome 13q21 (see {603680.0001} and {613289.0001}). Two genes span the CTG/CAG repeat and are expressed in opposite directions: ATXN8, which encodes a nearly pure polyglutamine expansion protein in the CAG direction, and ATXN8OS ({603680}), which, when transcribed, produces a noncoding CUG expansion RNA ({2:Moseley et al., 2006}).[supplied by OMIM, Mar 2010] Annotation information not in current annotation release