NCIt definition : Ataxin-1 (815 aa, 87 kDa) is encoded by the human ATXN1 gene. This protein is involved
in chromatin binding, RNA metabolism and Notch signaling.;
NCIt note : CGA repeat expansion within the coding region of the ATXN1 gene encodes an expanded
polyglutamine tract in the mutated forms of ataxin-1. Expanded polyglutamine tracts
may inhibit RNA binding by and may impair proteasome-mediated degradation of ataxin-1.
(OMIM);