ataxin 2

Ataxin-2 is a protein that in humans is encoded by the ATXN2 gene. Mutations in ATXN2 cause spinocerebellar ataxia type 2 (SCA2).

== Protein structure == Ataxin-2 contains the following protein domains: Two LSm domains, which likely allow it to bind RNA A PAM2 motif, predicted to associate with the poly(A)-binding protein A polyglutamine tract in some species (located near the amino terminal in primates and between the LSm domains in insects) A potential transcript variant, missing an internal coding exon, has been described; however, its full-length nature is not certain.