Ataxin-1 (ATXN1)

Chromatin-binding factor that repress Notch signaling in the absence of Notch intracellular domain by acting as a CBF1 corepressor. Binds to the HEY promoter and may help, Together with NCOR2, RBPJ-mediated repression.

Binds RNA in vitro. Might be involved in RNA metabolism (PubMed:21475249).