This domain is the first (N-terminal) repression domain of nuclear receptor-interacting protein 1 [1-2].

1: Characterization of four autonomous repression domains in the corepressor receptor interacting protein 140. Christian M, Tullet JM, Parker MG; J Biol Chem. 2004;279:15645-15651. PMID:14736873

2: Multiple domains of the Receptor-Interacting Protein 140 contribute to transcription inhibition. Castet A, Boulahtouf A, Versini G, Bonnet S, Augereau P, Vignon F, Khochbin S, Jalaguier S, Cavailles V; Nucleic Acids Res. 2004;32:1957-1966. PMID:15060175