U2 auxiliary factor (U2AF), comprising a large and a small subunit, is a non-snRNP protein required for the binding of U2 snRNP to the pre-mRNA branch site. U2 (RNU2) small nuclear RNA auxiliary factor 1 (U2AF1,synonyms: RN, FP793, U2AF35, U2AFBP, RNU2AF1)is the small subunit which plays a critical role in both constitutive and enhancer-dependent RNA splicing by directly mediating interactions between the large subunit and proteins bound to the enhancers. The U2AF1 gene is localized to chromosome 21q22.3, which is the critical region for three diseases, progressive myoclonus epilepsy, autoimmune polyglandular disease type 1, and one form of bipolar affective disorder.
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Protein Aliases: FP793; RN; RNU2AF1; Splicing factor U2AF 35 kDa subunit; Splicing factor U2AF 35 kDa subunit-like protein; splicing factor U2AF 35kDa subunit; U2 auxiliary factor 35 kDa subunit; U2 small nuclear ribonucleoprotein auxillary factor, 35-KD subunit; U2 small nuclear RNA auxiliary factor 1; U2 small nuclear RNA auxiliary factor 1-like protein 5; U2 small nuclear RNA auxillary factor 1; U2 snRNP auxiliary factor small subunit; U2(RNU2) small nuclear RNA auxiliary factor binding protein; U2AF1; U2AF35; U2AFBP
Gene Aliases: FP793; RN; RNU2AF1; U2AF1; U2AF1L5; U2AF35; U2AFBP
UniProt ID: (Human) Q01081
Entrez Gene ID: (Human) 7307