Recombinant Human Splicing factor U2AF 65 kDa subunit (U2AF2)

Uniprot Id

P26368

Target Species

Human

Target Name

U2AF2

Target Full Name

Splicing factor U2AF 65 kDa subunit

Target Function

Plays a role in pre-mRNA splicing and 3'-end processing. By recruiting PRPF19 and the PRP19C/Prp19 complex/NTC/Nineteen complex to the RNA polymerase II C-terminal domain (CTD), and thereby pre-mRNA, may couple transcription to splicing. Induces cardiac troponin-T (TNNT2) pre-mRNA exon inclusion in muscle. Regulates the TNNT2 exon 5 inclusion through competition with MBNL1. Binds preferentially to a single-stranded structure within the polypyrimidine tract of TNNT2 intron 4 during spliceosome assembly. Required for the export of mRNA out of the nucleus, even if the mRNA is encoded by an intron-less gene. Represses the splicing of MAPT/Tau exon 10. Positively regulates pre-mRNA 3'-end processing by recruiting the CFIm complex to cleavage and polyadenylation signals.

Target Subcellular Location

Nucleus.

Target Protein Families

Splicing factor SR family

Target Research Area

Others

Target Synonyms

hU2AF(65); hU2AF65; Splicing factor U2AF 65 kDa subunit; U2 (RNU2) small nuclear RNA auxiliary factor 2; U2 auxiliary factor 65 kDa subunit; U2 small nuclear ribonucleoprotein auxiliary factor (65kD); U2 small nuclear RNA auxiliary factor 2; U2 snRNP auxiliary factor large subunit; U2af2; U2AF2_HUMAN; U2AF65

Target Background

U2 auxiliary factor (U2AF), comprised of a large and a small subunit, is a non-snRNP protein required for the binding of U2 snRNP to the pre-mRNA branch site. This gene encodes the U2AF large subunit which contains a sequence-specific RNA-binding region with 3 RNA recognition motifs and an Arg/Ser-rich domain necessary for splicing. The large subunit binds to the polypyrimidine tract of introns early during spliceosome assembly. Multiple transcript variants have been detected for this gene, but the full-length natures of only two have been determined to date.