Application notesThis antibody gave a positive result in ELISA against the immunizing peptide (ab45333).
Not yet tested in other applications.
RelevanceUPF3B is part of a post-splicing multiprotein complex involved in both mRNA nuclear export and mRNA surveillance. mRNA surveillance detects exported mRNAs with truncated open reading frames and initiates nonsense-mediated mRNA decay (NMD). When translation ends upstream from the last exon-exon junction, this triggers NMD to degrade mRNAs containing premature stop codons. UPF3B binds to the mRNA and remains bound after nuclear export, acting as a nucleocytoplasmic shuttling protein. It forms with Y14 a complex that binds specifically 20 nt upstream of exon-exon junctions. This gene is located on the long arm of chromosome X (referenced from entrez gene).
Cellular localizationNucleus. Cytoplasm. Note: Shuttling between the nucleus and the cytoplasm.