Anti-UPF3 antibodies enable researchers to detect and measure the UPF3 antigen in biological samples. This target is a reported synonym of the UPF3A gene, which encodes UPF3A regulator of nonsense mediated mRNA decay. This protein is known to function in in utero embryonic development and spermatogenesis, among other biological roles. The human version of UPF3 has a canonical amino acid length of 476 residues and a protein mass of 54.7 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the nucleus and cytoplasm of cells and notably expressed in many tissues, such as the bronchus and nasopharynx. UPF3 is a member of the RENT3 protein family. ELISA and Western Blot are common applications for UPF3 antibodies.