Anti-RNF123 antibodies are used in the immunodetection of the protein ring finger protein 123. In humans, the canonical protein has a reported length of 1314 amino acid residues and a mass of 148.5 kDa. Its subcellular localization is in the cytoplasm. Up to 2 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. RNF123 is a known catalytic subunit of the KPC complex that acts as E3 ubiquitin-protein ligase. Post-translational modifications have been described, including ubiquitination. Synonyms for this target antigen include Kip1 ubiquitination-promoting complex subunit 1, RING-type E3 ubiquitin transferase RNF123, kip1 ubiquitination-promoting complex protein 1, and E3 ubiquitin-protein ligase RNF123. RNF123 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some RNF123 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA, Immunofluorescence, and Immunohistochemistry are also common applications.