Anti-TRIM39 antibodies are used in the immunodetection of the protein tripartite motif containing 39. In humans, the canonical protein has a reported length of 518 amino acid residues and a mass of 59.7 kDa. Its subcellular localization is in the nucleus, mitochondria, and cytoplasm. Up to 2 different isoforms have been reported for this protein. It is widely expressed across many tissue types. A member of the TRIM/RBCC protein family, TRIM39 is known to be involved with the apoptotic pathway and DNA damage pathways. Post-translational modifications have been described, including ubiquitination. Synonyms for this target antigen include RING-type E3 ubiquitin transferase TRIM39, ring finger protein 23, testis-abundant finger protein, tripartite motif-containing protein 39, and E3 ubiquitin-protein ligase TRIM39. TRIM39 gene orthologs have been reported in the mouse and chimpanzee species. Some TRIM39 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. In addition, Immunohistochemistry is also a common application.