Anti-POLN antibodies are used in the immunodetection of the protein DNA polymerase nu. In humans, the canonical protein has a reported length of 900 amino acid residues and a mass of 100.3 kDa. Its subcellular localization is in the nucleus. Up to 2 different isoforms have been reported for this protein. It is reported to be highly expressed in the testis and heart. A member of the DNA polymerase type-A protein family, POLN is known to be involved with DNA replication and DNA repair. Synonyms for this target antigen include DNA polymerase POL4P, polymerase (DNA directed) nu, polymerase (DNA) nu, and DNA polymerase N. POLN gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some POLN antibodies may have been used in research and have associated citations. These antibodies are most commonly used in Western Blot experiments, among other applications.