Anti-RAD18 antibodies are used in the immunodetection of the protein RAD18 E3 ubiquitin protein ligase. In humans, the canonical protein has a reported length of 495 amino acid residues and a mass of 56.2 kDa. Its subcellular localization is in the nucleus and cytoplasm. It is notably widely expressed in many tissue types. A member of the RAD18 protein family, RAD18 is known to be involved with DNA damage pathways and DNA repair. Synonyms for this target antigen include RAD18 homolog, RAD18, S. cerevisiae, homolog, RING finger protein 73, RING-type E3 ubiquitin transferase RAD18, hHR18, and E3 ubiquitin-protein ligase RAD18. RAD18 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. Over 80 citations in the literature describe the use of RAD18 antibodies in research. Western Blot is a widely used application for these antibodies. ELISA, Immunofluorescence, and Immunohistochemistry are also common applications.