Anti-RAD51 antibodies are used in the immunodetection of the protein RAD51 recombinase. In humans, the canonical protein has a reported length of 339 amino acid residues and a mass of 37 kDa. Its subcellular localization is in the nucleus, mitochondria, and cytoplasm. Up to 4 different isoforms have been reported for this protein. It is reported to be highly expressed in the testis and thymus, followed by small intestine, placenta, colon, pancreas and ovary. A member of the RecA protein family, RAD51 is known to play an important role in homologous strand exchange, a key step in DNA repair through homologous recombination (HR). Synonyms for this target antigen include FANCR, HRAD51, HsRad51, HsT16930, MRMV2, RAD51A, RECA, and BRCC5. RAD51 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Over 580 citations in the literature describe the use of RAD51 antibodies in research. Western Blot is a widely used application for these antibodies. Immunofluorescence and Immunohistochemistry are also common applications.