Anti-DFFB antibodies are used in the immunodetection of the protein DNA fragmentation factor subunit beta. In humans, the canonical protein has a reported length of 338 amino acid residues and a mass of 39.1 kDa. Its subcellular localization is in the nucleus and cytoplasm. Up to 4 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. DFFB is a reported nuclease that induces DNA fragmentation and chromatin condensation during apoptosis. Synonyms for this target antigen include CPAN, DFF-40, DFF2, DFF40, DNA fragmentation factor 40 kDa subunit, and CAD. DFFB gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of DFFB antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA, Immunofluorescence, and Immunohistochemistry are also common applications.