Anti-H3.3 histone B antibodies are used for the immunodetection of the protein encoded by the H3-3B gene. Other names for this target antigen include H3-3A, H3.3B, H3F3B, histone H3.3, H3 histone family member 3B, H3 histone, family 3B (H3.3B), and BRYLIB2. Gene orthologs have been identified in the mouse, rat, bovine, frog, chimpanzee and chicken species.