Anti-H2BW2 antibodies are used in the immunodetection of the protein H2B.W histone 2. In humans, the canonical protein has a reported length of 154 amino acid residues and a mass of 17 kDa. Its subcellular localization is in the nucleus and chromosomes. A member of the Histone H2B protein family, H2BW2 is an important component of nucleosome. Synonyms for this target antigen include H2B histone family member M, H2B.M histone, H2B/s, histone H2B.s, and histone H2B type F-M.