Anti-H2BU1 antibodies are protein reagents that detect specific antigens. The H2BU1 antigen is another term for the human protein H2B clustered histone 26, encoded by the H2BC26 gene. The protein is an important component of nucleosome. Canonically, it has an amino acid length of 126 residues and a mass of 13.9 kilodaltons. Its subcellular localization is in the nucleus and chromosomes and it is widely expressed in many tissue types. The H2BU1 protein is a member of the Histone H2B protein family.