Anti-H1 antibodies are protein reagents that detect specific antigens. The H1 antigen is another term for the human protein H1.5 linker histone, cluster member, encoded by the H1-5 gene. The protein is known to function in chromatin organization and muscle organ development, among other biological roles. Canonically, it has an amino acid length of 226 residues and a mass of 22.6 kilodaltons. Its subcellular localization is in the nucleus and chromosomes and it is ubiquitously expressed across many tissue types. The H1 protein is a member of the Histone H1/H5 protein family. Western Blot is the most common application for the H1 antibodies listed below. ELISA, Immunofluorescence, and Immunohistochemistry are also common applications.