Anti-H2AFY antibodies are protein reagents that detect specific antigens. The H2AFY antigen is another term for the human protein macroH2A.1 histone, encoded by the MACROH2A1 gene. The protein is known to function in DNA repair and the response to oxidative stress, among other biological roles. Canonically, it has an amino acid length of 369 residues and a mass of 39.2 kilodaltons. Its subcellular localization is in the nucleus and it is widely expressed across many tissue types. The H2AFY protein is a member of the Histone H2A protein family. Other alias names for H2AFY include H2A.y, H2A/y, and H2AF12M. A number of H2AFY antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. Immunocytochemistry, Immunofluorescence, and Immunohistochemistry are also common applications.