Anti-HAT1 antibodies are used in the immunodetection of the protein histone acetyltransferase 1. In humans, the canonical protein has a reported length of 419 amino acid residues and a mass of 49.5 kDa. Its subcellular localization is in the nucleus, mitochondria, and cytoplasm. Up to 2 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. A member of the HAT1 protein family, HAT1 is reported to be a histone acetyltransferase that plays a role in different biological processes including cell cycle progression, glucose metabolism, histone production or DNA damage repair. Synonyms for this target antigen include KAT1 and histone acetyltransferase type B catalytic subunit. HAT1 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of HAT1 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA, Immunofluorescence, and Immunohistochemistry are also common applications.