Anti-H2AJ antibodies are used in the immunodetection of the protein H2A.J histone. In humans, the canonical protein has a reported length of 129 amino acid residues and a mass of 14 kDa. Its subcellular localization is in the nucleus and chromosomes. Up to 2 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. A member of the Histone H2A protein family, H2AJ is an important component of nucleosome. Post-translational modifications have been described, including ubiquitination, acetylation and phosphorylation. Synonyms for this target antigen include H2A histone family member J, buforin I, and histone H2A.J. H2AJ gene orthologs have been reported in the mouse, rat, bovine and chimpanzee species. Western Blot is a widely used application for the H2AJ antibodies listed below. In addition, ELISA is also a common application.