Anti-H3C13 antibodies are used in the immunodetection of the protein H3 clustered histone 13. It is notably widely expressed in many tissue types. Synonyms for this target antigen include histone 2, H3d, histone cluster 2 H3 family member d, histone cluster 2, H3d, and histone H3.2. H3C13 gene orthologs have been reported in the mouse, bovine and chimpanzee species.