P91-PHOX is a reported alias of the human protein 'cytochrome b-245 beta chain', encoded by the gene CYBB. Anti-P91-PHOX antibodies are available from several suppliers. The full protein is reported to be 570 amino acid residues in length. Based on antigen name, there may be canine, monkey, mouse and rat variants of this protein. See the antibody supplier page for important details, including specific immunogenicity and validated applications.