Immunogen sequence: RLHVVGAPGG QSLSLSLDDL HNFPRYEITV TLQCAGNRRS EMTQVKEVKG LEWRTGAIST ARWAGARLCD VLAQAGHQLC ETEAHVCFEG LDSDPTGT Highest antigen sequence identity to the following orthologs: Mouse - 91%, Rat - 92%. Sulfite oxidase is a homodimeric protein