Immunogen sequence: RSENEKKSEC FSSPKTGFWD CCSTSYAQNL DFESSEGNTI ANSVGEISSK LSEKSGLCLS KRLNSIRSFE MNRTRTSSEA SMDAAYLDKI SELDSMMS Highest antigen sequence identity to the following orthologs: Mouse - 86%, Rat - 84%. RNF219 (Ring Finger Protein 219, C13orf7