Immunogen sequence: RIKNPTRVEE IICGLIKGGA AKLQIITDFD MTLSRFSYKG KRCPTCHNII DNCKLVTDEC RKKLLQLKEK YYAIEVDPVL TVEEKYPYMV EWYTKSHGLL VQQALPKAKL KEIVAESDVM LKEGY Highest antigen sequence identity to the following orthologs: Mouse - 93%, Rat - 93%. Pyrimidine