Immunogen sequence: ERGKHDGSHE GTVYFKCRHP TGGSFIRPNK VNFGTDFLTA IKNRYVLEDG PEEDRKEQIV TIGNKPVETI GFDSIMKQQS QLSKLQEVSL RNCAVSCAGE Highest antigen sequence identity to the following orthologs: Mouse - 71%, Rat - 71%. Cofactor E is one of four proteins (co