Immunogen sequence: QVPTQLEDIR ALLAATGPNL PSVLTSPLGT QLVLDPGNSA LLGCPIKGHP VPNITWFHGG QPIVTATGLT HHILAAGQIL QVANLSGGSQ GEFSCLAQNE AGVLMQKASL VIQDYWWSVD RLATCS Highest antigen sequence identity to the following orthologs: Mouse - 90%, Rat - 89%. Punctin (