Immunogen sequence: NKSTQPDEQLT MNSEKSMHRK STELVNEITC ENTEWPGQRS TNFQIISSYP DDESVYCTTE KYNVMEHRHN DMHYECMTPC QVTSDSDKEK TIAFLLKELD ILRTSNKKLQ QKLAKEDKEQ RKLKFKLELQ EKETEA Highest antigen sequence identity to the following orthologs - mouse 43%, rat 43%.