Immunogen sequence: SSPNPFSEDVK RPPAPLVTDK EARKKVLKQA FSANQVPEKL DVVVIGSGFG GLAAAAILAK AGKRVLVLEQ HTKAGGCCHT FGKNGLEFDT GIHYIGRMEE GSIGRFILDQ ITEGQLDWAP LSSPFDIMVL EGPNGRKEYP M Highest antigen sequence identity to the following orthologs - mouse 88%, rat