Immunogen sequence: EVDQLQGLRN SVRMELQDLE LQLEERLLGL EEQLRAVRMP SPFRSSALMG MCGSRSADNL SCPSPLNVME PVTELMQEQS YLKSELGLGL GEMGFEIPPG ESSESVFSQA TSESSSVCSG PSHANRRTGV PSTASVGKSK TPLVARKKVF RASVALTPTA PSRTGSVQTP PDLESSEEVD AAEGAPEVVG PKSEVEEGHG KLPSMPAAEE MHK