Immunogen sequence: HLPPHISNNY QRLEHFDRIL EMQNCEGRDI PNILDHDLII WFGDMNFRIE DFGLHFVRES IKNRCYGGLW EKDQLSIAKK HDPLLREFQE GRLLFPPTYK FDRNSNDYDT SEKKRKPAWT DRILWRLKRQ PCAGPDTPIP PASHFSLSLR GYSSHMTYGI SDHKPVSGTF DLELKPLVSA PLIVLMPEDL WTVENDMMVS YSSTSDFPSS PWD