Immunogen sequence: PPPGMFVVPD TVDMTKIHAL ITGPFDTPYE GGFFLFVFRC PPDYPIHPPR VKLMTTGNNT VRFNPNFYRN GKVCLSILGT WTGPAWSPAQ SISSVLISIQ SLMTENPYHN EPGFEQERHP GDSKNYNECI RHETIRVAVC DMMEGKCPCP EPLRGVMEKS FLEYYDFYEV ACKDRLHLQG QTMQDPFGEK RGHFDYQSLL MRLGLIRQKV LER