Immunogen sequence: MEELLRRELG CSSVRATGHS GGGCISQGRS YDTDQGRVFV KVNPKAEARR MFEGEMASLT AILKTNTVKV PKPIKVLDAP GGGSVLVMEH MDMRHLSSHA AKLGAQLADL HLDNKKLGEM RLKEAGTVGR GGGQEERPFV ARFGFDVVTC CGYLPQVNDW QEDWVVFYAR QRIQPQMDMV EKESGDREAL QLWSALQLKI PDLFRDLEII PAL