Immunogen sequence: MPLPVALQTR LAKRGILKHL EPEPEEEIIA EDYDDDPVDY EATRLEGLPP SWYKVFDPSC GLPYYWNADT DLVSWLSPHD PNSVVTKSAK KLRSSNADAE EKLDRSHDKS DRGHDKSDRS HEKLDRGHDK SDRGHDKSDR DRERGYDKVD RERERDRERD RDRGYDKADR EEGKERRHHR REELAPYPKS KKAVSRKDEE LDPMDPSSYS DAP