Immunogen sequence: MVLSGCAIIV RGQPRGGPPP ERQINLSNIR AGNLARRAAA TQPDAKDTPD EPWAFPAREF LRKKLIGKEV CFTIENKTPQ GREYGMIYLG KDTNGENIAE SLVAEGLATR REGMRANNPE QNRLSECEEQ AKAAKKGMWS EGNGSHTIRD LKYTIENPRH FVDSHHQKPV NAIIEHVRDG SVVRALLLPD YYLVTVMLSG IKCPTFRREA DGS