Immunogen sequence: MTSELDIFVG NTTLIDEDVY RLWLDGYSVT DAVALRVRSG ILEQTGATAA VLQSDTMDHY RTFHMLERLL HAPPKLLHQL IFQIPPSRQA LLIERYYAFD EAFVREVLGK KLSKGTKKDL DDISTKTGIT LKSCRRQFDN FKRVFKVVEE MRGSLVDNIQ QHFLLSDRLA RDYAAIVFFA NNRFETGKKK LQYLSFGDFA FCAELMIQNW TLG