Immunogen sequence: GTLAAITFNA SGSKLASASE KGTVIRVFSV PDGQKLYEFR RGMKRYVTIS SLVFSMDSQF LCASSNTETV HIFKLEQVTN SRPEEPSTWS GYMGKMFMAA TNYLPTQVSD MMHQDRAFAT ARLNFSGQRN ICTLSTIQKL PRLLVASSSG HLYMYNLDPQ DGGECVLIKT HSLLGSGTTE ENKENDLRPS LPQSYAATVA RPSASSASTV PGY