Immunogen sequence: SIFISYLENY IEVETGYLKS RSAMILQRYY DSKNHQKRSI GTGGIQDLKE RIRQRTNLPL GPSIDTHGET FLSQEVVVNL LQETKQAFER CHRLSDPSDL PRNAFRIFTI LVEFLCIEHI DYALETGLAG IPSSDSRNAN LYFLDVVQQA NTIFHLFDKQ FNDHLMPLIS SSPKLSECLQ KKKEIIEQME MKLDTGIDRT LNCMIGQMKH ILA