Immunogen sequence: ASGANFEYII AEKRGKNNTV GLIQLNRPKA LNALCDGLID ELNQALKTFE EDPAVGAIVL TGGDKAFAAG ADIKEMQNLS FQDCYSSKFL KHWDHLTQVK KPVIAAVNGY AFGGGCELAM MCDIIYAGEK AQFAQPEILI GTIPGAGGTQ RLTRAVGKSL AMEMVLTGDR ISAQDAKQAG LVSKICPVET LVEEAIQCAE KIASNSKIVV AMA