Immunogen sequence: MDTDLYDEFG NYIGPELDSD EDDDELGRET KDLDEMDDDD DDDDVGDHDD DHPGMEVVLH EDKKYYPTAE EVYGPEVETI VQEEDTQPLT EPIIKPVKTK KFTLMEQTLP VTVYEMDFLA DLMDNSELIR NVTLCGHLHH GKTCFVDCLI EQTHPEIRKR YDQDLCYTDI LFTEQERGVG IKSTPVTVVL PDTKGKSYLF NIMDT. EFTUD2