Immunogen sequence: DWVVAPISVP ENGKGPFPQR LNQLKSNKDR DTKIFYSITG PGADSPPEGV FAVEKETGWL LLNKPLDREE IAKYELFGHA VSENGASVED PMNISIIVTD QNDHKPKFTQ DTFRGSVLEG VLPGTSVMQV TATDEDDAIY TYNGVVAYSI HSQEPKDPHD LMFTIHRSTG TISVISSGLD REKVPEYTLT IQATDMDGDG STTTAVAVVE ILD