Immunogen sequence: MATGADVRDI LELGGPEGDA ASGTISKKDI INPDKKKSKK SSETLTFKRP EGMHREVYAL LYSDKKDAPP LLPSDTGQGY RTVKAKLGSK KVRPWKWMPF TNPARKDGAM FFHWRRAAEE GKDYPFARFN KTVQVPVYSE QEYQLYLHDD AWTKAETDHL FDLSRRFDLR FVVIHDRYDH QQFKKRSVED LKERYYHICA KLANVRAVPG TDL