Immunogen sequence: YEDNDEVHIE VHNPRNTEAV TLNFRGEKLA KVMGFLADKK PEQGQRVSGI LVKRNFNYHI LSPCDLSNYT DLAMSTVKQT QAIPYTGPFN LLCYQLQKLT GDVEELEIQE KPALKVFKNI TVIQEPGMVV LEWLANPSND MYADTVTTVI LEVQSNPKIR KGAVQKVSKK LEMHVYSKRL EIMLQDIFGE DCVSVKDDSI LSVTVDGKTA NLN