Immunogen sequence: LKSKQAQQKR DYSIAAGLQY EVGDKCQVRL DHNGKFLNAD VQGIHSENGP VLVEELGKKH TSKNLKAPPP ESWNTVSGKK MKKPSTSGQN FHSDVDYRGP KNPSKPIKAP SALPPRLQHP SGVRQHAFSS HSSGSQSQKF SSEHKNLSRT PSQIIRKPDR ERVEDFDHTS RESNYFGLSP EERREKQAIE ESRLLYEIQN RDEQAFPALS SSS