Immunogen sequence: QKYKYLAEDS NMSVPSEPSS PQSSTRTRSP SPDDILERVA ADVKEYEREN VDTFEASVKA KHNLMTVEQN NGSSQKKLLA PDMFTESDDM FAAYFDSARL RAAGIGKDFK ENPNLRDNWT DAEGYYRVNI GEVLDKRYNV YGYTGQGVFS NVVRARDNAR ANQEVAVKII RNNELMQKTG LKELEFLKKL NDADPDDKFH CLRLFRHFYH K.