Immunogen sequence: MTIGRMENVE VFTAEGKGRG LKATKEFWAA DIIFAERAYS AVVFDSLVNF VCHTCFKRQE KLHRCGQCKF AHYCDRTCQK DAWLNHKNEC SAIKRYGKVP NENIRLAARI MWRVEREGTG LTEGCLVSVD DLQNHVEHFG EEEQKDLRVD VDTFLQYWPP QSQQFSMQYI SHIFGVINCN GFTLSDQRGL QAVGVGIFPN LGLVNHDCWP NCT