Immunogen sequence: MSGNGNAAAT AEENSPKMRV IRVGTRKSQL ARIQTDSVVA TLKASYPGLQ FEIIAMSTTG DKILDTALSK IGEKSLFTKE LEHALEKNEV DLVVHSLKDL PTVLPPGFTI GAICKRENPH DAVVFHPKFV GKTLETLPEK SVVGTSSLRR AAQLQRKFPH LEFRSIRGNL NTRLRKLDEQ QEFSAIILAT AGLQRMGWHN RVGQILHPEE CMY