Immunogen sequence: MISTNCTEEL ENAGVEVLKF SQVKEVKKTL SGLEVSMVTA VPGRLPVMTM IPDVDCLLWA IGRVPNTKDL SLNKLGIQTD DKGHIIVDEF QNTNVKGIYA VGDVCGKALL TPVAIAAGRK LAHRLFEYKE DSKLDYNNIP TVVFSHPPIG TVGLTEDEAI HKYGIENVKT YSTSFTPMYH AVTKRKTKCV MKMVCANKEE KVVGIHMQGL GCD