Immunogen sequence: MAPPAPGPAS GGSGEVDELF DVKNAFYIGS YQQCINEAQR VKLSSPERDV ERDVFLYRAY LAQRKFGVVL DEIKPSSAPE LQAVRMFADY LAHESRRDSI VAELDREMSR SVDVTNTTFL LMAASIYLHD QNPDAALRAL HQGDSLECTA MTVQILLKLD RLDLARKELK RMQDLDEDAT LTQLATAWVS LATGGEKLQD AYYIFQEMAD KCS