Immunogen sequence: MRGDRGRGRG GRFGSRGGPG GGFRPFVPHI PFDFYLCEMA FPRVKPAPDE TSFSEALLKR NQDLAPNSAE QASILSLVTK INNVIDNLIV APGTFEVQIE EVRQVGSYKK GTMTTGHNVA DLVVILKILP TLEAVAALGN KVVESLRAQD PSEVLTMLTN ETGFEISSSD ATVKILITTV PPNLRKLDPE LHLDIKVLQS ALAAIRHARW FEE