Immunogen sequence: NHVFNALKQH AYSEERRSAR LHEKKEHSTA EKAVDPKTRL LMYKMVNSGM LETITGCIST GKESVVFHAY GGSMEDEKED SKVIPTECAI KVFKTTLNEF KNRDKYIKDD FRFKDRFSKL NPRKIIRMWA EKEMHNLARM QRAGIPCPTV VLLKKHILVM SFIGHDQVPA PKLKEVKLNS EEMKEAYYQT LHLMRQLYHE CTLVHADLSE YNM