Immunogen sequence: DLVVVLVDVS DKWTRNQLSP QLLRCLTKYS QIPSVLVMNK VDCLKQKSVL LELTAALTEG VVNGKKLKMR QAFHSHPGTH CPSPAVKDPN TQSVGNPQRI GWPHFKEIFM LSALSQEDVK TLKQYLLTQA QPGPWEYHSA VLTSQTPEEI CANIIREKLL EHLPQEVPYN VQQKTAVWEE GPGGELVIQQ KLLVPKESYV KLLIGPKGHV ISQ