Immunogen sequence: MPLLTLPQTR QRAKNIYDIL PWRQEDLGRH ESRSMRIFST ESLLSRNSES PEHVPSQAGN AFQEHTAHIH ATEYAVGIYD NAMVPQMCGN LTPSAHCINV RASRDCASIS SEDSHDYVNV PTAEEIAETL ASTKSPSRNL FVLPSTQKLE FTEERDEGCG DAGDCTSLYS PGAEDSDSLS NGEGSSQISN DYVNMTGLDL SAIQERQLWV AFQ