Immunogen sequence: TSLGRPEEEE DELAHRCSSF MAPPVTDLGE LRRRPGDMKT KMELLILETQ AQVCQALAQV DGGANFSVDR WERKEGGGGI SCVLQDGCVF EKAGVSISVV HGNLSEEAAK QMRSRGKVLK TKDGKLPFCA MGVSSVIHPK NPHAPTIHFN YRYFEVEEAD GNKQWWFGGG CDLTPTYLNQ EDAVHFHRTL KEACDQHGPD LYPKFKKWCD DYF