Immunogen sequence: SKPVDENHQQ DGDEDSLVSH FYTNPIAKPI PQTPESAGNK HSNSNSVDDT IVALNMRAAL RNGLEGSSEE TSFHDESLQD DREEIENNSY HMHPAGIILT KVGYYTIPSM DDLAKITNEK GECIVSDFTI GRKGYGSIYF EGDVNLTNLN LDDIVHIRRK EVVVYLDDNQ KPPVGEGLNR KAEVTLDGVW PTDKTSRCLI KSPDRLADIN YEG