Immunogen sequence: MPSASCDTLL DDIEDIVSQE DSKPQDRHFV RKDVVPKVRR RNTQKYLQEE ENSPPSDSTI PGIQKIWIRT WGCSHNNSDG EYMAGQLAAY GYKITENASD ADLWLLNSCT VKNPAEDHFR NSIKKAQEEN KKIVLAGCVP QAQPRQDYLK GLSIIGVQQI DRVVEVVEET IKGHSVRLLG QKKDNGRRLG GARLDLPKIR KNPLIEIISI NTG