Immunogen sequence: KLIRLWSKYN ADQIRRMMET FQQLITYKVI SNEFNSRNLV NDDDAIVAAS KCLKMVYYAN VVGGEVDTNH NEEDDEEPIP ESSELTLQEL LGEERRNKKG PRVDPLETEL GVKTLDCRKP LIPFEEFINE PLNEVLEMDK DYTFFKVETE NKFSFMTCPF ILNAVTKNLG LYYDNRIRMY SERRITVLYS LVQGQQLNPY LRLKVRRDHI IDD