Immunogen sequence: MAASKTQGAV ARMQEDRDGS CSTVGGVGYG DSKDCILEPL SLPESPGGTT TLEGSPSVPC IFCEEHFPVA EQDKLLKHMI IEHKIVIADV KLVADFQRYI LYWRKRFTEQ PITDFCSVIR INSTAPFEEQ ENYFLLCDVL PEDRILREEL QKQRLREILE QQQQERNDTN FHGVCMFCNE EFLGNRSVIL NHMAREHAFN IGLPDNIVNC NEF