Immunogen sequence: KTEINCRRPD DGNLFPLLEG QDSGNSNGNA SINITDISRN ITSIHIENWR SLHTLNAVDM ELYTGLQKLT IKNSGLRSIQ PRAFAKNPHL RYINLSSNRL TTLSWQLFQT LSLRELQLEQ NFFNCSCDIR WMQLWQEQGE AKLNSQNLYC INADGSQLPL FRMNISQCDL PEISVSHVNL TVREGDNAVI TCNGSGSPLP DVDWIVTGLQ SIN