Immunogen sequence: FQDIQRGVTS AVNIMHSSLQ QGKFDTKGIE STDEAKMSFL VTLNNVEVCS ENISTLKKTL ESDCTKLFSQ GIGGEQAQAK FDSCLSDLAA VSNKFRDLLQ EGLTELNSTA IKPQVQPWIN SFFSVSHNIE EEEFNDYEAN DPWVQQFILN LEQQMAEFKA SLSPVIYDSL TGLMTSLVAV ELEKVVLKST FNRLGGLQFD KELRSLIAYL TTV