Immunogen sequence: LHPALSRTNL KAEAETLVSR VLFEGTRAVG VEYVKNGQSH RAYASKEVIL SGGAINSPQL LMLSGIGNAD DLKKLGIPVV CHLPGVGQNL QDHLEIYIQQ ACTRPITLHS AQKPLRKVCI GLEWLWKFTG EGATAHLETG GFIRSQPGVP HPDIQFHFLP SQVIDHGRVP TQQEAYQVHV GPMRGTSVGW LKLRSANPQD HPVIQPNYLS TET