Immunogen sequence: MRDPGAAAPL SSLGLCALVL ALLGALSAGA GAQPYHGEKG ISVPDHGFCQ PISIPLCTDI AYNQTILPNL LGHTNQEDAG LEVHQFYPLV KVQCSPELRF FLCSMYAPVC TVLDQAIPPC RSLCERARQG CEALMNKFGF QWPERLRCEN FPVHGAGEIC VGQNTSDGSG GPGGGPTAYP TAPYLPDLPF TALPPGASDG RGRPAFPFSC PRQ