Immunogen sequence: EAQAAAWLEA ARGARMVALE RGGCGRSSNR LARFADGTRA CVRYGINPEQ IQGEALSYYL ARLLGLQRHV PPLALARVEA RGAQWAQVQE ELRAAHWTEG SVVSLTRWLP NLTDVVVPAP WRSEDGRLRP LRDAGGELAN LSQAELVDLV QWTDLILFDY LTANFDRLVS NLFSLQWDPR VMQRATSNLH RGPGGALVFL DNEAGLVHGY RVA