Immunogen sequence: MPAVLGFEGS ANKIGVGVVR DGKVLANPRR TYVTPPGTGF LPGDTARHHR AVILDLLQEA LTESGLTSQD IDCIAYTKGP GMGAPLVSVA VVARTVAQLW NKPLVGVNHC IGHIEMGRLI TGATSPTVLY VSGGNTQVIA YSEHRYRIFG ETIDIAVGNC LDRFARVLKI SNDPSPGYNI EQMAKRGKKL VELPYTVKGM DVSFSGILSF IED