Immunogen sequence: MSEREVSTAP AGTDMPAAKK QKLSSDENSN PDLSGDENDD AVSIESGTNT ERPDTPTNTP NAPGRKSWGK GKWKSKKCKY SFKCVNSLKE DHNQPLFGVQ FNWHSKEGDP LVFATVGSNR VTLYECHSQG EIRLLQSYVD ADADENFYTC AWTYDSNTSH PLLAVAGSRG IIRIINPITM QCIKHYVGHG NAINELKFHP RDPNLLLSVS KDH