Immunogen sequence: SYLSDGPNEK IQAVIDSGVC RRLVELLMHN DYKVASPALR AVGNIVTGDD IQTQVILNCS ALPCLLHLLS SPKESIRKEA CWTISNITAG NRAQIQAVID ANIFPVLIEI LQKAEFRTRK EAAWAITNAT SGGTPEQIRY LVSLGCIKPL CDLLTVMDSK IVQVALNGLE NILRLGEQEG KRSGSGVNPY CGLIEEAYGL DKIEFLQSHE NQE