Immunogen sequence: SGAEIEDDDE EGFDDEDEFD DEHDDDLDTE DNELEELEER AEARKKTTEK QSAAALCVGV GSFADPDDLP GLAHFLEHMV FMGSLKYPDE NGFDAFLKKH GGSDNASTDC ERTVFQFDVQ RKYFKEALDR WAQFFIHPLM IRDAIDREVE AVDSEYQLAR PSDANRKEML FGSLARPGHP MGKFFWGNAE TLKHEPRKNN IDTHARLREF WMR