Immunogen sequence: MSEQSCQMSE LRLLLLGKCR SGKSATGNAI LGKHVFKSKF SDQTVIKMCQ RESWVLRERK VVVIDTPDLF SSIACAEDKQ RNIQHCLELS APSLHALLLV IAIGHFTRED EETAKGIQQV FGAEARRHII IVFTRKDDLG DDLLQDFIEK NKPLKQLVQD YEGRYCIFNN KTNSKDEQIT QVLELLRKVE SLVNTNGGPY HVNFKTEGSR FQD