Immunogen sequence: MVGQLSEGAI AAIMQKGDTN IKPILQVINI RPITTGNSPP RYRLLMSDGL NTLSSFMLAT QLNPLVEEEQ LSSNCVCQIH RFIVNTLKDG RRVVILMELE VLKSAEAVGV KIGNPVPYNE GLGQPQVAPP APAASPAASS RPQPQNGSSG MGSTVSKAYG ASKTFGKAAG PSLSHTSGGT QSKVVPIASL TPYQSKWTIC ARVTNKSQIR TWS