Immunogen sequence: LACLEYYHYD PEQVINNILE ERLAPTLSQL DRNLDREMKP DPTPLLTSRH NVFQNDEFDV FSRDSVDLSR VHKGKSTRKE ENTRSLLNDK RAVAAQRQRY EQYSVVVEEV PLQPGESLPY HSVYYEDEYD DTYDGNQVGA NDADSDDELI SRRPFTIPQV LRTKVPREGQ EEDDDDEEDD ADEEAPKPDH FVQDPAVLRE KAEARRMAFL AKK