Immunogen sequence: FVEIGKTLEE ILSRLQEEEQ ERDRKLQPTA RGLLEKAPGV KRLSSLDDKI PHKSPCPRRT IWLSRSQSDI FSRKPPRTVS VLDPYYRPRD GAARTPKVNP FSARQDLMGG KIKFFDLPSK SVISLVFDLD APGPGTMPLA DWQEPLAPPI RRWRSLPGSP EFLHQEACPF VGREESLSDG PPPRLSSLKY RVKEIPPFRA SALPAAQAHE AMD