Immunogen sequence: LPHTLLSRFD LIFLMLDPQD EAYDRRLAHH LVALYYQSEE QAEEELLDMA VLKDYIAYAH STIMPRLSEE ASQALIEAYV DMRKIGSSRG MVSAYPRQLE SLIRLAEAHA KVRLSNKVEA IDVEEAKRLH REALKQSAT. The protein encoded by this gene is one of the highly conserved mini-chromosome