Immunogen sequence: GGVPGAIPGG VPGGVFYPGA GLGALGGGAL GPGGKPLKPV PGGLAGAGLG AGLGAFPAVT FPGALVPGGV ADAAAAYKAA KAGAGLGGVP GVGGLGVSAG AVVPQPGAGV KPGKVPGVGL PGVYPGGVLP GARFPGVGVL PGVPTGAGVK PKAPGVGGAF AGIPGVGPFG GPQP. This gene encodes a protein that is one o