Immunogen sequence: GKQNSKLAPE VMEDLVKSTE FNEHELKQWY KGFLKDCPSG RLNLEEFQQL YVKFFPYGDA SKFAQHAFRT FDKNGDGTID FREFICALSI TSRGSFEQKL NWAFNMYDLD GDGKITRVEM LEIIEAIYKM VGTVIMMKMN EDGLTPEQRV DKIFSKMDKN KDDQITLDEF KEAAKSDPSI VLLLQCDIQK. This gene is a member of