Immunogen sequence: IHGWDSDSGT AIFLKPWSKG NFSDKEVAEL EEIFRVYIFG FAREVQDFAG DFQMKYPFEI QGIAGCELHS GGAIVSFLRG ALGGLDFLSV KNASCVPSPE GGSRAQKFCA LIIQYQGIME TVRILLYETC PRYLLGVLNA GKAD. This gene encodes a member of the CD1 family of transmembrane glycoprotein