Anti-Lewis X antibodies are readily available from several suppliers. Lewis X is a reported synonym of the human protein 'fucosyltransferase 4', encoded by the gene FUT4. The full protein is reported to be 530 amino acid residues in length. It is listed to be a member of the Glycosyltransferase 10 family. The Lewis X antigen is a documented cancer, pluripotent, and neural stem cell marker. Consult the antibody supplier page for essential details, including target immunogenicity and tested applications.