PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10631954-2 1999 All four of the known human CD1 proteins (CD1a, CD1b, CD1c and CD1d) as well as murine CD1d have now been shown to mediate T-cell recognition of lipid or glycolipid antigens. Glycolipids 154-164 CD1c molecule Homo sapiens 54-58