CD1 Glycoprotein

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** A family of glycoproteins expressed on the surface of various human antigen-presenting cells. They are related to the class I MHC molecules, and are involved in the presentation of lipid antigens to T-cells. The family is separated into group 1, expressed on cells specialized for antigen presentation, and group 2, expressed on a wider variety of cells.

**Synonyms:** - CD1 - Differentiation Antigen CD1-Alpha-3