金山科研平台，产品价格货期咨询微信：jinshanbio Molecule Information: CD1a Long Name: T Cell Surface Glycoprotein CD1a Aliases: CD1a; FCB6; HTA1; R4; T6 Entrez Gene IDs: 909 (Human) Background: CD1a Cluster of Differentiation 1a (CD1a) is a transmembrane glycoprotein in the CD1 family of MHC-like molecules. It is expressed by most mammals but not by mice or rats. Human CD1a is a 311 amino acid protein with a predicted molecular mass of 49 kDa. It binds to lipid and glycolipid antigens and presents them to T cells. Antigen-presenting cells, Langerhans cells, and thymocytes express CD1a, where it traffics between endosomes and plasma membrane lipid rafts. Heterodimerization with beta-2-Microglobulin is required for CD1a membrane trafficking, and CD1a binding to exogenous lipids results in CD1a protein stability. The activation of thymus-localized T cells during the development of Graves’ disease and Hashimoto’s thyroiditis may be initiated by CD1a expressed by CD83+ dendritic cells.