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CD1 (cluster of differentiation 1) is 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. However their precise function is unknown. ==Types== CD1 glycoproteins can be classified primarily into two groups which differ in their lipid anchoring. * CD1a, CD1b and CD1c (group 1 CD1 molecules) are expressed on cells specialized for antigen presentation. * CD1d (group 2 CD1) is expressed in a wider variety of cells. CD1e is an intermediate form, expressed intracellularly, the role of which is currently unclear. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「CD1」の詳細全文を読む スポンサード リンク
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