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Invitrogen
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CD1c is a member of the CD1 family of transmembrane glycoproteins, which are structurally related to major histocompatibility complex (MHC) proteins and form heterodimers with beta-2-microglobulin. This family of proteins is involved in the presentation of lipid and glycolipid antigens, both of self and microbial origin, to T cells during the adaptive immune response. CD1c is expressed on some circulating and marginal zone B cells, as well as in lymph nodes and germinal centers. It plays a crucial role in presenting lipid antigens, such as microbial fatty acids, to effector T cells. The protein encoded by the CD1c gene localizes to late endosomes and lysosomes, utilizing a tyrosine-based motif in its cytoplasmic tail for targeting. Vesicular acidification is required for CD1c to bind lipid antigens effectively. The human genome contains five CD1 family genes organized in a cluster on chromosome 1, with each member differing in cellular localization and specificity for particular lipid ligands. CD1c undergoes alternative splicing, resulting in three different isoforms: soluble, membrane-bound, and cytoplasmic/soluble isoforms, highlighting its functional diversity in immune processes.
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Protein Aliases: CD1c; CD1C antigen, c polypeptide; cortical thymocyte antigen CD1C; differentiation antigen CD1-alpha-3; RP11-101J8.3; T-cell surface glycoprotein CD1c
Gene Aliases: BDCA1; CD1; CD1A; CD1C; R7
UniProt ID: (Human) P29017
Entrez Gene ID: (Human) 911
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