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Human CD63  Protein

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CD63
Expression host: Human Cells  
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CD63 Related Pathways

    CD63 Related Protein, Antibody, cDNA Gene, and ELISA Kits

    CD63 Related Protein, Antibody, cDNA Gene, and ELISA Kits

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    CD63 Summary & Protein Information

    CD63 Background

    Gene Summary: The protein encoded by this CD63 gene is a member of the transmembrane 4 superfamily, also known as the tetraspanin family. Most of these members are cell-surface proteins that are characterized by the presence of four hydrophobic domains. The proteins mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. CD63 is a cell surface glycoprotein that is known to complex with integrins. CD63 may function as a blood platelet activation marker. Deficiency of CD63 is associated with Hermansky-Pudlak syndrome. Also this gene has been associated with tumor progression. Alternative splicing results in multiple transcript variants encoding different protein isoforms.
    General information above from NCBI
    Subunit structure: Interacts with TIMP1 and ITGB1 and recruits TIMP1 to ITGB1. Interacts with CD9. Identified in a complex with CD9 and ITGB3. Interacts with PMEL. Interacts with KDR/VEGFR2; identified in a complex with ITGB1 and KDR/VEGFR2 and is required to recruit KDR to ITGB1 complexes. {ECO:0000269|PubMed:16917503, ECO:0000269|PubMed:19640571, ECO:0000269|PubMed:21962903, ECO:0000269|PubMed:23632027, ECO:0000269|PubMed:24635319}.
    Subcellular location: Cell membrane; Multi-pass membrane protein. Lysosome membrane; Multi-pass membrane protein. Late endosome membrane; Multi-pass membrane protein. Endosome, multivesicular body. Melanosome. Note=Also found in Weibel-Palade bodies of endothelial cells. Located in platelet dense granules. Detected in a subset of pre-melanosomes. Detected on intralumenal vesicles (ILVs) within multivesicular bodies.
    Tissue specificity: Detected in platelets (at protein level). Dysplastic nevi, radial growth phase primary melanomas, hematopoietic cells, tissue macrophages. {ECO:0000269|PubMed:19640571}.
    Post-translational: Palmitoylated at a low, basal level in unstimulated platelets. The level of palmitoylation increases when platelets are activated by thrombin (in vitro). {ECO:0000269|PubMed:19640571}.
    Sequence similarity: Belongs to the tetraspanin (TM4SF) family. {ECO:0000305}.
    General information above from UniProt

    The cluster of differentiation (CD) system is commonly used as cell markers in immunophynotyping. Different kinds of cells in the immune system can be identified through the surface CD molecules which associating with the immune function of the cell. There are more than 320 CD unique clusters and subclusters have been identified. Some of the CD molecules serve as receptors or ligands important to the cell through initiating a signal cascade which then alter the behavior of the cell. Some CD proteins do not take part in cell signal process but have other functions such as cell adhesion. Cluster of differentiation 63 (CD63) is a member of the CD family and the transmembrane 4 superfamily,also known as the tetraspanin family. CD63 is a cellular surface glycoprotein characterized by the presence of four bydrophobic domains. CD63 had functions in mediating signal transduction processes and then regulate variety of cellular processes such as cell proliferation, activation and motility. It has reported that CD63 protein associated with tumor progression and served as a blood platlet activation marker and the deficiency of this protein may be associated with Hermansky-Pudlak syndrome.

    CD63 Alternative Name

    MLA1,ME491,LAMP-3,OMA81H,TSPAN30, [homo-sapiens]
    CD63,LAMP-3,ME491,MLA1,OMA81H,TSPAN30, [human]
    C75951,Cd63,ME491,MGC103180,MGC107286,Tspan30, [mouse]
    ME491,C75951,Tspan30, [mus-musculus]

    CD63 Related Studies

  • Zola H, et al. (2007) CD molecules 2006-human cell differentiation molecules. J Immunol Methods. 318 (1-2): 1-5.
  • Ho IC, et al. (2009) GATA3 and the T-cell lineage: essential functions before and after T-helper-2-cell differentiation. Nat Rev Immunol. 9 (2): 125-35.
  • Matesanz-Isabel J, et al. (2011) New B-cell CD molecules. Immunology Letters.134 (2): 104-12.
  • Radford KJ, et al. (1996) Associates with Transmembrane 4 Superfamily Members, CD9 and CD81, and with beta 1 Integrins in Human Melanoma. Biochemical Biophysical Research Communications. 222(1): 13-18.
  • Metzelaar MJ, et al. (1991) CD63 antigen, A novel lysosomal membrane glycoprotein, cloned by a screening procedure for intracellular antigens in eukaryotic cells. The journal of biological chemistry. 266: 3239-45.
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