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<td><strong> CD63</strong></td>
<td> 16040-60</td> <td> αLIMP, MLA1, PTLGP40, gp55, granulophysin lysosomal-membrane-associated glycoprotein 3 (LAMP-2 integrin chain3), GPIa VLAmelanoma-2 α chainassociated antigen (ME491), neuroglandular antigen (NGA)</td> <td> B cellsPlatelets, monocytesendothelium, plateletsdegranulated neutrophils, megakaryocytes; neuronal, epithelialmonocytes, and endothelial cells; osteoclastsmacrophages endothelium</td> <td> Integrin that associates with CD29, binds collagen, laminin-1Not known</td>
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<td bgcolor="#cccccc"><strong> CD64</strong></td>
<td bgcolor="#cccccc"> 125, 30 72</td> <td bgcolor="#cccccc"> Fc&alphagamma;-3 integrin chain\RI, VLA-3 α chainFCRI</td> <td bgcolor="#cccccc"> B Monocytes, macrophages, bood and germinal-center dendritic cells, many adherent PMN activated by IFN-γ or G-CSF, early myeloid-lineage cells</td> <td bgcolor="#cccccc"> Integrin that associates with CD29, binds collagen, lamininPhagocytosis: receptor-mediated endocytosis of IgG-antigen complexes; antigen capture for presentation to T cells; antibody-5, fibronectin, entacin, invasindependent cellular cytotoxicity; mediator of release by some cells of cytokines and reactive oxygen intermediates</td>
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<td><strong> CD65</strong></td>
<td> 145</td> <td> α-4 integrin chain, VLA-4 α chain</td> <td> Many cell types, including T cells, B cells, monocytes, eosinophils, basophils, mast cells, thymocytes, NK cells, dendritic cells; not on neutrophils</td> <td> Cell adhesion molecule for attachment to cell syrface ligands VCAM-1 (α4β1 and α4β7) and MAdCAM-1(α4β7) and attachment to extracellular matrix proteins fibronectin (α4β1 and α4β7) and thrombospondin (α4β1), and for lymphocyte migration and homing; co-stimulatory molecule for T-cell activation</td>
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<td bgcolor="#cccccc"><strong> CD65s</strong></td>
<td bgcolor="#cccccc"> 135</td> <td bgcolor="#cccccc"> α-5 integrin chain, FNR α chain, VLA-5 α chain</td> <td bgcolor="#cccccc"> Many cell types, including memory T cells, monocytes, platelets</td> <td bgcolor="#cccccc"> Integrin that associates with CD29, binds fibronectin, invasin</td>
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<td><strong> CD66a</strong></td>
<td> 125, 25</td> <td> α-6 integrinchain, platelet gpI, VLA-6 α chain</td> <td> T cells, monocytes, platelets, megakaryocytes, trophoblasts</td> <td> Integrin that associates with CD29, binds laminin, invasin, merosine</td>
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<td bgcolor="#cccccc"><strong> CD66b</strong></td>
<td bgcolor="#cccccc">130 </td> <td bgcolor="#cccccc"> Intercellular molecule-3, ICAM-3</td> <td bgcolor="#cccccc"> Leukocytes of all lineages</td> <td bgcolor="#cccccc"> Co-stimulatory molecule in immune response; regulator of LFA-1/ICAM-1 and integrin-β-dependent adhesion</td>
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<td><strong> CD66c</strong></td>
<td> 125</td> <td> VNR-α chain, α V integrin chain, vitronsctin receptor; forms α-V integrin by association with CD61 </td> <td> Platelets, megakaryocytes</td> <td> Subunit of α-V integrin, which binds vitronsctin, von Willebrand factor, fibronectin, thrombospondin, and probably apoptotic cells</td>
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<td bgcolor="#cccccc"><strong> CD66d</strong></td>
<td bgcolor="#cccccc"> 25-29</td> <td bgcolor="#cccccc"> CAMPATH-1, HE5</td> <td bgcolor="#cccccc"> Thymocytes, lymphocytes, monocytes, macrophages, epithelial cells lining male reproductive tract</td> <td bgcolor="#cccccc"> Not known</td>
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<td><strong> CD66e</strong></td>
<td> 32-42</td> <td> MRC OX44</td> <td> Leukocytes </td> <td> Signal transduction; crosslinking promotes activation of human B cells</td>
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<td bgcolor="#cccccc"><strong> CD66f</strong></td>
<td bgcolor="#cccccc"> 90, 75-115</td> <td bgcolor="#cccccc"> Intercellular adhesion molecule-1 (ICAM-1)</td> <td bgcolor="#cccccc"> Activated endothelial cells, activated T cells, activated B cells, monocytes, endothelial cells</td> <td bgcolor="#cccccc"> Ligand for CD11a/CD18 or CD11b/CD18; receptor for rhinoviruses and for RBCs infected with malarial parasites</td>
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<td><strong> CD68</strong></td>
<td> 70, 55</td> <td> Decay accelerating factor (DAF)</td> <td> Most cells</td> <td> Protective barrier against inappropriate complement activation and deposition on plasma membranes</td>
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<td bgcolor="#cccccc"><strong> CD69</strong></td>
<td bgcolor="#cccccc"> 175-220</td> <td bgcolor="#cccccc"> Leu-19, NKH1, neural cell adhesion molecule (NCAM)</td> <td bgcolor="#cccccc">Human NK cellls, a subset of CD4+ and CD8+ T cells </td> <td bgcolor="#cccccc"> Not known for the immune system; adhesion molecule for cells of the nervous system</td>
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<td><strong> CD70</strong></td>
<td> </td>
<td> HNK-1, Leu-7; a carbohydrate antigen (oligosaccharide), component of many glycoproteins </td> <td> NK cells; subsets of T cells, B cells, and monocytes </td> <td> Not known </td>
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<td bgcolor="#cccccc"> <strong>CD71</strong></td>
<td bgcolor="#cccccc"> 55-70</td> <td bgcolor="#cccccc"> Lymphocyte function-associated antigen 3 (LFA-3) </td> <td bgcolor="#cccccc"> Many hematopoeitic and non-hematopoeitic celltypes </td> <td bgcolor="#cccccc"> Adhesion between killer T cells and target eclls, antigen-presenting cells and T cells, or thymocytes and thymic epithelial cells </td>
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<td><strong> CD72</strong></td>
<td> 18-25</td> <td> IF-5Ag, H19, HRF20, MACIF, MIRL, P-18 protectin </td> <td> Many hematopoeitic and non-hematopoeitic celltypes </td> <td> Inhibitor for mrmbrane attack complex (MAC) assembly, thus protecting cells from complement mediated lysis; signaling role (as a GPI-anchored molecule) in T-cell activation; possible role in cell adhesion</td>
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<td bgcolor="#cccccc"><strong> CD73</strong></td>
<td bgcolor="#cccccc"> </td>
<td bgcolor="#cccccc"> 9-O-acetyl-GD3; carbohydrate modification found on some gangliosides</td> <td bgcolor="#cccccc"> Subset of T cells, platelets, thymic epithelium, activated keratinocytes, synovial fibroblasts, glomeruli, smooth muscle cells, astrocytes </td> <td bgcolor="#cccccc"> Possible contributor to co-stimulatory/comitogenic signals for T cells </td>
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