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<td><strong> CDw76</strong></td>
<td> </td>
<td> Carbohydrate antigen</td> <td> B cells, subpopulation of T cells </td> <td> Not known </td>
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<td bgcolor="#cccccc"><strong> CD77</strong></td>
<td bgcolor="#cccccc"> </td>
<td bgcolor="#cccccc"> Pk blood group antigen, Burkitt's lymphoma antigen, (BLA), ceramide trihexoside (CTH), globotriaosylceramide (Gb3); sphingolipid antigen </td> <td bgcolor="#cccccc"> Germinal-center B cells </td> <td bgcolor="#cccccc"> Not known </td>
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<td><strong> CD79a</strong></td>
<td> 40-45</td> <td> Ig-α, MB1 </td> <td> B cells </td> <td> Component of B-cell antigen receptor analogous to CD3, required for cell-surface expression and signal transduction </td>
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<td bgcolor="#cccccc"><strong> CD79b</strong></td>
<td bgcolor="#cccccc"> 37</td> <td bgcolor="#cccccc"> B29, Ig-β </td> <td bgcolor="#cccccc"> B cells </td> <td bgcolor="#cccccc"> Component of B-cell antigen receptor analogous to CE3, required for cell-surface expression and signal transduction </td>
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<td><strong> CD80</strong></td>
<td> 60</td> <td> B7, B7.1, BB1 </td> <td> Activated B and T cells; macrophages </td> <td> Co-stimulation of T-cell activation with CD86 </td>
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<td bgcolor="#cccccc"><strong> CD81</strong></td>
<td bgcolor="#cccccc"> 26</td> <td bgcolor="#cccccc"> Target for anti-proliferative antigen-1 (TAPA-1) </td> <td bgcolor="#cccccc"> Broadly expressed on hematopoeitic cells; expressed by endothelial and epithelial cells; absent from erythrocytes, platelets, and neutrophils </td> <td bgcolor="#cccccc"> Member of CD19/CD21/Leu-13 signal-transduction complex, the B-cell co-receptor</td>
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<td><strong> CD82</strong></td>
<td> 45-90</td> <td> 4F9, C33, IA4, KAI1, R2 </td> <td> Activated/differentiated hematopoeitic cells </td> <td> Signal transduction: may induce T-cell spreading and pseudopod formation, modulate T-cell proliferation, and provide co-stimulatory signals for cytokine production; possible role in activation of monocytes </td>
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<td bgcolor="#cccccc"><strong> CD83</strong></td>
<td bgcolor="#cccccc"> 43</td> <td bgcolor="#cccccc"> HB15 </td> <td bgcolor="#cccccc"> Dendritic cells, B cells, Langerhans cells </td> <td bgcolor="#cccccc"> Not known </td>
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<td><strong> CD84</strong></td>
<td> 73</td> <td> GR6 </td> <td> Monocytes, platelets, circulating B cells </td> <td> Not known </td>
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<td bgcolor="#cccccc"><strong> CD85</strong></td>
<td bgcolor="#cccccc"> 110</td> <td bgcolor="#cccccc"> GR4 </td> <td bgcolor="#cccccc"> Plasma cells, mantle-zone and germinal-center B cells, subpopulation of peripheral-blood NK cells </td> <td bgcolor="#cccccc"> Possible role in T-cell activation in peripheral blood </td>
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<td><strong> CD86</strong></td>
<td> 80</td> <td> B7.2 </td> <td> Dendritic cells, memory B cells, germinal-center B cells, monocytes </td> <td> Major T cell costimulatory molecule, interacting with CD28 (stimulatory) and CTLA4 (inhibitory) </td>
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<td bgcolor="#cccccc"><strong> CD87</strong></td>
<td bgcolor="#cccccc"> 41-68, 35-39</td> <td bgcolor="#cccccc"> Urokinase plasminogen activator receptor (uPAR) </td> <td bgcolor="#cccccc"> T cells, NK cells, monocytes, neutrophils; non-hematopoeitic cells such as vascular endothelial cells, fibroblasts, smooth muscle cells, keratinocytes, placental trophoblasts, hepatocytes </td> <td bgcolor="#cccccc"> Receptor for uPA, which can convert plasminogen to plasmin; possible role in β2 integrin-dependent adherence and chemotaxis</td>
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<td><strong> CD88</strong></td>
<td> 43</td> <td> C5a receptor, C5aR</td> <td> Granulocytes, monocytes, dendritic cells </td> <td> C5a-mediated inflammation; activation of granulocytes </td>
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<td bgcolor="#cccccc"><strong> CD89</strong></td>
<td bgcolor="#cccccc"> 45-70, 55-75, 70-100, 50-65</td> <td bgcolor="#cccccc"> Fcα-receptor R (Fcα-R), IgA Fc receptor, IgA receptor</td> <td bgcolor="#cccccc"> Myeloid-lineage cells from promyelocytes to neutrophils and from promonocyte to monocytes; activated eosinophils, alveolar and splenic macrophages </td> <td bgcolor="#cccccc"> Induction of phagocytosis, degranulation, respiratory burst, killing of microorganisms </td>
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<td><strong> CD90</strong></td>
<td> 25-35</td> <td> Thy-1 </td> <td> Hematopoeitic stem cells, thymocytes, peripheral T cells, human node HEV endothelium </td> <td> Possible involvement in lymphocyte co-stimulation; possible inhibition of proliferation and differentiation of hematopoeitic stem cells </td>
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