<td>&nbsp;Ceramide-dodecasaccharide, VIM-2; glycolipid&nbsp;</td> <td>&nbsp;Myeloid cells&nbsp;</td> <td>&nbsp;Not known&nbsp;</td>

<td bgcolor="#cccccc">&nbsp;Sialylated-CD65, VIM-2; carbohydrate&nbsp;</td> <td bgcolor="#cccccc">&nbsp;Granulocytes, monocytes</td> <td bgcolor="#cccccc">&nbsp;Possible involvement with phagocytosis and Ca 2+ influx&nbsp;</td>

<td>&nbsp;160-180</td> <td>&nbsp;NCA-160, biliary glycoprotein (BGP)&nbsp;</td> <td>&nbsp;Granulocytes, epithelial cells</td> <td>&nbsp;Adhesion molecule; receptor for <em>Neisseria gonorrheae</em> and <em>N. meningitidis</em>; trigger of neutrophil activation&nbsp;</td>

<td bgcolor="#cccccc">&nbsp;95-100</td> <td bgcolor="#cccccc">&nbsp;CD67, CGM6, NCA-95&nbsp;</td> <td bgcolor="#cccccc">&nbsp;Granulocytes</td> <td bgcolor="#cccccc">&nbsp;Adhesion molecule; trigger of neutrophil activation&nbsp;</td>

<td>&nbsp;90</td> <td>&nbsp;NCA, NCA-50/90&nbsp;</td> <td>&nbsp;Granulocytes, epithelial cells&nbsp;</td> <td>&nbsp;Adhesion molecule; trigger of neutrophil activation&nbsp;</td>

<td bgcolor="#cccccc">&nbsp;30</td> <td bgcolor="#cccccc">&nbsp;CGM1&nbsp;</td> <td bgcolor="#cccccc">&nbsp;Granulocytes</td> <td bgcolor="#cccccc">&nbsp;Unclear; receptor for <em>Neisseria gonorrheae and N. meningitidis</em></td>

<td>&nbsp;180-200</td> <td>&nbsp;Carcinoembryonic antigen (CEA)&nbsp;</td> <td>&nbsp;Epithelial cells</td> <td>&nbsp;Unclear; possible adhesion molecule&nbsp;</td>

<td bgcolor="#cccccc">&nbsp;54-72</td> <td bgcolor="#cccccc">&nbsp;Pregnancy-specific b1 glycoprotein, SP-1, pregnancy-specific glycoprotein (PSG)&nbsp;</td> <td bgcolor="#cccccc">&nbsp;Fetal liver; produced in placenta and released&nbsp;</td> <td bgcolor="#cccccc">&nbsp;Unclear;&nbsp;possible involvement in immune regulation and protection of fetus from maternal immune system; necessary for successful pregnancy&nbsp;</td>

<td>&nbsp;110</td> <td>&nbsp;gp110, macrosialin&nbsp;</td> <td>&nbsp;Monocytes, macrophages, dendritic cells, neutrophils, basophils, mast cells, myeloid progenitor cells, subset of CD34+ hematopoeitic progenitor cells, activated T cells, some peropheral-blood B cells&nbsp;</td> <td>&nbsp;Not known&nbsp;</td>

<td bgcolor="#cccccc">&nbsp;60</td> <td bgcolor="#cccccc">&nbsp;Activation-inducer molecule (AIM), EA1, MLR3, gp34/28, very early activation (VEA)&nbsp;</td> <td bgcolor="#cccccc">&nbsp;Activated leukocytes, inducing T cells, thymocytes, B cells, NK cells, neutrophils, eosinophils, and Langerhans cells; subset of mature thymocytes, germinal-center mantle B cells, some CD4+ germinal-center T cells&nbsp;</td> <td bgcolor="#cccccc">&nbsp;Involvement in early events of lymphocyte, monocyte, and platelet activation: promotes Ca2+ influx, synthesis of cytokines and their receptors, induction of c-myc and c-fos proto-oncogene expression; role in promoting lysis mediated by activated NK cells&nbsp;</td>

<td>&nbsp;75, 95, 170&nbsp;</td> <td>&nbsp;CD27-ligand, Ki24 antigen&nbsp;</td> <td>&nbsp;Activated T and B cells and macrophages&nbsp;</td> <td>&nbsp;Ligand for CD27; possible role in co-stimulation of B and T cells&nbsp;</td>

<td bgcolor="#cccccc">&nbsp;190</td> <td bgcolor="#cccccc">&nbsp;T9, transferrin receptor&nbsp;&nbsp;</td> <td bgcolor="#cccccc">&nbsp;All proliferating cells&nbsp;</td> <td bgcolor="#cccccc">&nbsp;Iron uptake: binds ferrotransferrin at neutral pH and internalizes complex to acidic endosomal compartment, where tron is released&nbsp;</td>

<td>&nbsp;42</td> <td>&nbsp;Ly-19.2, Ly-32.2, Lyb-2</td> <td>&nbsp;B cells (except plasma cells)&nbsp;&nbsp;</td> <td>&nbsp;Not known&nbsp;</td>

<td bgcolor="#cccccc">&nbsp;69, 70, 72</td> <td bgcolor="#cccccc">&nbsp;Ecto-5', nucleotidase&nbsp;</td> <td bgcolor="#cccccc">&nbsp;Subpopulations of T and B cells, many peripheral-blood B cells, follicular dendritic cells, epithelial cells, endothelial cells&nbsp;</td> <td bgcolor="#cccccc">&nbsp;Dephosphorylation of purine and pyrimidine ribo-and deoxyribonucleoside monophosphates to their corresponding nucleosides&nbsp;</td>

<td bgcolor="#cccccc"><strong>&nbsp;CD74</strong></td> <td bgcolor="#cccccc">&nbsp;33, 35, 41</td> <td bgcolor="#cccccc">&nbsp;Class Ⅱ-specific chaperone, Li, invariant chain</td> <td bgcolor="#cccccc">&nbsp;B cells, activated T cells, macrophages, activated endothelial and epithelial cells&nbsp;</td> <td bgcolor="#cccccc">&nbsp;Intracellular sorting of MHC class Ⅱ molecules&nbsp;</td>

<td bgcolor="#cccccc">&nbsp;B cells, Subpopulation of peripheral-blood T cells, erythrocytes</td> <td bgcolor="#cccccc">&nbsp;Cell adhesion; ligand for CD22&nbsp;</td>