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CD23 is a 45 kDa glycoprotein which is present on a subpopulation of freshly isolated peripheral blood and tonsil B cells and strongly expressed on EBV-transformed B lymphoblasts. The CD23 molecule is identical to the low affinity IgE receptor found on B cells. Expression of CD23 has been detected in neoplastic cells from cases of B cell chronic lymphocyctic leukaemia and some cases of centroblastic/centrocytic lymphoma. CD23 is present on a subpopulation of freshly isolated peripheral blood and tonsil B cells and strongly expressed on EBV-transformed B lymphoblasts. Functionally, CD23 is involved in B cell growth and differentiation, and IgE production. Further, CD23 has a soluble form that is a potent mitogenic factor. Diseases associated with CD23 dysfunction include chronic conjunctivitis and chronic lymphocytic leukemia.
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Protein Aliases: CD23; FC epsilon RII; Fc-epsilon-RII; FceRII; Low affinity immunoglobulin epsilon Fc receptor; low-affinity IgE receptor; Lymphocyte IgE receptor
Gene Aliases: CD23; Fce2; Fcer2; Fcer2a; Ly-42
UniProt ID: (Mouse) P20693
Entrez Gene ID: (Mouse) 14128
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