CD23/Fc epsilon RII Antibody (SP23) Summary
Recombinant fragment, corresponding to amino acids 48-248 of Human CD23.
This antibody recognizes CD23, a 45kDa glycoprotein which is present on a subpopulation of freshly isolated peripheral blood and tonsil B cells. It is 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 leukemia and some cases of centroblastic/centrocytic lymphoma. This antibody cross reacts with Human.
Tissue culture supernatant
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Packaging, Storage & Formulations
Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
0.1% Sodium Azide
Tissue culture supernatant
IHC-P: 1/100. Retrieve antigens with 70% Formic acid for 10-30 minutes at room temperature before commencing with IHC staining protocol.Not tested in other applications.Optimal dilutions/concentrations should be determined by the end user.
Cross-reacts with Human.Not yet tested in other species.
Alternate Names for CD23/Fc epsilon RII Antibody (SP23)
- CD23CD23 antigen
- CLEC4JC-type lectin domain family 4 member J
- C-type lectin domain family 4, member J
- Fc epsilon RII
- Fc fragment of IgE, low affinity II, receptor for (CD23)
- FCE2Fc fragment of IgE, low affinity II, receptor for (CD23A)
- Immunoglobulin E-binding factor
- low affinity immunoglobulin epsilon Fc receptor
- Lymphocyte IgE receptor
The CD23 antigen is the low affinity IgE Fc receptor, which is a 49 kDa protein with 38 and 28 kDa fragments. It is expressed on most mature, conventional B cells (but not on peritoneal CD5+ B cells), and can also be found on the surface of T cells, macrophages, platelets and EBV transformed B lymphoblasts. Expression of CD23 has been detected in neoplastic cells from cases of B cell chronic Lymphocytic leukemia. CD23 is expressed by B cells in the follicular mantle but not by proliferating germinal centre cells. CD23 is also expressed by eosinophils. CD23 is distinct from the high affinity IgE receptors found on basophils and mast cells, which mediate allergic reactions. The low affinity receptors are thought to play a role in isotype specific immunoregulation. The regulation of CD23 surface expression appears to be integral with the complex IgE system, which involves interactions of cells, cytokines, antibodies and regulatory factors. CD23 has been described as a
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed
for 1 year from date of receipt.
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