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CD23 (Fc Epsilon RII) Antibody [MSVA-023M]

In Stock
Catalog Number Formulation Size Price
2208-MSM26-P0
Purified Ab with BSA and Azide
20ug
$324.50
2208-MSM26-P1
Purified Ab with BSA and Azide
100ug
$654.50
Flat Rate Domestic: $75 | Orders outside the US - Contact Us for Order Information | Ships next business day

Applications & Dilutions

Applications Tested Dillution Protocol Note
Immunohistochemistry (IHC)
1:100-1:200
Manual Protocol: Freshly cut sections should be used (less than 10 days between cutting and staining). Heat-induced antigen retrieval for 5 minutes in an autoclave at 121°C in pH 7.8 Target Retrieval Solution buffer. Apply the antibody at a dilution of 1:150 at 37°C for 60 minutes. Visualization of bound antibody by the EnVision Kit (Dako, Agilent) according to the manufacturer’s directions.

Summary

CD23 (FCE2) is a type II integral membrane glycoprotein that is expressed on mature B cells, monocytes, eosinophils, platelets and dendritic cells. CD23 is a low affinity IgE receptor that mediates IgE-dependent cytotoxicity and phagocytosis by macrophages and eosinophils. CD23 associates as an oligomer where cooperative binding of at least two lectin domains is required for high affinity IgE binding to CD23. It may play a role in antigen presentation by B cells by interacting with CD40. CD23 has been shown to be associated with the Fyn tyrosine kinase. The truncated molecule can be secreted, then function as a potent mitogenic growth factor. CD23 is expressed on a subpopulation of peripheral blood cells, B-lymphocytes and on EBV transformed B lymphoblastoid cell lines. CD23 is also detected in neoplastic cells from cases of B cell chronic lymphocytic leukemia and some cases on centroblastic/centrocytic lymphoma.

Product Properties & Targets

Antibody Type
Host
Mouse
Applications
Species Reactivity
Isotype / Light Chain
IgG1 / Kappa
Cellular Localization
Cell membrane, Secreted
Gene Name
Positive Control
Tonsil: The follicular dendritic cells of the germinal centres should show a strong CD23 immunostaining while the majority of lymphocytes in the mantle zone of the follicles should show an at least weak staining.
Immunogen
Recombinant fragment (around aa 48-321) of human FCER2/CD23 protein (exact sequence is proprietary)
Alternate Names
Low affinity immunoglobulin epsilon Fc receptor, BLAST-2, C-type lectin domain family 4 member J, Fc-epsilon-RII, Immunoglobulin E-binding factor, Lymphocyte IgE receptor, BLAST-2; C-type lectin domain family 4, member J; Fc fragment of IgE low affinity II receptor; Fc-epsilon-RII; FCER2; FCER2A; FceRII; IgE-binding factor (IGEBF); Immunoglobulin E receptor, low affinity II; Lymphocyte IgE receptor

Database Links

Entrez Gene ID
SwissProt

Additional Information

Clone
MSVA-023M
Chromosome Location
19p13.3
Mol. Weight of Antigen
37kDa (soluble form); 45kDa (membrane-bound form)

Functions

  • Low-affinity receptor for immunoglobulin E (IgE) and CR2/CD21. Has essential roles in the regulation of IgE production and in the differentiation of B-cells (it is a B-cell-specific antigen).

Key References

  • Kaiserlian D,et al. Intestinal epithelial cells express the CD23/FceRII molecule:enhanced expression in enteropathies. Immunology.80:90-95(1993).

Storage & Stability

Antibody with azide - store at 2 to 8 °C. Antibody without azide - store at -20 to -80 °C. Antibody is stable for 24 months. Non-hazardous. No MSDS required.

Limitations

This antibody is available for research use only and is not approved for use in diagnosis.

Supplied as

Ab produced in HEK293 cell mammalian-based expression system. Prepared in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide.

Warranty

There are no warranties, expressed or implied, which extend beyond this description. Company is not liable for any personal injury or economic loss resulting from this product.
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