CD23/Fc epsilon RII Antibody (5B5) Summary
| Immunogen |
Purified recombinant fragment of human FCER2 expressed in E. Coli.
|
| Isotype |
IgG1
|
| Clonality |
Monoclonal
|
| Host |
Mouse
|
| Gene |
FCER2
|
| Purity |
Unpurified
|
| Innovators Reward |
Test in a species/application not listed above to receive a full credit towards a future purchase.
Learn about the Innovators Reward
|
Applications/Dilutions
| Dilutions |
|
Reactivity Notes
Human
Packaging, Storage & Formulations
| Storage |
Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
|
| Buffer |
Ascites
|
| Preservative |
0.03% Sodium Azide
|
| Purity |
Unpurified
|
Alternate Names for CD23/Fc epsilon RII Antibody (5B5)
- BLAST-2
- CD23
- CD23A
- CD23CD23 antigen
- CLEC4J
- 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)
- fc-epsilon-RII
- FCER2
- Fcer2a
- FceRII
- IGEBF
- Immunoglobulin E-binding factor
- low affinity immunoglobulin epsilon Fc receptor
- Ly-42
- Lymphocyte IgE receptor
Background
CD23 is a 45 kD protein, also known as Leu-20, FcepsilonRII, IgE Fc receptor, BLAST-2, B6, and low affinity IgE receptor. It is a member of the Ig family, expressed on most mature B cells, B cells in follicular mantle (but not in proliferating germinal center cells, follicular dendritic cells, monocytes, eosinophils, Langerhans cells, and a subset of T cells (10-15% of tonsillar T cells). CD23 responds to high levels of IgE by downregulating IgE secretion. In human monocytes, CD23 triggering results in release of pro-inflammatory cytokines including TNF-alpha, IL-1, IL-6, and GM-CSF. CD23 can be proteolytically cleaved to generate soluble CD23 fragments of various molecular weights. In chronic lymphocytic leukemia, levels of soluble CD23 in the serum can be used as a prognostic marker to identify patients at high risk for disease progression. Alternate splicing of exon 2 can also generate two cell-surface isoforms of CD23 differing by 6 amino acids in their cytoplasmic region. The D3.6 antibody against human CD23 has been shown to be useful for flow cytometry.
