CD23 (Blast 2, FC Epsilon RII, FC Receptor IgE Low Affinity II Alpha Polypeptide, FCER2A, IgE Binding Factor, IgE Receptor Lymphocyte, IGEBF, Low Affinity immunoglobulin, Ly42) Receptor Soluble Form, Ly42)

Größe

£685.00

SKU:: 521139
Reinheit:: Purified by affinity chromatography.
Lagerbedingungen:: -20°C
Hersteller:: United States Biological
Host:: Mouse
Immunogen:: Purified recombinant fragment corresponding to human FCER2 expressed in E. coli.
Format:: Supplied as a liquid in PBS (without Mg2+ and Ca2+), pH 7.4, 0.02% sodium azide, 50% glycerol.
Weitere Details:: The human leukocyte differentiation antigen CD23 (FCE2) is a key molecule for B-cell activation and growth. It is the low-affinity receptor for IgE. The truncated molecule can be secreted, then functioning as a potent mitogenic growth factor. 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 “membrane bound cytokine, in that the soluble cleavage products of CD23 are themselves able to act as cytokines in vitro Applications: Suitable for use in ELISA and Flow Cytometry. Other applications not tested. Recommended Dilution: ELISA: 1:10,000 Flow Cytometry: 1:200-1:400 Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Versandbedingungen:: Blue Ice