CST, 89186SF, CD23 (E1R4G) Rabbit Monoclonal Antibody (BSA and Azide Free)

Monoclonal Antibody for studying CD23. Validated for Immunohistochemistry (Paraffin). Highly specific and rigorously validated in-house, CD23 (E1R4G) Rabbit Monoclonal Antibody (BSA and Azide Free) (CST #89186) is ready to ship. Product Usage Information This product is the carrier free version of product #87960. All data were generated using the same antibody clone in the standard formulation which contains BSA and glycerol. This formulation is ideal for use with technologies requiring specialized or custom antibody labeling, including fluorophores, metals, lanthanides, and oligonucleotides. It is not recommended for ChIP, ChIP-seq, CUT&RUN or CUT&Tag assays. If you require a carrier free formulation for chromatin profiling, please contact us . Optimal dilutions/concentrations should be determined by the end user. BSA and Azide Free antibodies are quality control tested by size exclusion chromatography (SEC) to determine antibody integrity. Formulation Supplied in 1X PBS (10 mM Na 2 HPO 4 , 3 mM KCl, 2 mM KH 2 PO 4 , and 140 mM NaCl (pH 7.8)). BSA and Azide Free. For standard formulation of this product see product # 87960 Storage Store at -20°C. This product will freeze at -20°C so it is recommended to aliquot into single-use vials to avoid multiple freeze/thaw cycles. A slight precipitate may be present and can be dissolved by gently vortexing. This will not interfere with antibody performance. Specificity / Sensitivity CD23 (E1R4G) Rabbit Monoclonal Antibody (BSA and Azide Free) recognizes endogenous levels of total CD23 protein. Species Reactivity: Human Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ala118 of human CD23 protein. Background CD23, also known as FcεRII, is a trimeric type II transmembrane glycoprotein member of the calcium-dependent (C-type) lectin family (1). CD23 is expressed in B and T lymphocytes, monocytes, polymorphonuclear leukocytes, follicular dendritic cells, intestinal epithelial cells, and bone marrow stromal cells (2-8). CD23 was first identified as a low-affinity receptor for IgE and the engagement of membrane bound CD23 leads to suppressed IgE production by B lymphocytes (9). CD23 can be cleaved to form a soluble protein which can drive cytokine release in monocytic cells, nitric oxide (NO) production, and the synthesis of cyclic adenosine 3′5′-monophosphate (cAMP) (10). Soluble CD23 signals through integrins, activating MAPK and NF-κB pathways (11). CD23 is a useful marker in the prognosis of neoplastic disease, is elevated in a variety of autoimmune and inflammatory conditions, and is being investigated as a therapeutic target for IgE-mediated allergy, arthritis, and B cell chronic lymphocytic leukemia (CLL) (12). Alternate Names BLAST-2; C-type lectin domain family 4 member J; C-type lectin domain family 4, member J; CD23; CD23 antigen; CD23A; CLEC4J; Fc epsilon receptor II; Fc fragment of IgE receptor II; Fc fragment of IgE, low affinity II, receptor for (CD23); Fc-epsilon-RII; FCE2; FCER2; IGEBF; Immunoglobulin E-binding factor; immunoglobulin epsilon-chain; Low affinity immunoglobulin epsilon Fc receptor; Low affinity immunoglobulin epsilon Fc receptor membrane-bound form; Low affinity immunoglobulin epsilon Fc receptor soluble form; Lymphocyte IgE receptor Specification REACTIVITY: H SENSITIVITY: Endogenous Source/Isotype: Rabbit IgG