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RB744 Mouse Anti-Human CD23
RB744 Mouse Anti-Human CD23
Multiparameter flow cytometric analysis using BD OptiBuild™ RB744 Mouse Anti-Human CD23 antibody (Cat. No. 757477) on Human peripheral blood, with corresponding IgG Isotype Control (Cat. No. 570519; Left Plot). Samples were acquired on the BD FACSymphony™ A5 SE Cell Analyzer.
RB744 Mouse Anti-Human CD23
Multiparameter flow cytometric analysis using BD OptiBuild™ RB744 Mouse Anti-Human CD23 antibody (Cat. No. 757477) on Human peripheral blood, with corresponding IgG Isotype Control (Cat. No. 570519; Left Plot). Samples were acquired on the BD FACSymphony™ A5 SE Cell Analyzer.
Multiparameter flow cytometric analysis using BD OptiBuild™ RB744 Mouse Anti-Human CD23 antibody (Cat. No. 757477) on Human peripheral blood, with corresponding IgG Isotype Control (Cat. No. 570519; Left Plot). Samples were acquired on the BD FACSymphony™ A5 SE Cell Analyzer.
Multiparameter flow cytometric analysis using BD OptiBuild™ RB744 Mouse Anti-Human CD23 antibody (Cat. No. 757477) on Human peripheral blood, with corresponding IgG Isotype Control (Cat. No. 570519; Left Plot). Samples were acquired on the BD FACSymphony™ A5 SE Cell Analyzer.
Product Details
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BD OptiBuild™
FCER2; FcεRII; Low affinity immunoglobulin epsilon Fc receptor; BLAST-2
Human (Tested in Development)
Mouse IgG1, κ
Flow cytometry (Qualified)
0.2 mg/ml
V CD23.15
2208
Aqueous buffered solution containing ≤0.09% sodium azide.
RUO


Preparation And Storage

The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated to the dye under optimum conditions that minimize unconjugated dye and antibody. Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.

Recommended Assay Procedures

BD® CompBeads can be used as surrogates to assess fluorescence spillover (compensation). When fluorochrome conjugated antibodies are bound to BD® CompBeads, they have spectral properties very similar to cells. However, for some fluorochromes there can be small differences in spectral emissions compared to cells, resulting in spillover values that differ when compared to biological controls. It is strongly recommended that when using a reagent for the first time, users compare the spillover on cells and BD® CompBeads to ensure that BD® CompBeads are appropriate for your specific cellular application.

Product Notices

  1. When using high concentrations of antibody, background binding of this dye to erythroid fragments produced by ammonium chloride-based lysis, such as with BD Pharm Lyse™ Lysing Buffer (Cat. No. 555899), has been observed when the antibody conjugate was present during the lysis procedure. This may cause nonspecific staining of target cells, such as leukocytes, which have bound the resulting erythroid fragments. This background can be mitigated by any of the following: titrating the antibody conjugate to a lower concentration, fixing samples with formaldehyde, or removing erythrocytes before staining (eg, gradient centrifugation or pre-lysis with wash). This background has not been observed when cells were lysed with BD FACS™ Lysing Solution (Cat. No. 349202) after staining.
  2. The production process underwent stringent testing and validation to assure that it generates a high-quality conjugate with consistent performance and specific binding activity. However, verification testing has not been performed on all conjugate lots.
  3. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
  4. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  5. An isotype control should be used at the same concentration as the antibody of interest.
  6. Please observe the following precautions: We recommend that special precautions be taken (such as wrapping vials, tubes, or racks in aluminum foil) to protect exposure of conjugated reagents, including cells stained with those reagents, to any room illumination. Absorption of visible light can significantly affect the emission spectra and quantum yield of tandem fluorochrome conjugates.
  7. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
  8. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
  9. Human donor specific background has been observed in relation to the presence of anti-polyethylene glycol (PEG) antibodies, developed as a result of certain vaccines containing PEG, including some COVID-19 vaccines. We recommend use of BD Horizon Brilliant™ Stain Buffer in your experiments to help mitigate potential background. For more information visit https://www.bdbiosciences.com/en-us/support/product-notices.
  10. Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
  11. For U.S. patents that may apply, see bd.com/patents.
757477 Rev. 1
Antibody Details
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M-L233

The M-L233 antibody specifically binds to human CD23, the low affinity receptor for human IgE (FcεRII). CD23 is a type II membrane glycoprotein that is expressed by B cells, monocytes, macrophages, eosinophils, platelets and dendritic cells. CD23 mediates IgE-dependent cytotoxicity and phagocytosis by macrophages and eosinophils. Soluble CD23 (sCD23) can be released by CD23-positive cells as a result of proteolytic cleavage of membrane CD23. Larger fragments of sCD23 (e.g., 25-37 kDa) retain their IgE-binding capacity whereas smaller fragments (ie, ≤ 12 kDa) do not. Soluble CD23 may have immunoregulatory effects on the growth and differentiation of B cells and other cell types.

757477 Rev. 1
Format Details
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RB744
The BD Horizon RealBlue™ 744 (RB744) Dye is part of the BD® family of blue dyes. It is a tandem fluorochrome with an excitation maximum (Ex Max) at 498-nm and an emission maximum (Em Max) at 746-nm as measured using an antibody-dye conjugate. Driven by BD® innovation, RB744 can be used on both spectral and conventional cytometers and is designed to be excited by the Blue laser (488-nm) with minimal excitation by the 561-nm Yellow-Green laser. For conventional instruments equipped with a Blue laser (488-nm), we recommend using an optical filter centered near 750-nm (e.g., a 750/60-nm bandpass filter).
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RB744
Blue 488 nm
498 nm
746 nm
757477 Rev.1
Citations & References
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View product citations for antibody "757477" on CiteAb

Development References (6)

  1. Belleau JT, Gandhi RK, McPherson HM, Lew DB. Research upregulation of CD23 (FcepsilonRII) expression in human airway smooth muscle cells (huASMC) in response to IL-4, GM-CSF, and IL-4/GM-CSF. Clin Mol Allergy. 2005; 3(6):1-12. (Clone-specific: Flow cytometry, Immunofluorescence, Western blot). View Reference
  2. Delespesse G, Hofstetter H, Sarfati M. Low-affinity receptor for IgE (FcERII, CD23) and its soluble fragments. Int Arch Allergy Immunol. 1989; 90(1):41-44. (Biology). View Reference
  3. Gordon J, Millsum MJ, Flores-Romo L, Gillis S. Regulation of resting and cycling human B lymphocytes via surface IgM and the accessory molecules interleukin-4, CD23 and CD40. Immunology. 1989; 68(4):526-531. (Biology). View Reference
  4. Rieber EP, Rank G, Kohler I, Krauss S. Membrane expression of Fc epsilon RII/CD23 and release of soluble CD23 by follicular dendritic cells. Adv Exp Med Biol. 1993; 329:393-398. (Biology). View Reference
  5. Saeland S, Duvert V, Moreau I, Banchereau J. Human B cell precursors proliferate and express CD23 after CD40 ligation. J Exp Med. 1993; 178(1):113-120. (Biology). View Reference
  6. Sarfati M, Ishihara H, Delespesse G. CD23 Workshop Panel report. In: Schlossman SF. Stuart F. Schlossman .. et al., ed. Leucocyte typing V : white cell differentiation antigens : proceedings of the fifth international workshop and conference held in Boston, USA, 3-7 November, 1993. Oxford: Oxford University Press; 1995:530-533.
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757477 Rev. 1

 

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For Research Use Only. Not for use in diagnostic or therapeutic procedures.