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Regulatory Status Legend
Any use of products other than the permitted use without the express written authorization of Becton, Dickinson and Company is strictly prohibited.
Preparation And Storage
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
- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
- Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
- For U.S. patents that may apply, see bd.com/patents.
- 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.
- Since applications vary, each investigator should titrate the reagent to obtain optimal results.
- 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.
- 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.
- 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.
- For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
- An isotype control should be used at the same concentration as the antibody of interest.
- 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.
Companion Products
This HB14 monoclonal antibody specifically recognizes CD40 which is also known as Tumor necrosis factor receptor superfamily member 5 (TNFRSF5). CD40 is an ~45-48 kDa single-pass type I transmembrane glycoprotein. CD40 is expressed on B lymphocytes, monocytes, macrophages, dendritic cells, endothelial cells, fibroblasts, keratinocytes, and CD34+ hematopoietic progenitor cells. CD40 serves as a receptor for CD154 (CD40 Ligand or CD40L). CD40:CD154 interactions costimulate B cell growth, differentiation, and immunoglobulin isotype switching in antibody responses to T-dependent antigens as well as the generation of memory B cells and cytokine production by monocytes and dendritic cells. The HB14 antibody reportedly crossreacts with CD40 expressed by several non-human primates including Rhesus and Cynomolgus Macaques as well as Olive Baboons.
Development References (12)
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Barclay NA, Brown MH, Birkeland ML, et al, ed. The Leukocyte Antigen FactsBook. San Diego, CA: Academic Press; 1997.
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Bjornson-Hooper ZB, Fragiadakis GK, Spitzer MH, et al. A Comprehensive Atlas of Immunological Differences Between Humans, Mice, and Non-Human Primates.. Front Immunol. 2022; 13:867015. (Clone-specific: Flow cytometry). View Reference
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Clark EA, Ledbetter JA. Activation of human B cells mediated through two distinct cell surface differentiation antigens, Bp35 and Bp50. Proc Natl Acad Sci U S A. 1986; 83(12):4494-4498. (Biology). View Reference
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Freedman JE. CD40-CD40L and platelet function: beyond hemostasis.. Circ Res. 2003; 92(9):944-6. (Biology). View Reference
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Galy AH, Spits H. CD40 is functionally expressed on human thymic epithelial cells. J Immunol. 1992; 149(3):775-782. (Biology). View Reference
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Hu HM, O'Rourke K, Boguski MS, Dixit VM. A novel RING finger protein interacts with the cytoplasmic domain of CD40.. J Biol Chem. 1994; 269(48):30069-72. (Clone-specific: Immunoprecipitation). View Reference
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Inwald DP, McDowall A, Peters MJ, Callard RE, Klein NJ. CD40 is constitutively expressed on platelets and provides a novel mechanism for platelet activation.. Circ Res. 2003; 92(9):1041-8. (Biology). View Reference
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Itoh N, Yonehara S, Ishii A, et al. The polypeptide encoded by the cDNA for human cell surface antigen Fas can mediate apoptosis. Cell. 1991; 66(2):233-243. (Biology). View Reference
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Kansas GS, Tedder TF. Transmembrane signals generated through MHC class II, CD19, CD20, CD39, and CD40 antigens induce LFA-1-dependent and independent adhesion in human B cells through a tyrosine kinase-dependent pathway. J Immunol. 1991; 147(12):4094-4102. (Immunogen: Functional assay). View Reference
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Mitchell K, Barreyro L, Todorova TI, et al. IL1RAP potentiates multiple oncogenic signaling pathways in AML.. J Exp Med. 2018; 215(6):1709-1727. (Clone-specific: Flow cytometry). View Reference
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Pound JD, Challa A, Holder MJ, et al. Minimal cross-linking and epitope requirements for CD40-dependent suppression of apoptosis contrast with those for promotion of the cell cycle and homotypic adhesions in human B cells.. Int Immunol. 1999; 11(1):11-20. (Clone-specific: Functional assay). View Reference
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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.
Please refer to Support Documents for Quality Certificates
Global - Refer to manufacturer's instructions for use and related User Manuals and Technical data sheets before using this products as described
Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims. Comparisons are not made against non-BD technologies, unless otherwise noted.
For Research Use Only. Not for use in diagnostic or therapeutic procedures.