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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
- Researchers should determine the optimal concentration of this reagent for their individual applications.
- 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.
- An isotype control should be used at the same concentration as the antibody of interest.
- 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.
- Alexa Fluor™ is a trademark of Life Technologies Corporation.
- Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
- This product is provided under an Agreement between BIOTIUM and BD Biosciences. This product, and only in the amount purchased by buyer, may be used solely for buyer’s own internal research, in a manner consistent with the accompanying product literature. No other right to use, sell or otherwise transfer (a) this product, or (b) its components is hereby granted expressly, by implication or by estoppel. This product is for research use only. Diagnostic uses require a separate license from Biotium, Inc. For information on purchasing a license to this product including for purposes other than research, contact Biotium, Inc., 3159 Corporate Place, Hayward, CA 94545, Tel: (510) 265-1027. Fax: (510) 265-1352. Email: btinfo@biotium.com.
- 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.
Companion Products
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The HP6050 monoclonal antibody specifically recognizes the subclass of human Immunoglobulin G (IgG) known as IgG3. Human IgG3 is the third most abundant of the four subclasses of IgG (IgG1, IgG2, IgG3, and IgG4) named in order of their relative serum concentrations. IgG3 is comprised of two identical heavy chains encoded by IGHG3, and two light chains, either Igκ or Igλ, linked by disulfide bonds. The HP6050 antibody binds to the hinge region of the IgG3 heavy chain and does not crossreact with other immunoglobulin heavy chain (IgH) subclasses. IgG3 is normally expressed by plasmablasts, plasma cells, and memory (IgG3 class-switched) B cells as well as by some myeloma or plasmacytoma cells. HP6050 binds to soluble human IgG3, cytophilic IgG3 attached to Fc receptor-positive cells through its Fc region, or human IgG3 antibodies specifically bound to antigens. IgG3 can cross the placenta and diffuse throughout extravascular fluids throughout the body. Human IgG3 serves multiple functions with the transmembrane form serving as an antigen receptor for B lymphocytes and secreted soluble forms participating in various effector functions. The latter include antibody-dependent neutralization of toxins or infection by microbes, opsonization for phagocytosis, efficient complement fixation, and cell-mediated cytotoxicity.
Development References (6)
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Avery DT, Bryant VL, Ma CS, de Waal Malefyt R, Tangye SG. IL-21-induced isotype switching to IgG and IgA by human naive B cells is differentially regulated by IL-4. J Immunol. 2008; 181(3):1767-1779. (Biology). View Reference
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Blanco E, Perez-Andres M, Sanoja-Flores L, et al. Selection and validation of antibody clones against IgG and IgA subclasses in switched memory B-cells and plasma cells. J Immunol Methods. 2017; In Press. (Clone-specific: Flow cytometry). View Reference
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Gao B, Moore C, Porcheray F, et al. Pretransplant IgG reactivity to apoptotic cells correlates with late kidney allograft loss.. Am J Transplant. 2014; 14(7):1581-91. (Clone-specific: Flow cytometry). View Reference
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Jefferis R, Reimer CB, Skvaril F, et al. Evaluation of monoclonal antibodies having specificity for human IgG sub-classes: results of an IUIS/WHO collaborative study.. Immunol Lett. 1985; 10(3-4):223-52. (Clone-specific: ELISA, Hemagglutination assay, Immunocytochemistry, Immunofluorescence, Radioimmunoassay). View Reference
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Reimer CB, Phillips DJ, Aloisio CH, et al. Evaluation of thirty-one mouse monoclonal antibodies to human IgG epitopes.. Hybridoma. 1984; 3(3):263-75. (Immunogen: Array, Fluorescence quantitation). View Reference
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Tangye SG, Ferguson A, Avery DT, Ma CS, Hodgkin PD. Isotype switching by human B cells is division-associated and regulated by cytokines.. J Immunol. 2002; 169(8):4298-306. (Biology). View Reference
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.