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R718 Mouse Anti-Human IgM
R718 Mouse Anti-Human IgM
Flow cytometric analysis of IgM expression on human peripheral blood lymphocytes. Human peripheral blood mononuclear cells (PBMC) were incubated in complete medium overnight to minimize subsequent nonspecific immunofluorescent staining. The cells were harvested and stained with FITC Mouse Anti-Human CD19 antibody (Cat. No. 555412/560994) and either BD Horizon™ R718 Mouse IgG1, κ Isotype Control (Cat No.566928; Left Plot) or BD Horizon™ R718 Mouse Anti-Human IgM antibody (Cat. No. 567639/567640; Right Plot). A bivariate pseudocolor density plot showing the correlated expression of cell surface IgM (or Ig Isotype control staining) versus CD19 was derived from gated events with the forward and side light-scatter characteristics of viable lymphocytes. Flow cytometry and data analysis were performed using a BD LSRFortessa™ X20 Cell Analyzer System and FlowJo™ software.
Flow cytometric analysis of IgM expression on human peripheral blood lymphocytes. Human peripheral blood mononuclear cells (PBMC) were incubated in complete medium overnight to minimize subsequent nonspecific immunofluorescent staining. The cells were harvested and stained with FITC Mouse Anti-Human CD19 antibody (Cat. No. 555412/560994) and either BD Horizon™ R718 Mouse IgG1, κ Isotype Control (Cat No.566928; Left Plot) or BD Horizon™ R718 Mouse Anti-Human IgM antibody (Cat. No. 567639/567640; Right Plot). A bivariate pseudocolor density plot showing the correlated expression of cell surface IgM (or Ig Isotype control staining) versus CD19 was derived from gated events with the forward and side light-scatter characteristics of viable lymphocytes. Flow cytometry and data analysis were performed using a BD LSRFortessa™ X20 Cell Analyzer System and FlowJo™ software.
Product Details
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BD Horizon™
IGHM; MU; Ig mu chain C region; AGM1; VH
Human (QC Testing)
Mouse IgG1, κ
Flow cytometry (Routinely Tested)
5 µl
3507
Aqueous buffered solution containing ≤0.09% sodium azide.
RUO


Preparation And Storage

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

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 CompBead to ensure that BD CompBeads are appropriate for your specific cellular application.

Product Notices

  1. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
  2. An isotype control should be used at the same concentration as the antibody of interest.
  3. 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.
  4. This reagent has been pre-diluted for use at the recommended Volume per Test. We typically use 1 × 10^6 cells in a 100-µl experimental sample (a test).
  5. Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
  6. 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.
  7. Alexa Fluor™ is a trademark of Life Technologies Corporation.
567640 Rev. 1
Antibody Details
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G20-127

IgM is an important component in the first line of defense against foreign pathogens, but may also play a role in autoimmune diseases.  IgM monomers consist of two light and two heavy chains.  Unlike the heavy chain of an IgG antibody which contains 3 constant Ig domains, the µ heavy chain of IgM contains 4 constant Ig domains.  Five IgM monomers complex with a small polypeptide (J-chain) to form pentameric IgM that can be found in human plasma.  In an immune response, the binding of IgM to a cell surface antigen enables C1q to activate interactions with downstream components in the classical complement pathway.  Mature B lymphocytes express IgM.  The G20-127 monoclonal antibody binds to the heavy chain of human IgM. The G20-127 antibody is not thought to react with other immunoglobulin heavy chain isotypes.

The antibody was conjugated to BD Horizon Red 718, which has been developed exclusively for BD Biosciences as a better alternative to Alexa Fluor® 700. BD Horizon Red 718 can be excited by the red laser (628 – 640 nm) and, with an Em Max around 718 nm, it can be detected using a 730/45 nm filter. Due to similar excitation and emission properties, we do not recommend using R718 in combination with APC-R700 or Alexa Fluor® 700.

567640 Rev. 1
Format Details
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R718
The BD Horizon™ Red 718 (R718) Dye is part of the BD red family of dyes. It is a small organic fluorochrome with an excitation maximum (Ex Max) at 695-nm and an emission maximum (Em Max) at 718-nm. Driven by BD innovation, R718 is designed to be excited by the red laser (627–640-nm) and detected using an optical filter centered near 720-nm (e.g., a 720/40-nm bandpass filter). R718 is a brighter alternative to Alexa Fluor™ 700. R718 is also a bright small molecule alternative to APC-R700 with lower spread into the APC detector. Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
altImg
R718
Red 627-640 nm
695 nm
718 nm
567640 Rev.1
Citations & References
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Development References (5)

  1. Chtanova T, Tangye SG, Newton R, et al. T follicular helper cells express a distinctive transcriptional profile, reflecting their role as non-Th1/Th2 effector cells that provide help for B cells. J Immunol. 2004; 173(1):68-78. (Clone-specific: Flow cytometry). View Reference
  2. Le Gallou S, Caron G, Delaloy C, Rossille D, Tarte K, Fest T. IL-2 requirement for human plasma cell generation: coupling differentiation and proliferation by enhancing MAPK-ERK signaling. J Immunol. 2012; 189(1):161-173. (Clone-specific: Flow cytometry). View Reference
  3. Mei HE, Yoshida T, Sime W, et al. Blood-borne human plasma cells in steady state are derived from mucosal immune responses. Blood. 2009; 113(11):2461-2469. (Clone-specific: Flow cytometry, Immunofluorescence). View Reference
  4. Widhopf GF, 2nd, Brinson DC, Kipps TJ, Tighe H. Transgenic expression of a human polyreactive Ig expressed in chronic lymphocytic leukemia generates memory-type B cells that respond to nonspecific immune activation. J Immunol. 2004; 172(4):2092-2099. (Clone-specific: Flow cytometry). View Reference
  5. Zola H, Macardle PJ, Flego L, Webster J. The expression of sub-population markers on B cells: a re-evaluation using high-sensitivity fluorescence flow cytometry. Dis Markers. 1991; 9(2):103-118. (Biology). View Reference
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567640 Rev. 1

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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.