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BB515 Mouse Anti-Human CD152
BB515 Mouse Anti-Human CD152
Multiparameter flow cytometric analysis of CD152 expression on activated human peripheral blood lymphocytes. Phytohemagglutinin (PHA)-activated (3 days; Stimulated) human peripheral blood mononuclear cells were preincubated with BD Pharmingen™ Human BD Fc Block™ (Cat. No. 564219/564220). These cells were then stained with APC Mouse Anti-Human CD3 antibody (Cat. No. 555335/561810/561811) and either BD Horizon™ BB515 Mouse IgG2a, κ Isotype Control (Cat. No. 564515; Left Plot) or BD Horizon™ BB515 Mouse Anti-Human CD152 antibody (Cat. No. 566917/566918; Right Plot). BD Via-Probe™ Cell Viability 7-AAD Solution (Cat. No. 555815/555816) was added to cells right before analysis. A bivariate pseudocolor density plot showing the correlated expression of CD152 (or Ig Isotype control staining) versus CD3 was derived from gated events with the forward and side-light scatter characteristics of viable (DAPI-negative) lymphocytes. Flow cytometry and data analysis were performed using a BD LSRFortessa™ Cell Analyzer System and FlowJo™ software.
Multiparameter flow cytometric analysis of CD152 expression on activated human peripheral blood lymphocytes. Phytohemagglutinin (PHA)-activated (3 days; Stimulated) human peripheral blood mononuclear cells were preincubated with BD Pharmingen™ Human BD Fc Block™ (Cat. No. 564219/564220). These cells were then stained with APC Mouse Anti-Human CD3 antibody (Cat. No. 555335/561810/561811) and either BD Horizon™ BB515 Mouse IgG2a, κ Isotype Control (Cat. No. 564515; Left Plot) or BD Horizon™ BB515 Mouse Anti-Human CD152 antibody (Cat. No. 566917/566918; Right Plot). BD Via-Probe™ Cell Viability 7-AAD Solution (Cat. No. 555815/555816) was added to cells right before analysis. A bivariate pseudocolor density plot showing the correlated expression of CD152 (or Ig Isotype control staining) versus CD3 was derived from gated events with the forward and side-light scatter characteristics of viable (DAPI-negative) lymphocytes. Flow cytometry and data analysis were performed using a BD LSRFortessa™ Cell Analyzer System and FlowJo™ software.
Product Details
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BD Horizon™
CTLA-4; AILIM; Cytotoxic T-lymphocyte protein 4
Human (QC Testing), Rhesus, Cynomolgus, Baboon (Tested in Development)
Mouse BALB/c IgG2a, κ
Human CTLA4 Recombinant Protein
Flow cytometry (Routinely Tested)
5 µl
1493
AB_2869947
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 with BD Horizon™ BB515 under optimum conditions and unconjugated antibody was removed.

Recommended Assay Procedures

       BD™ CompBeads can be used as surrogates to assess fluorescence spillover (Compensation).  When fluorochrome conjugated antibodies are bound to 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 CompBead to ensure that BD Comp beads are appropriate for your specific cellular application.

       For optimal and reproducible results, BD Horizon Brilliant Stain Buffer should be used anytime two or more BD Horizon Brilliant dyes are used in the same experiment.  Fluorescent dye interactions may cause staining artifacts which may affect data interpretation.  The BD Horizon Brilliant Stain Buffer was designed to minimize these interactions.  More information can be found in the Technical Data Sheet of the BD Horizon Brilliant Stain Buffer (Cat. No. 563794/566349) or the BD Horizon Brilliant Stain Buffer Plus (Cat. No. 566385).

       For optimal results, it is recommended to perform 2 washes after staining with antibodies. Cells may be prepared, stained with antibodies and washed twice with wash buffer per established protocols for immunofluorescence staining, prior to acquisition on a flow cytometer. Performing fewer than the recommended wash steps may lead to increased spread of the negative population.

Product Notices

  1. 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).
  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. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
  5. Species cross-reactivity detected in product development may not have been confirmed on every format and/or application.
  6. BD Horizon Brilliant Stain Buffer is covered by one or more of the following US patents: 8,110,673; 8,158,444; 8,575,303; 8,354,239.
  7. Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
  8. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
566918 Rev. 1
Antibody Details
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BNI3

The BNI3 monoclonal antibody specifically binds to the human cytolytic T lymphocyte-associated antigen (CTLA-4), also known as CD152. CTLA-4 is transiently expressed on activated CD28+ T cells and binds to CD80 and CD86 present on antigen presenting cells (APC) with high avidity. This interaction appears to deliver a negative regulatory signal to the T cell. Recent reports indicate that CTLA-4 is also expressed on B cells when cultured with activated T cells, suggesting a role for CTLA-4 in the regulation of B-cell response. Immobilized BNI3 antibody enhances T-cell proliferation induced by antibody-mediated crosslinking of CD3 and CD28. Recent studies have shown that CD152 can be expressed by regulatory T (Treg) cells. After cellular fixation and permeabilization, the BNI3 antibody can stain intracellular CD152 expressed in T cells including Treg cells. Clone BNI3 was studied in the VI Leukocyte Typing Workshop.

       The antibody was conjugated to BD Horizon BB515 which is part of the BD Horizon Brilliant™ Blue family of dyes. With an Ex Max near 490 nm and an Em Max near 515 nm, BD Horizon BB515 can be excited by the blue laser (488 nm) laser and detected with a 530/30 nm filter. This dye has been exclusively developed by BD Biosciences and is up to seven times brighter than FITC with less spillover into the PE channel. Due to similar excitation and emission properties, BB515, FITC, and Alexa Fluor® 488 cannot be used simultaneously. It is not recommended to use BB515 in cocktails that include Streptavidin conjugates as it may cause high background.

566918 Rev. 1
Format Details
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BB515
The BD Horizon Brilliant™ Blue 515 (BB515) dye is part of the BD Horizon Brilliant™ Blue family of dyes. This dye is a polymer fluorochrome with an excitation maximum (Ex Max) at 490-nm and an emission maximum (Em Max) of 515-nm. Driven by BD innovation, BB515 is designed to be excited by the blue laser (488-nm) and detected using an optical filter centered near 520-nm (e.g., 530/30-nm). BB515 reagents are significantly brighter than equivalent FITC or Alexa Fluor™ 488 reagents with less spillover into the PE detector. Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
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BB515
Blue 488 nm
490 nm
515 nm
566918 Rev.1
Citations & References
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Development References (8)

  1. Castan J, Klauenberg U, Kalmar P, Fleischer B, Broker BM. Expression of CTLA-4 (CD152) on human medullary CD4+ thymocytes. Med Microbiol Immunol (Berl). 1998; 187(1):49-52. (Immunogen: Immunofluorescence). View Reference
  2. Castan J, Tenner-Racz K, Racz P, Fleischer B, Broker BM. Accumulation of CTLA-4 expressing T lymphocytes in the germinal centres of human lymphoid tissues. Immunology. 1997; 90(2):265-271. (Immunogen: ELISA, Immunofluorescence). View Reference
  3. Kuiper HM, Brouwer M, Linsley PS, van Lier RA. Activated T cells can induce high levels of CTLA-4 expression on B cells. J Immunol. 1995; 155(4):1776-1783. (Biology). View Reference
  4. Lin G-X, Yang X, Hollemweguer E, et al. Cross-reactivity of CD antibodies in eight animal species. In: Mason D. David Mason .. et al., ed. Leucocyte typing VII : white cell differentiation antigens : proceedings of the Seventh International Workshop and Conference held in Harrogate, United Kingdom. Oxford: Oxford University Press; 2002:519-523.
  5. Lindsten T, Lee KP, Harris ES, et al. Characterization of CTLA-4 structure and expression on human T cells. J Immunol. 1993; 151(7):3489-3499. (Biology). View Reference
  6. Morton PA, Fu XT, Stewart JA, et al. Differential effects of CTLA-4 substitutions on the binding of human CD80 (B7-1) and CD86 (B7-2). J Immunol. 1996; 156(3):1047-1054. (Biology). View Reference
  7. Wang H, Shih CC, Waters JB, et al. CD152 (CTLA4) Workshop: Expression and function of CD152 on human T cells: A study using a mouse anti-human CD152 monoclonal antibody BNI3.1. In: Kishimoto T. Tadamitsu Kishimoto .. et al., ed. Leucocyte typing VI : white cell differentiation antigens : proceedings of the sixth international workshop and conference held in Kobe, Japan, 10-14 November 1996. New York: Garland Pub.; 1997:97-98.
  8. Zola H. Leukocyte and stromal cell molecules : the CD markers. Hoboken, N.J.: Wiley-Liss; 2007.
View All (8) View Less
566918 Rev. 1

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