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BB700 Mouse Anti-Human NKG2A (CD159a)
Product Details
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BD OptiBuild™
KLRC1; CD159A; NKG2A; NK cell receptor A; natural killer cell lectin; natural killer group protein 2; C-lectin type II protein
Human (Tested in Development)
Mouse IgG2a, κ
Human NKG2A and CD94 Transfected Cell Line
Flow cytometry (Qualified)
0.2 mg/ml
Aqueous buffered solution containing ≤0.09% sodium azide.

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 BB700 under optimal conditions that minimize unconjugated dye and antibody.

Recommended Assay Procedures

For optimal and reproducible results, BD Horizon Brilliant Stain Buffer should be used anytime two or more BD Horizon Brilliant dyes (including BD OptiBuild Brilliant reagents) 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).

Product Notices

  1. This antibody was developed for use in flow cytometry.
  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. Researchers should determine the optimal concentration of this reagent for their individual applications.
  4. An isotype control should be used at the same concentration as the antibody of interest.
  5. 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.
  6. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at
  7. Please refer to for technical protocols.
  8. 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.
  9. BD Horizon Brilliant Blue 700 is covered by one or more of the following US patents: 8,455,613 and 8,575,303.
  10. Cy is a trademark of GE Healthcare.
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Antibody Details
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The 131411 monoclonal antibody specifically recognizes NKG2A which is also known as NK cell receptor A, Natural killer cell lectin, Natural killer group protein 2, C-lectin type II protein, or CD159 antigen-like family member A (CD159a). NKG2A (CD159a) is encoded by KLRC1 (killer cell lectin like receptor C1) which belongs to the killer cell lectin-like receptor (KLR) family. This type II transmembrane glycoprotein contains a C-type lectin domain in its extracellular region and two immunoreceptor tyrosine-based inhibitory motifs (ITIMs) in its intracellular region. NKG2A (CD159a) is expressed on NK cells and some T cells. NKG2A (CD159a) forms a disulfide-bonded heterodimer with CD94 that can bind to MHC class I HLA-E molecules on target cells and inhibit NK cell activation.

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Format Details
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The BD Horizon Brilliant™ Blue 700 (BB700) Dye is part of the BD Horizon Brilliant™ Blue family of dyes. This tandem fluorochrome is comprised of a polymer-technology dye donor with an excitation maximum (Ex Max) of 476-nm and an acceptor dye with an emission maximum (Em Max) at 695-nm. Driven by BD innovation, BB700 is designed to be excited by the blue laser (488-nm) and detected using an optical filter centered near 695-nm (e.g., a 695/20-nm bandpass filter). The donor dye can be excited by the Violet (405 nm) laser and the acceptor dye can be excited by the red (627–640 nm) laser resulting in cross-laser excitation and fluorescence spillover. BB700 Reagents are significantly brighter than equivalent PerCP or PerCP-Cy5.5 reagents and are less sensitive to photobleaching. In addition, BB700 shows much less excitation by the violet (407-nm) laser resulting in less spillover. BB700 has minimal yellow green (562-nm) excitation and is ideal for instruments with both blue (488-nm) and yellow green (562-nm) lasers. Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
Blue 488 nm
476 nm
695 nm
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Citations & References
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Development References (4)

  1. Houchins JP, Yabe T, McSherry C, Bach FH. DNA sequence analysis of NKG2, a family of related cDNA clones encoding type II integral membrane proteins on human natural killer cells.. J Exp Med. 1991; 173(4):1017-20. (Biology). View Reference
  2. Loyon R, Picard E, Mauvais O, et al. IL-21-Induced MHC Class II+ NK Cells Promote the Expansion of Human Uncommitted CD4+ Central Memory T Cells in a Macrophage Migration Inhibitory Factor-Dependent Manner.. J Immunol. 2016; 197(1):85-96. (Clone-specific: Flow cytometry). View Reference
  3. Messal N, Mamessier E, Sylvain A, et al. Differential role for CD277 as a co-regulator of the immune signal in T and NK cells.. Eur J Immunol. 2011; 41(12):3443-54. (Clone-specific: Functional assay). View Reference
  4. Picardi A, Mengarelli A, Marino M, et al. Up-regulation of activating and inhibitory NKG2 receptors in allogeneic and autologous hematopoietic stem cell grafts.. J Exp Clin Cancer Res. 2015; 34:98. (Clone-specific: Flow cytometry). View Reference
View All (4) View Less
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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.