Multicolor flow cytometric analysis of LAG-3 (CD223) expression on unstimulated (Top Figures) and stimulated (Bottom Figures) human peripheral blood lymphocytes. Human peripheral blood mononuclear cells (PBMC) were cultured for 3 days with plate-bound Anti-Human CD3 (Cat. No. 555329; 10 µg/mL for coating) and soluble Anti-Human CD28 (Cat. No. 555725; 1 µg/mL) antibodies, and Human Recombinant IL-2 (Cat. No. 554603; 10 ng/mL). Unstimulated PBMC (from the same donor) and stimulated PBMC were stained with BD Horizon™ BV421 Mouse Anti-Human CD8 (Cat. No. 562428/562429; Left Figures), BD Horizon™ BUV737 Mouse Anti-Human CD279 (PD-1) (Cat. No. 612791/612792; Right Figures), and Alexa Fluor™ 488 Mouse Anti-Human LAG-3 (CD223) (Cat. No. 567610/567611) antibodies. BD Via-Probe™ Cell Viability 7-AAD Solution (Cat. No. 555815/555816) was added to cells right before analysis. Multicolor flow cytometric contour plots showing the correlated expression of LAG-3 (CD223) versus CD8, or LAG-3 versus CD279 (PD-1) were derived from gated events with the forward and side light-scatter characteristics of viable (7-AAD-negative) unstimulated or stimulated lymphocytes. Flow cytometry and data analysis were performed using a BD X-20 LSRFortessa™ Cell Analyzer System and FlowJo™ software.
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Multicolor flow cytometric analysis of LAG-3 (CD223) expression on unstimulated (Top Figures) and stimulated (Bottom Figures) human peripheral blood lymphocytes. Human peripheral blood mononuclear cells (PBMC) were cultured for 3 days with plate-bound Anti-Human CD3 (Cat. No. 555329; 10 µg/mL for coating) and soluble Anti-Human CD28 (Cat. No. 555725; 1 µg/mL) antibodies, and Human Recombinant IL-2 (Cat. No. 554603; 10 ng/mL). Unstimulated PBMC (from the same donor) and stimulated PBMC were stained with BD Horizon™ BV421 Mouse Anti-Human CD8 (Cat. No. 562428/562429; Left Figures), BD Horizon™ BUV737 Mouse Anti-Human CD279 (PD-1) (Cat. No. 612791/612792; Right Figures), and Alexa Fluor™ 488 Mouse Anti-Human LAG-3 (CD223) (Cat. No. 567610/567611) antibodies. BD Via-Probe™ Cell Viability 7-AAD Solution (Cat. No. 555815/555816) was added to cells right before analysis. Multicolor flow cytometric contour plots showing the correlated expression of LAG-3 (CD223) versus CD8, or LAG-3 versus CD279 (PD-1) were derived from gated events with the forward and side light-scatter characteristics of viable (7-AAD-negative) unstimulated or stimulated lymphocytes. Flow cytometry and data analysis were performed using a BD X-20 LSRFortessa™ Cell Analyzer System and FlowJo™ software.
Product Details
BD Pharmingen™
LAG3; CD223; FDC; Lymphocyte activation gene 3 protein; Protein FDC
Human (QC Testing)
Mouse IgG1, κ
Human LAG-3 Recombinant Protein
Flow cytometry (Routinely Tested)
5 µl
3902
Aqueous buffered solution containing BSA and ≤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® 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.
- Alexa Fluor® 488 fluorochrome emission is collected at the same instrument settings as for fluorescein isothiocyanate (FITC).
- Source of all serum proteins is from USDA inspected abattoirs located in the United States.
- 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.
- 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).
- 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.
- This product is provided under an intellectual property license between Life Technologies Corporation and BD Businesses. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The buyer cannot sell or otherwise transfer (a) this product (b) its components or (c) materials made using this product or its components to a third party or otherwise use this product or its components or materials made using this product or its components for Commercial Purposes. Commercial Purposes means any activity by a party for consideration and may include, but is not limited to: (1) use of the product or its components in manufacturing; (2) use of the product or its components to provide a service, information, or data; (3) use of the product or its components for therapeutic, diagnostic or prophylactic purposes; or (4) resale of the product or its components, whether or not such product or its components are resold for use in research. For information on purchasing a license to this product for any other use, contact Life Technologies Corporation, Cell Analysis Business Unit Business Development, 29851 Willow Creek Road, Eugene, OR 97402, USA, Tel: (541) 465-8300. Fax: (541) 335-0504.
- Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
- Alexa Fluor™ is a trademark of Life Technologies Corporation.
Companion Products
Stain Buffer (FBS) RUO
Size
500 mL
Cat No.
554656
Stain Buffer (BSA) RUO
Size
500 mL
Cat No.
554657
BV421 Mouse Anti-Human CD8 RUO
Size
100 Tests
Cat No.
562428
BUV737 Mouse Anti-Human CD279 (PD-1) RUO
Size
100 Tests
Cat No.
612791
Alexa Fluor® 488 Mouse IgG1 κ Isotype Control RUO
Size
50 µg
Cat No.
565572
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567610 Rev. 1
Antibody Details
T47-530
The T47-530 specifically recognizes the Lymphocyte Activation Gene 3 (LAG-3) protein which is also known as, Protein FDC, or CD223. LAG-3 is a ~70 kDa type I transmembrane glycoprotein that belongs to the Ig superfamily and exhibits homology to CD4. LAG-3 is expressed on NK cells, regulatory T cells, and activated conventional T cells with higher expression found on CD8+ T cells compared with CD4+ T cells. LAG-3 is an activation induced cell surface molecule that like CD4, binds MHC class II molecules, but with much higher affinity. This may enable LAG-3 to act as a negative competitor of CD4 for MHC class II ligand binding. LAG-3 may associate with the TCR-CD3 complex to downregulate TCR signal transduction and T cell clonal expansion. In contrast, LAG-3-induced signaling may promote dendritic cell activation.
567610 Rev. 1
Format Details
Alexa Fluor™ 488
Alexa Fluor™ 488 Dye is part of the BD blue family of dyes. This is a small organic fluorochrome with an excitation maximum (Ex Max) at 494-nm and an emission maximum (Em Max) at 517-nm. Alexa Fluor™ 488 is designed to be excited by the Blue laser (488 nm) and detected using an optical filter centered near 520-nm (e.g., a 530/30-nm bandpass filter). Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
Alexa Fluor™ 488
Blue 488 nm
494 nm
517 nm
567610 Rev.1
Citations & References
View product citations for antibody "567610" on CiteAb
Development References (5)
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Casati C, Camisaschi C, Novellino L, et al. Human lymphocyte activation gene-3 molecules expressed by activated T cells deliver costimulation signal for dendritic cell activation. J Immunol. 2008; 180(6):3782-3788. (Biology). View Reference
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Hannier S, Tournier M, Bismuth G, Triebel F. CD3/TCR complex-associated lymphocyte activation gene-3 molecules inhibit CD3/TCR signaling. J Immunol. 1998; 161(8):4058-4065. (Biology). View Reference
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Huang CT, Workman CJ, Flies D, et al. Role of LAG-3 in regulatory T cells. Immunity. 2004; 21(4):503-513. (Biology). View Reference
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Triebel F, Hacene K, Pichon MF. A soluble lymphocyte activation gene-3 (sLAG-3) protein as a prognostic factor in human breast cancer expressing estrogen or progesterone receptors. Cancer Lett. 2006; 235(1):147-153. (Biology). View Reference
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Triebel F, Jitsukawa S, Baixeras E, et al. LAG-3, a novel lymphocyte activation gene closely related to CD4. J Exp Med. 1990; 171(5):1393-1405. (Biology). View Reference
567610 Rev. 1
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.