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Invitrogen
CD223 (LAG-3) Monoclonal Antibody (3DS223H), Brilliant Ultra Violet™ 737, eBioscience™
FIGURE: 1 / 1
CD223 (LAG-3) Antibody (367-2239-42) in Flow
Normal human peripheral blood cells were stimulated for 72 hours with CD3 Monoclonal Antibody, Functional Grade (Product # 16-0037-85), CD28 Monoclonal Antibody, Functional Grade (Product # 16-0289-85) and Human IL-2 Recombinant Protein. Cells were then stained with CD8a Monoclonal Antibody, PE (Product # 12-0088-42) and Mouse IgG1 kappa Isotype Control, Brilliant Ultra Violet 737 (BUV737) (Product # 367-4714-81) (left) or CD223 (LAG-3) Monoclonal Antibody, Brilliant Ultra Violet 737 (BUV737) (right). Viable cells in the lymphocyte gate we... View More
Product Details
367-2239-42
Product Specifications
Species Reactivity
Human
Host/Isotype
Mouse
/ IgG1, kappa
Recommended Isotype Control
Class
Monoclonal
Type
Antibody
Clone
3DS223H
Immunogen
hCD223-FC PFA 4%
Conjugate
Excitation/Emission Max
350/740 nm
View spectra
Form
Liquid
Concentration
5 µL/Test
Purification
Affinity chromatography
Storage buffer
PBS, pH 7.2, with BSA
Contains
0.09% sodium azide
Storage conditions
4° C, store in dark, DO NOT FREEZE!
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
AB_2896003
Product Specific Information
Description: The 3DS223H monoclonal antibody recognizes human CD223 also known as Lymphocyte Activation Gene 3 (LAG-3). LAG-3 is a 70-kDa surface glycoprotein belonging to the Ig superfamily with homology to CD4. LAG-3 binds to MHC class II with higher affinity than CD4 and is thought to be involved in the negative regulation of T cell activation and homeostatic proliferation. Surface expression of LAG-3 has been reported on activated T cells (including regulatory T cells) and NK cells. CD8+ T cells usually express LAG-3 at significantly higher levels than CD4+ T cells. Coexpression of LAG-3 and CD49b has been proposed to identify human and mouse Type 1 regulatory T cells (Tr1 cells).
This 3DS223H antibody will recognize a formaldehyde-fixed epitope.
Applications Reported: This 3DS223H antibody has been reported for use in flow cytometric analysis.
Applications Tested: This 3DS223H antibody has been pre-diluted and tested by flow cytometric analysis of stimulated normal human peripheral blood cells. This may be used at 5 µL (0.5 µg) per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test.
Brilliant Ultra Violet™ 737 (BUV737) is a tandem dye that emits at 732 nm and is intended for use on cytometers equipped with an ultraviolet (355 nm) laser. Please make sure that your instrument is capable of detecting this fluorochrome.
When using two or more Super Bright, Brilliant Violet™, Brilliant Ultra Violet™, or other polymer dye-conjugated antibodies in a staining panel, it is recommended to use Super Bright Complete Staining Buffer (Product # SB-4401) or Brilliant Stain Buffer (Product # 00-4409-75) to minimize any non-specific polymer interactions. Please refer to the datasheet for Super Bright Staining Buffer or Brilliant Stain Buffer for more information.
Light sensitivity: This tandem dye is sensitive to photo-induced oxidation. Please protect this vial and stained samples from light.
Fixation: Samples can be stored in IC Fixation Buffer (Product # 00-8222) (100 µL of cell sample + 100 µL of IC Fixation Buffer) or 1-step Fix/Lyse Solution (Product # 00-5333) for up to 3 days in the dark at 4°C with minimal impact on brightness and FRET efficiency/compensation. Some generalizations regarding fluorophore performance after fixation can be made, but clone specific performance should be determined empirically.
Our internal testing suggests that Brilliant Ultra Violet™ 737 (BUV737) is compatible with short-term methanol-based fixation, but should not be stored in buffers containing methanol for longer than one hour.
Excitation: 355 nm; Emission: 732 nm; Laser: Ultraviolet Laser.
BRILLIANT ULTRA VIOLET™ is a trademark or registered trademark of Becton, Dickinson and Company or its affiliates, and is used under license. Powered by Sirigen™.
Target Information
LAG-3 is a 70-kDa surface glycoprotein belonging to the Ig superfamily with homology to CD4. LAG-3 binds to MHC class II with higher affinity than CD4 and is thought to be involved in the negative regulation of T cell activation and homeostatic proliferation. Surface expression of LAG-3 has been reported on activated T cells (including regulatory T cells) and NK cells. CD8+ T cells usually express LAG-3 at significantly higher levels than CD4+ T cells. Coexpression of LAG-3 and CD49b has been proposed to identify human and mouse Type 1 regulatory T cells (Tr1 cells).
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: CD223; LAG-3; Lymphocyte activation gene 3 protein; lymphocyte-activation gene 3; sLAG 3; sLAG3; soluble LAG 3lymphocyte activating 3; soluble LAG3
Gene Aliases: CD223; FDC; LAG3
UniProt ID: (Human) P18627
Entrez Gene ID: (Human) 3902
Performance Guarantee
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