- 10F.9G2 (See other available formats)
- Regulatory Status
- Other Names
- B7-H1, PD-L1
- Rat IgG2b, κ
- Ave. Rating
- Submit a Review
- Product Citations
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CD274, also known as B7-H1 or programmed death ligand 1 (PD-L1), is a 40 kD type I transmembrane protein and a member of the B7 family within the immunoglobulin receptor superfamily. It is expressed on T cells, B cells, NK cells, dendritic cells, IFN-γ activated endothelial cells, and monocytes. B7-H1 is one of the ligands of PD-1. The interaction of B7-H1 with PD-1 plays an important role in the inhibition of T cell responses. Other studies have shown that B7-H1 is able to costimulate T cell growth and cytokine production. CD274 is involved in costimulation essential for T cell proliferation and production of IL-10 and IFN-γ, in an IL-2-dependent and a PD-1-independent manner. Its interaction with PD-1 inhibits T cell proliferation and cytokine production.Product Details
- Antibody Type
- Host Species
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
- The antibody was purified by affinity chromatography and conjugated with APC under optimal conditions.
- 0.2 mg/ml
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
FC - Quality tested
- Recommended Usage
Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤0.25 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.
- Excitation Laser
Red Laser (633 nm)
- Application Notes
Additional reported applications (for the relevant formats) include: immunofluorescence4, blocking6,7,8,9, and immunohistochemistry of acetone-fixed frozen sections4, 11. The LEAF™ purified antibody (Endotoxin <0.1 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. No. 124303). For highly sensitive assays, we recommend Ultra-LEAF™ purified antibody (Cat. No. 124318) with a lower endotoxin limit than standard LEAF™ purified antibodies (Endotoxin <0.01 EU/µg).
(PubMed link indicates BioLegend citation)
- Maier H, et al. 2007. J. Immunol. 178:2714.
- Meng Q, et al. 2006. Invest. Ophthalmol. Vis. Sci. 47:4444. PubMed
- Scarlett UK, et al. 2012. J Exp Med. 209:495. PubMed
- Grabie N, et al. 2007. Circulation 116:2062. (IF, IHC)
- Paterson AM, et al. 2011. J. Immunol. 187:1097.
- Channappanavar R, et al. 2012. PLoS One 7:e39757. (Block)
- Schreiber HA, et al. 2010. PLoS One 5:e11453. (Block) PubMed
- Muthumani K, et al. 2011. J. Immunol. 187:2932. (Block) PubMed
- Cripps JG, et al. 2010. Hepatology 52:1350. (Block) PubMed
- Murakami R, et al. 2013. PLoS One. 8:73270. PubMed
- Riella LV, et al. 2011. Am. J. Transplant 11:832-40. (IHC)
- Lei GS, et al. 2015. Infect Immun. 83:572. PubMed
- Product Citations
AB_10612935 (BioLegend Cat. No. 124311)
AB_10612741 (BioLegend Cat. No. 124312)
- 40 kD type I transmembrane protein member of B7 family within the immunoglobulin receptor superfamily
T cells, B cells, NK cells, dendritic cells, IFN-γ activated endothelial cells, and monocytes
- PD-1 (PDCD1)
- Cell Type
- B cells, Dendritic cells, Endothelial cells, Monocytes, NK cells, T cells
- Biology Area
- Cancer Biomarkers, Costimulatory Molecules, Immunology
- Molecular Family
- Adhesion Molecules, CD Molecules, Immune Checkpoint Receptors
- Antigen References
1. Sharpe A, et al. 2007. Nat. Immunol. 8:239.
2. Dong H, et al. 1999. Nat. Med. 5:1365.
3. Freeman G, et al. 2000. J. Exp. Med. 192:1027.
- Gene ID
- 60533 View all products for this Gene ID
- View information about CD274 on UniProt.org
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