Biolegend, 124352, Spark PLUS B550™ anti-mouse CD274 (B7-H1, PD-L1) Antibody, 100μg

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.
100μg
Verified Reactivity: Mouse
Antibody Type: Monoclonal
Host Species: Rat
Formulation: Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide
Preparation: The antibody was purified by affinity chromatography and conjugated with Spark PLUS B550™ under optimal conditions.
Concentration: 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.
Application: 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 ≤ 0.5 µg per million cells in 100 µL volume. It is recommended that the reagent be titrated for optimal performance for each application. * Spark PLUS B550™ has a maximum excitation of 516 nm and a maximum emission of 540 nm.
Excitation Laser: Blue Laser (488 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).
Application References(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
RRID: AB_3683153 (BioLegend Cat. No. 124351) AB_3683153 (BioLegend Cat. No. 124352)
Structure: 40 kD type I transmembrane protein member of B7 family within the immunoglobulin receptor superfamily
Distribution: T cells, B cells, NK cells, dendritic cells, IFN-γ activated endothelial cells, and monocytes
Ligand/Receptor: 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
UniProt: View information about CD274 on UniProt.org
Clone: 10F.9G2
Regulatory Status: RUO
Other Names: B7-H1, PD-L1
Isotype: Rat IgG2b, κ