Biolegend, 387505, Ultra-LEAF™ Purified anti-human CD275 (B7-H2, ICOSL) Antibody, 100μg

B7-H2, a member of the B7 family and the immunoglobulin superfamily, is a 40 kD protein also known as B7RP-1, B7h, B7-H2, GL50 and ICOS Ligand. Human B7-H2 is expressed by B lymphocytes, activated monocytes/macrophages, and dendritic cells. B7-H2 binds to a CD28-like receptor, inducible costimulator molecule (ICOS, AILIM, CRP-1), which is expressed by activated T cells. The interaction of ICOS with B7-H2 plays an important role in the T cell costimulation pathway.
100μg
Verified Reactivity: Human
Antibody Type: Monoclonal
Host Species: Rat
Immunogen: Human B7-H2 recombinant protein (19-258 aa)
Formulation: 0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative.
Endotoxin Level: Less than 0.01 EU/µg of the protein (< 0.001 ng/µg of the protein) as determined by the LAL test.
Preparation: The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
Concentration: The antibody is bottled at the concentration indicated on the vial, typically between 2 mg/mL and 3 mg/mL. To obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
Application: Block - Quality tested
Recommended Usage: Each lot of this antibody is quality control tested by blocking the binding of 0.04 μg/mL Biotinylated Recombinant Human B7-H2 (ICOSL)-Fc chimera to 1 μg/mL immobilized human ICOS-Fc chimera. ND50 range: 0.01-0.07 µg/mL. It is recommended that the reagent be titrated for optimal performance for each application.
Application Notes: Clone W21036I completely blocks clone 9F.8A4 but does not block clone 2D3.
RRID: AB_3083390 (BioLegend Cat. No. 387505) AB_3083390 (BioLegend Cat. No. 387506)
Structure: Ig superfamily, B7 family, 40 kD
Distribution: B cells and dendritic cells
Function: Binds ICOS on antigen-activated T cells and mediates proliferation and cytokine production
Interaction: B cells, Dendritic cells
Ligand/Receptor: ICOS
Cell Type: B cells, Dendritic cells
Biology Area: Costimulatory Molecules, Immunology
Molecular Family: CD Molecules
Antigen References: Wang S, et al. 2002. J Biol Chem. 96:2808. Wong SC, et al. 2003. Blood. 102:1831.
Gene ID: 23308
UniProt: View information about CD275 on UniProt.org
Clone: W21036I
Regulatory Status: RUO
Other Names: B7 homolog 2 (B7H2), GL50, B7 related protein 1 (B7RP1), CD275, inducible T cell costimulator ligand ICOS Ligand), LICOS, ICOSLG
Isotype: Rat IgG2a, κ
Q: Do you guarantee that your antibodies are totally pathogen free?
A: BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.
Q: Does BioLegend test each Ultra-LEAF™ antibody by functional assay?
A: No, BioLegend does not test Ultra-LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.
Q: Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?
A: No, BioLegend does not test for pathogens in-house unless otherwise indicated.  However, we can recommend an outside vendor to perform this testing as needed.
Q: Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?
A: We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.