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- Clone
- QA17A31 (See other available formats)
- Regulatory Status
- RUO
- Other Names
- Inducible Costimulator, H4
- Isotype
- Mouse IgG1, κ
- Ave. Rating
- Submit a Review
- Product Citations
- publications
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PHA-stimulated (three days) human peripheral blood lymphocytes were stained with CD3 PE and Ultra-LEAF™ Purified CD278 (ICOS) (clone QA17A31, left) or Ultra-LEAF™ Purified mouse IgG1, κ isotype control (right), followed by anti-mouse IgG Alexa Fluor® 647.
| Cat # | Size | Price | Quantity Check Availability | Save | ||
|---|---|---|---|---|---|---|
| 396503 | 100 µg | 252€ | ||||
| 396504 | 1 mg | 555€ | ||||
Select size of product is eligible for a 40% discount! Promotion valid until December 31, 2024. Exclusions apply. To view full promotion terms and conditions or to contact your local BioLegend representative to receive a quote, visit our webpage.
ICOS, also known as inducible costimulatory molecule and H4, is a 47-57 kD protein. This protein is homologous to the CD28/CTLA-4 proteins. ICOS is expressed on activated T cells and a subset of thymocytes. It is able to costimulate T cells proliferation. In addition, ICOS is involved in humoral immune responses (B cell germinal center formation). The ICOS ligand is B7h/B7RP-1 or B7-H2. ICOS stimulation has been shown to potentiate TCR-mediated IL-4 and IL-10 production and has been proposed to play a role in Th2 cell development.
Product DetailsProduct Details
- Verified Reactivity
- Human, Mouse, Rat
- Antibody Type
- Recombinant
- Host Species
- Mouse
- Immunogen
- Mouse T cell clone D10.G4.1
- 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. Older lots may have also been bottled at 1 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
-
FC - Quality tested
- Recommended Usage
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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 ≤ 0.125 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.
- RRID
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AB_2810604 (BioLegend Cat. No. 396503)
AB_2810604 (BioLegend Cat. No. 396504)
Antigen Details
- Structure
- CD28/CTLA-4, 47-57 kD
- Distribution
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Activated T cells, subset of thymocytes
- Function
- Costimulates T cell activation, proliferation, humoral immune response
- Ligand/Receptor
- B7h/B7RP-1/GL-50/CD275
- Antigen References
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- Redoglia V, et al. 1996. Eur. J. Immunol. 26:2781.
- Hutloff A, et al. 1999. Nature 397:263.
- Buonfiglio D, et al. 2000. Eur. J. Immunol. 30:3463.
- Coyle AJ, et al. 2000. Immunity 13:95.
- Gene ID
- 10048841 View all products for this Gene ID 29851 View all products for this Gene ID 64545 View all products for this Gene ID
- UniProt
- View information about CD278 on UniProt.org
Related FAQs
- Do you guarantee that your antibodies are totally pathogen free?
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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.
- Does BioLegend test each Ultra-LEAF™ antibody by functional assay?
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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.
- Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?
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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.
- Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?
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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.
Other Formats
View All CD278 Reagents Request Custom Conjugation| Description | Clone | Applications |
|---|---|---|
| Ultra-LEAF™ Purified anti-human/mouse/rat CD278 (ICOS) Recombinant Antibody | QA17A31 | FC |
Compare Data Across All Formats
This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.
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Ultra-LEAF™ Purified anti-human/mouse/rat CD278 (ICOS) Recombinant Antibody
PHA-stimulated (three days) human peripheral blood lymphocyt...
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