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Ultra-LEAF™ Purified anti-human CD274 (B7-H1, PD-L1) Antibody

Pricing & Availability
Clone
MIH3 (See other available formats)
Regulatory Status
RUO
Other Names
Programmed cell death ligand 1 (PD-L1), B7 homolog 1 (B7-H1), B7-H, B7H1, PDL1, PDCD1L1, PDCD1LG1
Isotype
Mouse IgG1, κ
Ave. Rating
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Product Citations
publications
MIH3_ULEAF_CD274_Antibody_083017
Human PBMCs were activated for 3 days with PHA and then stained with Ultra-LEAF™ Purified CD274 (clone MIH3, filled histogram) or purified mouse IgG1, κ isotype control (open histogram), followed by anti-mouse IgG PE.
  • MIH3_ULEAF_CD274_Antibody_083017
    Human PBMCs were activated for 3 days with PHA and then stained with Ultra-LEAF™ Purified CD274 (clone MIH3, filled histogram) or purified mouse IgG1, κ isotype control (open histogram), followed by anti-mouse IgG PE.
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374502 100 µg 199€
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374503 1 mg 595€
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Description

CD274, also known as PD-L1 and B7-H1, is type I transmembrane glycoprotein that serves as a ligand for CD279 (PD-1). This interaction is believed to regulate the balance between the stimulatory and inhibitory signals needed for responses to microbes and maintenance of self-tolerance. CD274 is involved in the costimulation of T cell proliferation and IL-10 and IFN-γ production in an IL-2-dependent and CD279-independent manner. Conflicting data has shown that CD274 can inhibit T cell proliferation and cytokine production, and alternatively, enhance T cell activation. Other studies suggest that CD274 may signal bidirectionally, raising interesting implications for its expression in a wide variety of cell types, including T and B cells, antigen-presenting cells, and non-hematopoietic cells.

Product Details
Technical Data Sheet (pdf)

Product Details

Verified Reactivity
Human
Antibody Type
Monoclonal
Host Species
Mouse
Immunogen
Human PD-L1-transfected cells.
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
Block - Reported in the literature, not verified in house
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 or 100 µl of whole blood. It is recommended that the reagent be titrated for optimal performance for each application.

Application Notes

Additional reported applications (for the relevant formats) include blocking1, 2.

Clone MIH3 blocks the binding of PD-L1 with PD-1 , but did not block the binding of PD-L1 with B7-1 (CD80).

Application References

(PubMed link indicates BioLegend citation)
  1. Haile S.T, et al. 2014. Cancer Immunol Res. 2:1. (Block)
  2. Butte M.J, et al. 2008. Mol Immunol. 45:3567. (Block)
RRID
AB_2715967 (BioLegend Cat. No. 374502)
AB_2715968 (BioLegend Cat. No. 374503)

Antigen Details

Structure
Type 1 transmembrane protein, member of the B7 family, 40kD.
Distribution

T cells, B cells, NK cells, monocytes/macrophages, granulocytes and dendritic cells.

Function
CD274 is involved in the costimulatory signal, essential for T lymphocyte proliferation and production of IL-10 and IFN-γ, in an IL-2-dependent and a PD-1-CD1-independent manner. Its interaction with PD-1-CD1 inhibits T-cell proliferation and cytokine production.
Ligand/Receptor
PD-1 (CD279), B7-1 (CD80).
Cell Type
T cells, B cells, NK cells, Monocytes, Macrophages, Granulocytes, Dendritic cells
Biology Area
Immunology, Cancer Biomarkers, Costimulatory Molecules
Molecular Family
Adhesion Molecules, CD Molecules, Immune Checkpoint Receptors
Antigen References

1. Khan AR, et al. 2015. Nat Commun. 6:5997.
2. Kiyasu J, et al. 2015. Blood. 126:2193.
3. Herold M, et al. 2015 J Immunol. 195:3584.
4. Buddhisa S, et al. 2015. J Immunol. 194:4413.

Gene ID
29126 View all products for this Gene ID
UniProt
View information about CD274 on UniProt.org

Related FAQs

Do you guarantee that your antibodies are totally pathogen free?

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?

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?

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?

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.

Go To Top Version: 0    Revision Date: 09/01/2017

For Research Use Only. Not for diagnostic or therapeutic use.

 

This product is supplied subject to the terms and conditions, including the limited license, located at www.biolegend.com/terms) ("Terms") and may be used only as provided in the Terms. Without limiting the foregoing, BioLegend products may not be used for any Commercial Purpose as defined in the Terms, resold in any form, used in manufacturing, or reverse engineered, sequenced, or otherwise studied or used to learn its design or composition without express written approval of BioLegend. Regardless of the information given in this document, user is solely responsible for determining any license requirements necessary for user’s intended use and assumes all risk and liability arising from use of the product. BioLegend is not responsible for patent infringement or any other risks or liabilities whatsoever resulting from the use of its products.

 

BioLegend, the BioLegend logo, and all other trademarks are property of BioLegend, Inc. or their respective owners, and all rights are reserved.

 

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Toll-Free Phone: 1-877-Bio-Legend (246-5343) Phone: (858) 768-5800 Fax: (877) 455-9587

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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