Ultra-LEAF™ Purified anti-mouse CD279 (PD-1) Antibody

Product Details

Verified Reactivity

Mouse

Antibody Type

Monoclonal

Host Species

Rat

Immunogen

Mouse PD-1 transfected BHK 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
IHC, WB, FA - 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 ≤1.0 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 relevant formats of this clone) include: immunohistochemical staining of acetone-fixed frozen sections¹, Western blotting^2,6, inhibition of macrophages (but not B cells and dendritic cells) costimulated T cell proliferation^3,5, and blocking the binding of PD-1 to B7-H1 or B7-DC^3,4,8. The LEAF™ purified antibody (Endotoxin <0.1 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. No. 114108). For highly sensitive assays, we recommend Ultra-LEAF™ purified antibody (Cat. No. 114110) with a lower endotoxin limit than standard LEAF™ purified antibodies.

Application References

(PubMed link indicates BioLegend citation)

1. Kanai, T., et al. 2003. J. Immunol. 171:4156. (FC, IHC)
2. Personal Communication (WB)
3. Yamazaki, T., et al. 2005. J. Immunol. 175:1586. (Costim)
4. Matsumoto, K., et al. 2004. J. Immunol. 172:2530. (Block)
5. Terrazas, L. I., et al. 2005. Intl. J. Parasitology. 35:1349. (Costim)
6. Meng, Q., et al. 2006. Invest Opthalmol Vis Sci. 47:444. (FC, WB) PubMed
7. Tsang JY, et al. 2011. Int Immunopharmacol. 11:604. PubMed
8. Takamura S, et al. 2010. J. Immunol. 184:4696. PubMed (Block)

Product Citations

1. Zhou M, et al. 2020. JCI Insight. :5. PubMed
2. Godoy–Calderón MJ, et al. 2019. Oncotarget. 4.9625. PubMed
3. Hardcastle J, et al. 2016. Neuro Oncology. 10.1093/neuonc/now179. PubMed
4. Dheilly E, et al. 2020. Cancer Cell. 37(5):674-689. PubMed

RRID

AB_2800575 (BioLegend Cat. No. 114121)
AB_2800575 (BioLegend Cat. No. 114122)
AB_2800575 (BioLegend Cat. No. 114120)
AB_2800575 (BioLegend Cat. No. 114109)
AB_2800575 (BioLegend Cat. No. 114110)
AB_2800575 (BioLegend Cat. No. 114119)

Antigen Details

Structure

Ig superfamily, 50-55 kD

Distribution

Subset of double negative thymocytes, activated T and B cells

Function

Lymphocyte clonal selection, peripheral tolerance

Ligand/Receptor

PD-L1 (B7-H1), PD-L2

Cell Type

B cells, T cells, Thymocytes, Tregs

Biology Area

Apoptosis/Tumor Suppressors/Cell Death, Cancer Biomarkers, Cell Biology, Immunology, Inhibitory Molecules

Molecular Family

CD Molecules, Immune Checkpoint Receptors

Antigen References

1. Barclay A, et al. 1997. The Leukocyte Antigen FactsBook, Academic Press.
2. Agata Y, et al. 1996. Int. Immunol. 8:765.
3. Nishimura H, et al. 2001. Science 291:319.
4. Ishida Y, et al. 1992. EMBO J. 11:3887.

Gene ID

18566 View all products for this Gene ID

Specificity (DOES NOT SHOW ON TDS):

CD279

Specificity Alt (DOES NOT SHOW ON TDS):

CD279

App Abbreviation (DOES NOT SHOW ON TDS):

FC,IHC,WB,FA

UniProt

View information about CD279 on UniProt.org

Documentation

• Technical Data Sheet (pdf)
• Certificate of Analysis
• Safety Data Sheet

Reviews

Related Protocols

• Cell Surface Flow Cytometry Staining Protocol

Related Pages & Pathways

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.

Other Formats

Certificate of Analysis