Mouse PD-L1/B7-H1 Antibody

Recombinant Monoclonal Antibody
Catalog # Availability Size / Price Qty
MAB90783-100
MAB90783-SP
Detection of Mouse PD-L1/B7-H1 by Western Blot.
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Product Details
Citations (1)
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Mouse PD-L1/B7-H1 Antibody Summary

Species Reactivity
Mouse
Specificity
Detects mouse PD-L1/B7-H1 in direct ELISAs.
Source
Recombinant Monoclonal Rabbit IgG Clone # 2341A
Purification
Protein A or G purified from cell culture supernatant
Immunogen
Mouse myeloma cell line NS0-derived recombinant mouse PD-L1/B7-H1
Phe19-His239
Accession # Q9EP73
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
2 µg/mL
See below
Flow Cytometry
0.25 µg/106 cells
See below
Blockade of Receptor-ligand Interaction
In a functional ELISA, 0.8-4 µg/mL of this antibody will block 50% of the binding of 1.5 μg/mL of Recombinant Mouse PD-L1/B7-H1 Fc Chimera (Catalog # 1019-B7) to immobilized Recombinant Mouse PD-1 Fc Chimera (Catalog # 1021-PD) coated at 1 µg/mL (100 µL/well). At 10 µg/mL, this antibody will block >90% of the binding.
 
CyTOF-ready
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
 

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot Detection of Mouse PD-L1/B7-H1 antibody by Western Blot. View Larger

Detection of Mouse PD-L1/B7-H1 by Western Blot. Western blot shows lysates of RAW 264.7 mouse monocyte/macrophage cell line untreated (-) or treated (+) with 10 ug/mL LPS for 4 hours. PVDF membrane was probed with 2 µg/mL of Rabbit Anti-Mouse PD-L1/B7-H1 Monoclonal Antibody (Catalog # MAB90783) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for PD-L1/B7-H1 at approximately 55 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Flow Cytometry Detection of PD-L1/B7-H1 antibody in RAW 264.7 Mouse Cell Line antibody by Flow Cytometry. View Larger

Detection of PD-L1/B7-H1 in RAW 264.7 Mouse Cell Line by Flow Cytometry. RAW 264.7 mouse monocyte/macrophage cell line either treated with LPS overnight (filled histogram) or untreated (open histogram) was stained with Rabbit Anti-Mouse PD-L1/B7-H1 Monoclonal Antibody (Catalog # MAB90783), followed by Allophycocyanin-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # F0111). View our protocol for Staining Membrane-associated Proteins. View our protocol for Staining Membrane-associated Proteins.

Flow Cytometry Detection of PD-L1/B7-H1 antibody in HEK293 Human Cell Line Transfected with Mouse PD-L1/B7-H1 and eGFP antibody by Flow Cytometry. View Larger

Detection of PD-L1/B7-H1 in HEK293 Human Cell Line Transfected with Mouse PD-L1/B7-H1 and eGFP by Flow Cytometry. HEK293 human embryonic kidney cell line transfected with either (A) mouse PD-L1/B7-H1 or (B) irrelevant transfectants and eGFP was stained with Rabbit Anti-Mouse PD-L1/B7-H1 Monoclonal Antibody (Catalog # MAB90783) followed by Allophycocyanin-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # F0111). Quadrant markers were set based on control antibody staining (Catalog # MAB1050). View our protocol for Staining Membrane-associated Proteins.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
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Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: PD-L1/B7-H1

Mouse B7 homolog 1(B7-H1), also called programmed death ligand 1 (PD-L1) and programmed cell death 1 ligand 1 (PDCD1L1), is a member of the B7 family of proteins that provide signals for regulating T-cell activation and tolerance (1‑4). Other family members include B7-1, B7-2, B7-H2, B7-H3 and PD-L2. B7 proteins are immunoglobulin (Ig) superfamily members with extracellular Ig-V-like and Ig-C-like domains and a short cytoplasmic region. Among the family members, they share from 20‑40% amino acid (aa) sequence identity. The cloned mouse B7-H1/PD-L1 cDNA encodes a 290 aa type I membrane precursor protein with a putative 18 aa signal peptide, a 220 aa extracellular region containing one V-like and one C-like Ig domain, a 22 aa transmembrane region, and a 30 aa cytoplasmic domain. Mouse and human B7-H1/PD-L1 share approximately 70% aa sequence identity. B7-H1/PD-L1 is one of two ligands for programmed death-1 (PD-1), a member of the CD28 family of immunoreceptors. The other identified ligand is PD-L2. Mouse B7-H1/PD-L1 and PD-L2 share approximately 34% aa sequence identity and have similar functions. B7-H1/PD-L1 is constitutively expressed in various lymphoid and non-lymphoid organs including placenta, heart, pancreas, lung, liver, and endothelium
(1‑4). The expression of B7-H1/PD-L1 is detected on B cells, T cells, monocytes, dendritic cells and thymic epithelial cells. IFN-gamma treatment induces B7-H1/PD-L1 expression in monocytes, dendritic cells, and endothelial cells. B7-H1/PD-L1 expression is also upregulated in a variety of tumor cell lines. On previously activated T cells, B7-H1/PD-L1 interaction with PD-1 inhibits TCR-mediated proliferation and cytokine production, suggesting an inhibitory role in regulating immune responses. In contrast, a costimulatory function for the PD-1 ligands on resting T cells has also been reported (1‑4).

References
  1. Tamura, H. et al. (2001) Blood 97:1809.
  2. Freeman, G. et al. (2000) J. Exp. Med. 192:1027.
  3. Sharpe, A.H. and G. J. Freeman (2002) Nat. Rev. Immunol. 2:116.
  4. Coyle, A. and J. Gutierrez-Ramos (2001) Nat. Immunol. 2:203.
Long Name
Programmed Death Ligand 1
Entrez Gene IDs
29126 (Human); 60533 (Mouse); 499342 (Rat); 574058 (Porcine); 484186 (Canine); 102145573 (Cynomolgus Monkey)
Alternate Names
Avelumab; B7-H; B7H1; B7-H1; B7H1PDCD1L1; CD274 antigenMGC142294; CD274 molecule; CD274; PDCD1L1; PDCD1LG1; PDCD1LG1MGC142296; PDL1; PD-L1; PD-L1B7 homolog 1; PDL1PDCD1 ligand 1; programmed cell death 1 ligand 1; Programmed death ligand 1

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Citation for Mouse PD-L1/B7-H1 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Mechanistic dissection of the PD-L1:B7-1 co-inhibitory immune complex
    Authors: SC Garrett-Th, A Massimi, EV Fedorov, JB Bonanno, L Scandiuzzi, B Hillerich, RD Seidel, JD Love, SJ Garforth, C Guha, SC Almo
    PLoS ONE, 2020-06-04;15(6):e0233578.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: ICC

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