Human PD-L1/B7-H1 Biotinylated Antibody

Catalog # Availability Size / Price Qty
BAF156
Product Details
Citations (3)
FAQs
Supplemental Products
Reviews (1)

Human PD-L1/B7-H1 Biotinylated Antibody Summary

Species Reactivity
Human
Specificity
Detects human PD-L1/B7-H1 extracellular domain in Western blots. In Western blots, less than 1% cross-reactivity with recombinant human (rh) B7RP-1, rhB7‑1, rhB7‑2 is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
Mouse myeloma cell line NS0-derived recombinant human PD-L1/B7-H1
Phe19-Thr239
Accession # Q9NZQ7
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Label
Biotin

Applications

Recommended Concentration
Sample
Western Blot
0.1 µg/mL
Recombinant Human PD-L1/B7-H1 Fc Chimera (Catalog # 156-B7)

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.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
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

Human B7 homolog 1 (B7-H1), also called programmed cell death 1 ligand 1 (PDCD1L1) and programmed death ligand 1 (PDL1), is a member of the growing B7 family of immune proteins that provide signals for both stimulating and inhibiting T cell activation. Other family members include B7-1, B7-2, B7-H2, PDL2 and B7-H3. B7 proteins are members of the immunoglobulin (Ig) superfamily, their extracellular domains contain 2 Ig-like domains and all members have short cytoplasmic domains. Among the family members, they share about 20 - 25% amino acid identity. Human and mouse B7-H1 share approximately 70% amino acid sequence identity. B7-H1 has been identified as one of two ligands for programmed death-1 (PD-1), a member of the CD28 family of immunoreceptors. The B7-H1 gene encodes a 290 amino acid (aa) type I membrane precursor protein with a putative 18 aa signal peptide, a 221 aa extracellular domain, a 21 aa transmembrane region, and a 31 aa cytoplasmic domain. Human B7-H1 is constitutively expressed in several organs such as heart, skeletal muscle, placenta and lung, and in lower amounts in thymus, spleen, kidney and liver. B7-H1 expression is upregulated in a small fraction of activated T and B cells and a much larger fraction of activated monocytes. B7-H1 expression is also induced in dendritic cells and keratinocytes after IFN-gamma stimulation. Interaction of B7-H1 with PD-1 results in inhibition of TCR-mediated proliferation and cytokine production. The B7-H1:PD-1 pathway is involved in the negative regulation of some immune responses and may play an important role in the regulation of peripheral tolerance.

References
  1. Nishimura, H. and T. Honjo (2001) Trends in Immunology 22:265.
  2. Freeman, G.J. et al. (2000) J. Exp. Med. 192:1027.
  3. Latchman, Y. et al. (2001) Nat. Immunol. 2:261.
Long Name
Programmed Death Ligand 1
Entrez Gene IDs
29126 (Human); 60533 (Mouse); 499342 (Rat); 484186 (Canine); 102145573 (Cynomolgus Monkey)
Alternate Names
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

Product Datasheets

Citations for Human PD-L1/B7-H1 Biotinylated 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.

3 Citations: Showing 1 - 3
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  1. Bifunctional immune checkpoint-targeted antibody-ligand traps that simultaneously disable TGF? enhance the efficacy of cancer immunotherapy
    Authors: R Ravi, KA Noonan, V Pham, R Bedi, A Zhavoronko, IV Ozerov, E Makarev, A V Artemov, PT Wysocki, R Mehra, S Nimmagadda, L Marchionni, D Sidransky, IM Borrello, E Izumchenko, A Bedi
    Nat Commun, 2018;9(1):741.
    Applications: ELISA detection
  2. Soluble PD-L1 as a biomarker in malignant melanoma and checkpoint blockade
    Authors: J Zhou, KM Mahoney, A Giobbie-Hu, F Zhao, S Lee, X Liao, S Rodig, J Li, X Wu, LH Butterfiel, M Piesche, MP Manos, LM Eastman, G Dranoff, GJ Freeman, FS Hodi
    Cancer Immunol Res, 2017;0(0):.
    Species: Human
    Sample Types: Cell Culture Supernates
    Applications: Western Blot
  3. Increased B7-H1 expression on dendritic cells correlates with programmed death 1 expression on T cells in simian immunodeficiency virus-infected macaques and may contribute to T cell dysfunction and disease progression.
    Authors: Xu H, Wang X, Pahar B
    J. Immunol., 2010;185(12):7340-8.
    Species: Primate - Macaca mulatta (Rhesus Macaque)
    Sample Types: Whole Cells
    Applications: Flow Cytometry

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Human PD-L1/B7-H1 Biotinylated Antibody
By Anonymous on 04/13/2018
Application: IHC Sample Tested: Tumor cell lyastes Species: Human