ARG55930

anti-CD274 / PD-L1 antibody

anti-CD274 / PD-L1 antibody for Flow cytometry,ICC/IF,IHC-Formalin-fixed paraffin-embedded sections,Western blot and Human,Mouse

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Overview

Product Description Rabbit Polyclonal antibody recognizes CD274 / PD-L1
Tested Reactivity Hu, Ms
Predict Reactivity Rat
Tested Application FACS, ICC/IF, IHC-P, WB
Specificity This antibody has no cross-reactivity to PD-L2.
Host Rabbit
Clonality Polyclonal
Isotype IgG
Target Name CD274 / PD-L1
Immunogen Synthetic peptide (17 aa) within aa. 60-110 of Human CD274 / PD-L1.
Conjugation Un-conjugated
Alternate Names Programmed cell death 1 ligand 1; B7-H1; B7H1; PDL1; PDCD1 ligand 1; B7 homolog 1; PD-L1; CD antigen CD274; PDCD1L1; B7-H; Programmed death ligand 1; PDCD1LG1

Application Instructions

Application Suggestion
Tested Application Dilution
FACS0.5 µg/ml
ICC/IF20 µg/ml
IHC-P2.5 µg/ml
WB0.5 - 1 µg/ml
Application Note * The dilutions indicate recommended starting dilutions and the optimal dilutions or concentrations should be determined by the scientist.
Positive Control Raji cell lysate

Properties

Form Liquid
Purification Affinity purification with immunogen.
Buffer PBS and 0.02% Sodium azide
Preservative 0.02% Sodium azide
Concentration 1 mg/ml
Storage Instruction For continuous use, store undiluted antibody at 2-8°C for up to a week. For long-term storage, aliquot and store at -20°C or below. Storage in frost free freezers is not recommended. Avoid repeated freeze/thaw cycles. Suggest spin the vial prior to opening. The antibody solution should be gently mixed before use.
Note For laboratory research only, not for drug, diagnostic or other use.

Bioinformation

Database Links

GeneID: 29126 Human CD274

GeneID: 60533 Mouse CD274

Swiss-port # Q9EP73 Mouse Programmed cell death 1 ligand 1

Swiss-port # Q9NZQ7 Human Programmed cell death 1 ligand 1

Gene Symbol CD274
Gene Full Name CD274 molecule
Background CD274 / PD-L1 is an immune inhibitory receptor ligand. It is expressed by hematopoietic and non-hematopoietic cells, such as T cells and B cells and various types of tumor cells. The encoded protein is a type I transmembrane protein that has immunoglobulin V-like and C-like domains. Interaction of this ligand with its receptor inhibits T-cell activation and cytokine production. During infection or inflammation of normal tissue, this interaction is important for preventing autoimmunity by maintaining homeostasis of the immune response. In tumor microenvironments, this interaction provides an immune escape for tumor cells through cytotoxic T-cell inactivation. Expression of this gene in tumor cells is considered to be prognostic in many types of human malignancies, including colon cancer and renal cell carcinoma. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2015]
Function CD274 / PD-L1 plays a critical role in induction and maintenance of immune tolerance to self (PubMed:11015443, PubMed:28813417, PubMed:28813410). As a ligand for the inhibitory receptor PDCD1/PD-1, modulates the activation threshold of T-cells and limits T-cell effector response (PubMed:11015443, PubMed:28813417, PubMed:28813410). Through a yet unknown activating receptor, may costimulate T-cell subsets that predominantly produce interleukin-10 (IL10) (PubMed:10581077).

The PDCD1-mediated inhibitory pathway is exploited by tumors to attenuate anti-tumor immunity and escape destruction by the immune system, thereby facilitating tumor survival (PubMed:28813417, PubMed:28813410). The interaction with PDCD1/PD-1 inhibits cytotoxic T lymphocytes (CTLs) effector function. The blockage of the PDCD1-mediated pathway results in the reversal of the exhausted T-cell phenotype and the normalization of the anti-tumor response, providing a rationale for cancer immunotherapy. [UniProt]
Cellular Localization Cell membrane and Endomembrane system.
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Calculated MW 33 kDa

Images (5) Click the Picture to Zoom In

  • ARG55930 anti-CD274 / PD-L1 antibody WB image

    Western blot: 20 µg of Raw264.7 cells untreated or treated with LPS. The blots were stained with ARG55930 anti-CD274 / PD-L1 antibody at 1:1000 dilution.

  • ARG55930 anti-CD274 / PD-L1 antibody FACS image

    Flow Cytometry: A-20 cells stained with ARG55930 anti-CD274 / PD-L1 antibody at 0.5 µg/ml dilution (red); Isotype control (green).

  • ARG55930 anti-CD274 / PD-L1 antibody IHC-P image

    Immunohistochemistry: Human tonsil tissue stained with ARG55930 anti-CD274 / PD-L1 antibody at 5 µg/ml.

  • ARG55930 anti-CD274 / PD-L1 antibody WB image

    Western blot: 10 µg of lysate from HeLa cell transfected with 1) siPD-L1 or 2) control siRNA stained with ARG55930 anti-CD274 / PD-L1 antibody at 1:500 dilution.

  • ARG55930 anti-CD274 / PD-L1 antibody IF image

    Immunofluorescence: Human Heart cells stained with ARG55930 anti-CD274 / PD-L1 antibody at 20 µg/ml dilution.

Customer's Feedback

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Review for anti-CD274 / PD-L1 antibody

Application:WB

Sample:HeLa and Jurkat

Sample Loading Amount:30 µg

Primary Antibody Dilution Factor:1:1000

Primary Antibody Incubation Time:overnight

Primary Antibody Incubation Temperature:4 ºC

nuts_pic      Excellent

Review for anti-CD274 / PD-L1 antibody

Application:WB

Sample:Raw264.7 cells untreated or treated with LPS

Sample Loading Amount:20 µg

Primary Antibody Dilution Factor:1:1000

Primary Antibody Incubation Time:overnight

Primary Antibody Incubation Temperature:4 ºC

nuts_pic      Good

Review for anti-CD274 / PD-L1 antibody

Application:WB

Sample:HepG2 and HCT116

Sample Loading Amount:30 µg

Primary Antibody Dilution Factor:1:1000

Primary Antibody Incubation Time:overnight

Primary Antibody Incubation Temperature:4 ºC

Specific References

Triptolide suppresses oral cancer cell PD-L1 expression in the interferon-γ-modulated microenvironment in vitro, in vivo, and in clinical patients.

WB / Human

Chin-Shan Kuo et al.
Biomed Pharmacother.,  (2021)

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Analysis of Blimp-1 and PD-1/PD-L1 Immune Checkpoint in an Autoimmune Thyroiditis Animal Model.

WB, IHC-P / Mouse

Zhang Xue et al.
International Journal of Endocrinology.,  (2020)

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