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PD-1/PD-L1 (human) AlphaLISA Binding Kit, 100 Assay Points

The AlphaLISA® human PD-1/PD-L1 binding kit is designed for the detection of binding activity between human PD-1 and PD-L1, using a fast and simple homogeneous AlphaLISA assay (no wash steps). This assay can be used to screen for small molecules that inhibit binding, as a competitive ligand binding (CLB) assay to screen therapeutic blocking antibodies, and for potency assays.

For research use only; not for diagnostic procedures. All products to be used in accordance with applicable laws and regulations including without limitation, consumption & disposal requirements under European REACH regulations (EC 1907/2006).

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產品尺寸
AL356HV
100 assay points
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AL356C
500 assay points
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AL356F
5,000 assay points
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詳細信息

This kit is designed for the detection of binding activity between PD-1 and PD-L1 using a homogeneous AlphaLISA assay (no wash steps). This assay can facilitate the design and development of therapetics by using competitive binding.

Features:

  • No-wash steps, no separation steps
  • Ease-of-use: few addition steps, fast assay development
  • Broad range of affinities: detect strong or weak interactions, from pM to mM affinity
  • Distance: measure very large protein or antibody complexes – spanning up to 200 nm or more
  • High avidity: multiple binding sites on each bead enables use of nanomolar concentrations of antibodies or proteins, as well as use of low affinity binders

AlphaLISA technology allows the detection of molecules of interest in buffer, cell culture media, serum and plasma in a highly sensitive, quantitative, reproducible and user-friendly mode. In an AlphaLISA assay, a biotinylated PD-1 binds to the Streptavidin-coated Alpha Donor beads, while His tagged PD-L1 is captured by Anti-His AlphaLISA Acceptor beads. When PD-L1 binding to PD-1 happens, Donor beads and Acceptor beads come into close proximity. The excitation of the Donor beads provokes the release of singlet oxygen molecules that triggers a cascade of energy transfer in the Acceptor beads, resulting in a sharp peak of light emission at 615 nm.

Programmed death ligand 1 (PD-L1), also known as "cluster of differentiation 274" (CD274) or B7 homolog1 (B7-H1) belongs to the growing B7 family of immune proteins and is expressed in tumor cells. PD-L1 binds to its receptor, PD-1, found on activated T cells, B cells, and myeloid cells, to modulate activation or inhibition. By binding to PD-1, PD-L1 may inhibit ongoing T-cell responses by inducing apoptosis and arresting cell-cycle progression and thus contribute to cancer growth. Monoclonal antibodies targeting PD-1 and PD-L1 are being developed as a means to boost the immune system for the treatment of non-small-cell lung cancer, melanoma, bladder, renal, and triple-negative breast cancers.

規格

檢測目標 PD-1, PD-L1
檢測目標類 Protein
自動化兼容 Yes
檢測方法 Alpha
實驗類型 In vitro
Format Microplates
產品品牌名稱 AlphaLISA
運輸條件 藍冰
治療領域 Oncology
產品尺寸 100 assay points
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應用文獻

Evaluating the Specificity of PD-1 and PD-L1 Blocking Antibodies Using AlphaLISA Human and Mouse PD-1/PD-L1 Binding Kits

Mouse pharmacological models continue to play a large role in the study of human disease, and mouse tool reagents have shown high utility in immunology and cancer research for decades. It can often be quicker to learn about immunology and the regulation of immune responses using a syngeneic mouse mo ...

PDF 1 MB
Utilizing AlphaLISA Technology to Screen for Inhibitors of the CTLA-4 Immune Checkpoint

Immune checkpoints serve a critical role in the immune system to prevent autoimmunity and manage the degree and duration of an immune response. Cytotoxic T-Lymphocyte-associated protein 4 (CTLA-4 or CD152) is an inhibitory transmembrane protein involved in an immune checkpoint of significant inte ...

PDF 1 MB
Screening for Inhibitors of PD-1 and PD-L1 Binding with AlphaLISA Technology

Many tumor cells, which under normal, healthy conditions would be recognized by the body’s T cells and thereby targeted for destruction, have developed ways to evade the host immune system by taking advantage of immune checkpoint pathways. Among the most promising approaches to activating therapeuti ...

PDF 1 MB
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