PD-1 [Biotinylated] : PD-L1 Inhibitor Screening ELISA Assay Pair

Introduction:

Immune checkpoint pathway is a focal point of today’s cancer research. PD-1 is one of the best characterized checkpoint proteins. The binding between PD-1 and its ligand PD-L1 suppresses T-cell activation and allows cancer cells to escape from body’s immune surveillance. Therefore, the pharmaceutical inhibition of PD-1 or its ligand has been considered a promising strategy by many oncologists.

Application:

This pair is useful for screening for inhibitors of human PD-1 binding to human PD-L1.

Reconstitution

See Certificate of Analysis for details of reconstitution instruction and specific concentration.

Storage:

See Certificate of Analysis for details of storage conditions.

Be sure to store each component at the proper tempe rature upon arrival

Avoid freeze/thaw cycles upon reconstituted.

Stability:

No activity loss was observed after storage at:
-80°C for 1 year in lyophilized state after receipt.-80°C for 2 months under sterile conditions after reconstitution.

Description:

This inhibitor screening ELISA pair is designed to facilitate the identification and characterization of new PD-1 pathway inhibitors. The assay takes advantage of our in house-developed binding of biotinylated human PD-1 to immobilized human PD-L1 in a functional ELISA assay, and employs a simple colorimetric sandwich ELISA platform. Briefly, we provide you with a human PD-1-Biotin protein, a human PD-L1 protein, an anti-PD-1 neutralizing antibody (as method verified Std.), and streptavidin-HRP reagent. Your experiment will include 4 simple steps: a) Coat the plate with human PD-L1. b) Add your molecule of interest to the tests. c) Add Human PD-1-Biotin to bind the coated human PD-L1. d) Add Streptavidin-HRP followed by TMB or other colorimetric HRP substrate. Finally, the ability of your compound to inhibit PD-1 : PD-L1 binding will be determined by comparing OD readings among different experimental groups.
 

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