The PD-1:PD-L2 TR-FRET Assay Kit is designed to measure the inhibition of PD-1 binding to PD-L2 in a homogeneous 384 reaction format. Cell signaling through the PD-1 receptor upon binding the PD-L2 ligand attenuates immune responses and is exploited by both tumors and viruses. This FRET-based assay requires no time-consuming washing steps, making it especially suitable for high throughput screening applications. The assay procedure is straightforward and simple; a sample containing europium-labeled (Eu) PD-1, dye-labeled acceptor, biotin-labeled PD-L2, and an inhibitor is incubated for two hours. Then, the fluorescence intensity is measured using a fluorescence reader.

HTRF

This kit comes in a convenient 384-well format, with Europium-labeled PD-1 and biotin-labeled PD-L2.

DMSO >1%, strong acids or bases, ionic detergents, high salt.

See product datasheet for detailed protocol.

Stable at least 6 months from date of receipt, when stored as directed. Kit components require different storage conditions. Be sure to store each component at the proper temperature upon arrival.

Great for screening small molecular inhibitors for drug discovery and HTS applications.

1. Molnar, E., et al. Proc Natl Acad Sci USA. 2008; 105: 10483-10488.
2. Keir, M.E., et al. Annu. Rev. Immunol. 2008; 26: 677-704.

MATERIALS OR INSTRUMENTS REQUIRED BUT NOT SUPPLIED:
Fluorescent microplate reader capable of measuring Time Resolved Fluorescence Resonance Energy Transfer (TR-FRET)
Adjustable micropipettor and sterile tips

Avoid freeze/thaw cycles

Immunotherapy

Assay Kit