"TR-FRET" Related Products

TR-FRET PPAR gamma Competitive Binding Assay Kit, rabbit

Cat.No.: Kit-0919
Description: The TR-FRET PPAR gamma Competitive Binding Assay provides a sensitive and robust method for high-throughput screening (HTS) of ligands for peroxisome proliferator-activated receptor-gamma (PPAR gamma). The kit uses a terbium-labeled anti-GST antibody, a fluorescent small-molecule pan-PPAR ligand (Pan-PPAR Green), and human PPAR gamma ligand-binding domain (LBD) that is tagged with glutathione S-transferase (GST) in a homogeneous mix-and-read assay format.
To assay:
When running the TR-FRET PPAR gamma Competitive Binding Assay, Pan-PPAR Green is added to ligand test compounds followed by addition of a mixture of the PPAR gamma-LBD and terbium anti-GST antibody. When the Pan-PPAR Green is bound to PPAR gamma, energy transfer from the terbium-labeled antibody to the tracer occurs, and a high TR-FRET ratio is observed. Competitive ligand binding to PPAR gamma is detected by a test compound’s ability to displace the tracer, which results in a loss of FRET between the antibody and the tracer. After an incubation period at room temperature, the 520 nm/495 nm TR-FRET ratio is calculated and can be used to determine the IC50 from a dose response curve of the compound. This type of binding assay is analogous to radioligand-based assays, except that it eliminates handling of radioactivity and enables a homogeneous, "addition-only" format.
Applications: Nuclear Receptor Assay
Storage: Tb-anti-GST Antibody (Rabbit): Store at -20 °C
PPAR gamma-LBD, GST: Store at -80 °C
Fluormone Pan-PPAR Green: Store at -20 °C
TR-FRET PPAR Assay Buffer: Store at 4 °C
1M DTT: Store at -20 °C or -80 °C
Size: 400 x 40 µL assays
Materials Required but Not Supplied: Microplate Reader
Detection method: Fluorescent
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