规格
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Assay Entry:
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Biochemical coregulator interaction |
Product Line:
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LanthaScreen® |
Readout:
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End Point |
Shipping Condition:
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Dry Ice |
Target Entry:
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CAR, NR1I3 |
Technique:
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TR-FRET |
Validated Application:
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Co-Factor Interaction Assay |
Label or Dye:
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Tb (Terbium) |
Detection Method:
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Fluorescent |
For Use With (Equipment):
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Microplate Reader |
Format:
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384-well plate |
储存
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The LanthaScreen® TR-FRET CAR Coactivator Assay Kit contains CAR-LBD (GST) protein, fluorescently labeled PGC1a coactivator peptide, terbium-labeled anti-GST antibody, and buffers. Store components as indicated in the assay protocol (-80°C, -20°C, or +4°C). |
This kit contains Goat Tb-Anti-GST antibody; other kit components are the same as kit A15141:
The LanthaScreen® TR-FRET Constitutive Androstane Receptor (CAR) Coactivator Assay provides a sensitive and robust method for highthroughput screening (HTS) of potential CAR ligands as agonists of ligand-dependent coactivator recruitment or inverse agonists of liganddependent coactivator displacement. The kit uses a terbium-labeled anti-GST antibody, a fluorescein-labeled coactivator peptide, and a CAR ligand-binding domain (CAR-LBD) that is tagged with glutathione-S-transferase (GST) in a homogeneous mix-and-read assay format.
To assay:
When running the LanthaScreen® TR-FRET CAR Coactivator Assay, CAR-LBD is added to ligand test compounds followed by addition of a mixture of the fluorescein-coactivator peptide and terbium anti-GST antibody. After an incubation period at room temperature, the 520 nm/ 495 nm TR-FRET ratio is calculated and can be used to determine the EC50 from a dose response curve of the compound. Based on the biology of the CAR-coactivator peptide interaction, this ligand’s EC50 is a composite value representing the amount of ligand required to bind to receptor, effect a conformational change, and either recruit or displace coactivator peptide (Figures 1 and 2).