"TR-FRET" Related Products

TR-FRET VDR Coactivator Assay Kit, goat

Cat.No.: Kit-0959
Description: The TR-FRET Vitamin D Receptor (VDR) Coactivator Assay Kit provides a sensitive and robust method for high-throughput screening of potential VDR ligands as agonists of coactivator recruitment. The kit uses a terbium (Tb)-labeled anti-GST antibody, a fluorescein-labeled coactivator peptide, and a VDR ligand-binding domain (VDR-LBD) that is tagged with glutathione-S-transferase (GST), in a homogenous mix-and-read assay format.
The assay
To run the TR-FRET VDR Coactivator Assay, VDR-LBD is added to ligand test compounds, followed by addition of a mixture of the fluorescein-coactivator peptide and Tb-anti-GST antibody. After room temperature incubation, the TR-FRET 520: 495 emission ratio is calculated and used to determine the EC50 from a dose response curve of the compound. Based upon the biology of the VDRcoactivator peptide interaction, this ligand EC50 is a composite value representing the amount of ligand required to bind to receptor, effect a conformational change, and recruit coactivator peptide.
Applications: Co-Factor Interaction Assay
Storage: Store in ultra-cold freezer (-68 to -85°C).
Shipping: Dry Ice
Size: 800 x 20 µL assays
Kit Components: The TR-FRET VDR Coactivator Assay Kit contains the VDR-LBD (GST) protein, fluorescein-labeled TRAP220/DRIP-2 coactivator peptide, Tb-anti-GST antibody, and buffers. Store components as indicated in the assay protocol (-80°C, -20°C, or +4°C).
Materials Required but Not Supplied: Microplate Reader
Detection method: Fluorescent
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Optional requirements on this protein    +Expand
C-fusion    N-fusion   Non-tagged
His    GST   Fc   Others
<1.0 eu/μg    <0.1 eu/μg   <0.01 eu/μg   Not required
Monomer Isolation    Dimer Isolation    Not required
>80% by SDS-PAGE    >90% by SDS-PAGE   >95% by SDS-PAGE   Others

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