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CBP bromodomain TR-FRET Assay Kit
CBP bromodomain TR-FRET Assay Kit
Artikelnummer
CAY600850-1920
Verpackungseinheit
1920 wells
Hersteller
Cayman Chemical
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Shelf life (days): 365
Notes: Cayman’s CBP bromodomain TR-FRET Assay Kit is a homogeneous, time-resolved Förster resonance energy transfer (TR-FRET) assay method amenable to rapid characterization of inhibitors of the bromodomain-acetylated peptide interaction in a high-throughput format. The donor fluorophore in this assay consists of CBP bromodomain (BRD; human; amino acids 1,081-1,197) directly labeled with a europium (Eu3+) chelate (BRD-Eu3+). A biotinylated peptide containing acetylated lysines serves as the ligand for the CBP bromodomain. Allophycocyanin (APC)-labeled avidin binds with high affinity to the peptide substrate via the biotin moiety and serves as the acceptor fluorophore in the assay. Inhibition of the BRD-peptide interaction displaces BRD-Eu3+ from the APC-labeled avidin resulting in a loss of TR-FRET signal. The CBP bromodomain TR-FRET Assay Kit is robust (Z´ = >0.6) and suitable for high-throughput screening in the provided 384-well plate or can be scaled to higher density plate formats (e.g., 1,536-well plate) if desired. The assay is stable at room temperature for at least four hours and in the presence of less than 2% DMSO.
Notes: Cayman’s CBP bromodomain TR-FRET Assay Kit is a homogeneous, time-resolved Förster resonance energy transfer (TR-FRET) assay method amenable to rapid characterization of inhibitors of the bromodomain-acetylated peptide interaction in a high-throughput format. The donor fluorophore in this assay consists of CBP bromodomain (BRD; human; amino acids 1,081-1,197) directly labeled with a europium (Eu3+) chelate (BRD-Eu3+). A biotinylated peptide containing acetylated lysines serves as the ligand for the CBP bromodomain. Allophycocyanin (APC)-labeled avidin binds with high affinity to the peptide substrate via the biotin moiety and serves as the acceptor fluorophore in the assay. Inhibition of the BRD-peptide interaction displaces BRD-Eu3+ from the APC-labeled avidin resulting in a loss of TR-FRET signal. The CBP bromodomain TR-FRET Assay Kit is robust (Z´ = >0.6) and suitable for high-throughput screening in the provided 384-well plate or can be scaled to higher density plate formats (e.g., 1,536-well plate) if desired. The assay is stable at room temperature for at least four hours and in the presence of less than 2% DMSO.
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Gernot Ensinger, M.Sc.
Laurent Haze
