CoraFluor™ 1, amine reactive
Biological Activity
CoraFluor™ 1, amine reactive is a terbium-based time-resolved Förster resonance energy transfer (TR-FRET) donor for TR-FRET assay development, such as target engagement and ternary complex assays. This product is designed with a PFP ester for reactivity with primary amines, making it suitable for labeling biomolecules, including antibodies, nanobodies, proteins and peptides. It is exceptionally bright, providing unmatched assay sensitivity and stability in biological media over other commercially available TR-FRET donors. CoraFluor™ 1, amine reactive is compatible with common acceptor dyes such as FAM, TMR and Cyanine 5, SE (Cat. No. 5436), enabling seamless assay integration in high throughput screening applications.CoraFluor™ 2, amine reactive also available.
Please refer to the protocol for further information on conjugation.
CoraFluor™ is a trademark of Bio-Techne Corp.
Scientific Data
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CoraFluor™ 1 stability profile. Stability profiling of CoraFluor™ 1 and a commercially available TR-FRET donor (5 nM) after 7 days of exposure to 50 mM PBS, acetic acid (pH 3), sodium acetate (pH 5), MES (pH 6) or Tris buffer (pH 7.5) supplemented with various additives (DTPA, Ca2+, Mg2+, DTT, TCEP = 1 mM; Mn2+, Cu2+ = 0.5 mM).
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CoraFluor™ TR-FRET target engagement assay. High throughput TR-FRET target engagement assay profiling BRD4 inhibitors and Degraders on endogenous BRD4 using a single detection mix consisting of a primary BRD4 antibody, a CoraFluor™ 1 labeled VHH secondary antibody, and a fluorescent JQ1-based tracer (JQ1-FITC Catalog #7722).
Optical Data for CoraFluor™ 1, amine reactive
| λabs | 338 nm |
|---|---|
| Extinction Coefficient (ε) | 23100 M-1cm-1 |
| Quantum Yield (φ) | 0.58 |
| Closest Laser line | 337 nm |
| Reactivity | Primary amines |
| Application | Time-resolved fluorescence energy transfer (TR-FRET) |
Plan Your Experiments
Use our spectra viewer to interactively plan your experiments, assessing multiplexing options. View the excitation and emission spectra for our fluorescent dye range and other commonly used dyes.
Spectral Viewer
Technical Data
The technical data provided above is for guidance only.
For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Additional Information
Product Datasheets
Reconstitution Calculator
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Citation for CoraFluor™ 1, amine reactive
The citations listed below are publications that use Tocris products. Selected citations for CoraFluor™ 1, amine reactive include:
1 Citation: Showing 1 - 1
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Protocol for the comprehensive biochemical and cellular profiling of small-molecule degraders using CoraFluor TR-FRET technology.
Authors: Payne Et al.
STAR Protoc. 2024;5:103129
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