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Assay Type | Competition-TR-FRET |
Reactivity | Human |
Regulatory Status | RUO |
Assay Time | 1 h |
Sample volume | 10 μL |
The Human TNF-alpha / TNFR2 Inhibitor Screening Kit (TR-FRET) is based on a homogeneous (no wash) competition TR-FRET technology (Time-Resolved Fluorescence Resonance Energy Transfer) to screen for inhibitors of human TNF-alpha binding to TNFR2 within one hour. It can also be used as a universal detection tool to identify the ability of human TNF-alpha to bind to human TNFR2.
1. Unopened kit should be stored at 2℃-8℃ upon receiving.
2. Find the expiration date on the outside packaging and do not use reagents past their expiration date.
3. The opened kit should be stored per components table. The shelf life is 30 days from the date of opening.
ID | Components | Size |
FRTP028-C01 | Human TNF-alpha Protein Europium-chelate | 100 tests/500 tests |
FRTP028-C02 | FA Labeled Human TNFR2 Protein | 100 tests/500 tests |
FRTP028-C03 | Anti-TNF-alpha Neutralizing Antibody | 20 μg/100 tests 100 μg/500 tests |
DB-04 | TR-FRET Sample Dilution Buffer, pH7.4 | 50 mL/100 tests & 500 tests |
DB-05 | TR-FRET Detection Buffer, pH7.4 | 50 mL/100 tests & 500 tests |
This Human TNF-alpha / TNFR2 Inhibitor Screening Kit (TR-FRET) is based on TR-FRET technology (Time-Resolved Fluorescence Resonance Energy Transfer). This assay uses the mixture of biotinylated human TNF-alpha and Europium-chelate labeled streptavidin as the Donor and FA Labeled Human TNFR2 Protein as the Acceptor.
— When the sample does not contain the inhibitors that block the binding of human TNF-alpha to human TNFR2, the Donor and Acceptor are in close proximity because of the binding of human TNF-alpha and human TNFR2. Upon Donor excitation with light of a specific wavelength (337nm), in addition to Donor emission (620nm), non-radiative transfer of energy occurs between Donor and Acceptor, resulting in Acceptor emission (665nm).
— When the sample contains the inhibitors that block the binding of human TNF-alpha to human TNFR2, the components inhibit the binding between the Donor and Acceptor and thereby prevent FRET from occurring.
