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The Monoclonal Anti-Flag Tag Antibody FA-Labeled is a universal tool for TR-FRET assays that can bind Flag-tagged proteins. This product uses specific anti-Flag Tag antibody labeled with fluorescent dyes and it can be used in combination with other Donors covalently conjugated with Eu³⁺ chelate. When the Donor and Acceptor come into close proximity (within a distance of less than 10 nm), a FRET reaction occurs: the 620 nm signal emitted by the Donor upon excitation by a specific light source is received by the Acceptor, which then emits a 665 nm signal.Product Specifications
SourceThis Monoclonal Anti-Flag Tag Antibody, Rabbit IgG is a rabbit monoclonal antibody recombinantly expressed from HEK293.SpecificityThis antibody specifically reacts with Flag tag proteins, and can recognizes C-terminal and N-terminal Flag tagged fusion proteins.FormulationLyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.Physical AppearancePowderStorage (unopened)-20°C to -70°CStorage (opened)-70°CUnit Size1000 tests & 5000 tests & 20000 testsTechnologyTR-FRETIntended UseFor binding the flag-tagged protein as Acceptor in TR-FRET AssayReconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
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Bioactivity-TR-FRET
Please refer to DS document for the assay protocol.
In this TR-FRET assay, Streptavidin Protein Europium chelate (Cat. No. FRT-TD09) is used as the Donor and Monoclonal Anti-Flag Tag Antibody FA-Labeled (Cat. No. FRT-TA06) is used as the Acceptor. Biotinylated Human CD40 Protein, Fc,Avitag (Cat. No. TN5-H82F9), at 12.5 ng/well, can bind to the Human CD40 Ligand, His,Flag Tag, premium grade (Cat. No. CDL-H52Db) with a linear detection range of 10-0.078 μg/mL (QC tested).
In this TR-FRET assay, Streptavidin Protein Europium chelate (for TR-FRET) (Cat. No. FRT-TD09) is used as the Donor and Monoclonal Anti-Flag Tag Antibody FA-Labeled (for TR-FRET) (Cat. No. FRT-TA06) is used as the Acceptor. Human CD3E&CD3D Heterodimer Protein (Cat. No. CDD-H52Wa), at 10 ng/well and Biotinylated Human Kallikrein 2 Protein, His,Avitag (Cat. No. KA2-H82E3), at 5 ng/well, can bind to the Pasritamig with a linear detection range of 4-0.016 μg/mL (Routinely tested).
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FAQ
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Can lyophilized proteins remain stable during room-temperature shipping or temporary room-temperature exposure?
In general, lyophilized proteins remain stable during room-temperature shipping or temporary exposure to room-temperature conditions.
Many ACROBiosystems recombinant proteins are supplied in lyophilized (freeze-dried) form. The lyophilization process effectively removes moisture from the product, helping reduce degradation-related reactions and improve protein stability during transportation and storage.
To evaluate the stability of lyophilized proteins under normal temperature conditions, ACROBiosystems conducted a stability study on 11 representative lyophilized protein products at 37°C. The study demonstrated that these proteins maintained good quality stability after storage at 37°C for approximately 20 days. Based on these validation results, temporary room-temperature exposure during shipping or handling is generally not expected to have a significant impact on product quality or downstream application performance.
To ensure optimal long-term stability, products should be stored according to the storage conditions specified in the product Certificate of Analysis (COA) upon receipt.
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