In the realm of biochemical research and protein expression analysis, the Pierce 3x Flag peptide has become an indispensable tool for scientists focusing on protein purification and detection. As someone who frequently works with recombinant proteins, I have found that selecting the right reagents is critical for ensuring the integrity of the fusion proteins being studied.
What is the Pierce 3x Flag Peptide?
The 3X FLAG peptide is a synthetic peptide of 23 amino acid residues that plays a vital TheFlag-tag is an artificial tag and, based on thepeptidesequence, is also called DYKDDDDK-tag.Flag-tag is used to tag proteins for multiple capture and Read more role in affinity chromatography. Specifically, it is designed to competitively elute tagged proteins from affinity resins. The structure is based on the classic Asp-Tyr-Lys-Xaa-Xaa-Asp motif, which is repeated three times. This specific configuration, often referred to as the 3x DYKDDDDK peptide, provides a significantly higher binding affinity compared to the standard single FLAG tag.
When working with this reagent, I often reference the technical specifications provided by manufacturers. The molecule has a molecular weight of approximately 2,861.9 Daltons. Because it is a high-purity, highly soluble epitope tag peptide, it integrates seamlessly into various buffer systems, most notably when you prepare Pierce 3x DYKDDDDK peptide at 1.5 mg/mL in PBS.
Technical Specifications and Performance
From my experience in the lab, the efficiency of this 3x flag reagent is unmatched for gentle protein elution. Because it functions via competitive binding, it allows for t 3X (DYKDDDDK) Peptide he recovery of delicate protein complexes without subjecting them to harsh pH shifts or denaturing conditions.
* Composition: A synthetic peptide of 23 amino acid residues.
* Sensitivity: It can detect fusion proteins up to 10 fmol, making it suitable for low-abundance protein analysis.
* Workflow Integration: It is specifically o FLAG peptide - MedchemExpress.com ptimized for use with Pierce Anti-DYKDDDDK affinity resins.
The 3X FLAG peptide is essentially a peptide sequence that is formed by the com 10 Oct 2017—1.Prepare Pierce 3x DYKDDDDK peptide at 1.5 mg/mL in PBS. 2. Plug the column tip and add 200µL of 1.5 mg/mL Pierce Read more bin The Triple FLAG® Peptide is asynthetic peptide of 23 amino acid residues(molecular weight of 2861.9 daltons). The Asp-Tyr-Lys-Xaa-Xaa-Asp motif is repeated Read more ation of 23 amino acids, which creates a hydrophilic profile. This hydrophilicity is a major advantage, as it prevents the peptide from aggregating during the elution process, ensuring a clean output for downstream analysis.
Best Practices for Laboratory Use
When utilizing 3x FLAG or 3x DYKDDDDK Tag Peptide reagents, consistency is key. I have observed that maintaining an optimal concentration—typically 1.5 mg/mL—ensures that the 3X FLAG peptides effectively displace the target proteins from the matrix.
It is important to note that these peptides are specialized laboratory reagents. They are strictly for research use only. In m 3x FLAG peptide (5 mg) y own protocols, I ensure that the elution buffer is calibrated to the correct ionic strength, as this influences the binding kinetics between the 3xFlag tag and the antibody-coated beads. Whether you are performing immunoprecipitation or large-scale protein purification, the reliability of a high-purity 3X FLAG peptide cannot be overstated.
Summary of Key Features
* Molecular Structure: Contains the repeated Asp-Tyr-Lys-Xaa-Xaa-Asp motif.
* Functional Use: Competitive elution of 3xFLAG tagged proteins.
* Reliability: Highly characterized, ensuring reproducible results across different biochemical assays.
By focusing on high-quality 3X DYKDDDDK Peptide reagents, researchers can streamline their protein purification workflows, minimizing potential contamination High-purity 3X FLAG Peptidefor efficient protein tagging and detection in biochemical research, ensuring reliable performance and quality from APExBIO. and maximizing yield. Whether you are investigating protein-protein interactions or performing structural studies, the integration of these synthetic markers remains a cornerstone of modern molecular biology.