ThermoAntibody Labeling Kit The Thermo Scientific FITC peptide label is a critical tool for researchers in various life science disciplines, enabling the fluorescent tagging of peptides for a multitude of analytical and experimental applications. Understanding the nuances of this process, from the fundamental chemistry to practical protocols, is essential for achieving reliable and reproducible resultsThermo Scientific™ Pierce™ FITC Antibody Labeling Kit. This article delves into the specifics of FITC labeling, drawing upon expert knowledge and practical insights to guide researchersFITC labeling of human insulin and transport ....
Understanding FITC: A Versatile Fluorescent Dye
FITC (Fluorescein Isothiocyanate) is a widely utilized fluorescent dye known for its bright green emission and excitation properties. It is a derivative of fluorescein, with an excitation maximum typically around 498 nm and an emission maximum around 517 nm. While FITC exhibits a high rate of photobleaching, its ease of use and cost-effectiveness have made it a staple in many laboratories. Thermo Scientific offers high-performance derivatives of this dye, activated for straightforward and dependable labelingFITC labeling of human insulin and transport .... These reagents and kits are designed to simplify the process, ensuring that researchers can efficiently tag their target molecules.FITC labeling ·1. Fmoc group of the N-terminal amino acid must be removed. · 2. Prepare FITC reagent. · 3. Add mixture to the resin and incubate in the dark for 2 ...
The Chemistry Behind FITC Peptide Labeling
The primary mechanism for FITC labeling of peptides involves the reaction between the isothiocyanate group of FITC and the primary amine groups present in the peptide. These primary amines are often found at the N-terminus of a peptide or as the side chains of lysine residues.Antibody Labeling Kits for 1 mg FITC (Fluorescein) For successful labeling, particularly of the N-terminus, it is crucial that the Fmoc group of the N-terminal amino acid must be removed prior to the labeling reaction.ELISAs This deprotection step ensures that the N-terminal amine is available to react with the FITC reagent.Biopharma. ONESOURCE. Comprehensive services to enable, accelerate, and protectscientificand manufacturing workflows in pharma. The labeling reaction is typically carried out in hydrogen carbonate/carbonate buffers at a pH of 8Thermo Fisher, 53027, Pierce™FITCAntibodyLabelingKit. CATALOG NUMBER: 53027. Regular price.Fluorescein Isothiocyanate (FITC).99. /. Shipping calculated at checkout..5-9. At this pH, alpha amino groups are deprotonated, facilitating the reaction.
Thermo Scientific FITC Peptide Labeling Kits: Convenience and Efficacy
Thermo Scientific FITC labeling kits, such as the Pierce™ FITC Antibody Labeling Kit, are designed to provide a comprehensive solution for researchersFITC is a green fluorescein derivativewith excitation max. of 498 nm, emission max. of 517 nm and displays a high rate of photobleaching.. These kits often contain all the necessary components for protein labeling reactions, streamlining the experimental workflowMix-n-Stain™ FITC Antibody Labeling Kit. Some kits are specifically designed to label small proteins (17 kDa) with FITC, addressing a common challenge for researchers working with smaller biomolecules. The Pre-measured active labeling reagent within these kits further simplifies the process, reducing the need for precise reagent preparationMix-n-Stain™ FITC Antibody Labeling Kits allow you tolabel ≤5 ug up to 100 ug of your antibody with fluorescein (FITC) in just 15 minutes, with minimal hands- ....
For those specifically interested in peptide labeling, specialized protocols and reagents are available. While many resources focus on antibody labeling, the principles can be adapted. For instance, one approach for FITC labeling of proteins using tandem methods or specific protocols for FITC labeling of human insulin and transport demonstrates the versatility of FITC. The goal is often to create FITC-labelled protein substrates/peptides that can serve as specific probes in various assays.
Practical Considerations for Successful FITC Labeling
* Concentration: To achieve the best labeling efficiency, it is recommended that the final protein concentration range is 2-10 mg\/mL.ELISAs This concentration range balances the need for sufficient target molecules with the potential for aggregation or solubility issuesMix-n-Stain™ FITC Antibody Labeling Kit.
* Buffer Conditions: As mentioned, alkaline buffers (pH 8.5-9) are generally optimal for FITC labeling due to the deprotonation of amine groups2013年4月29日—I am trying tolabel small proteins (17 kDa) with FITC, but all the protocols I have found are mainly for IgG labeling..
* Reaction Time and Incubation: The incubation time for labeling can vary, but many kits are designed for rapid labeling, with some allowing labeling in just 15 minutes. It is crucial to incubate in the dark, as FITC can be light-sensitive作者:D Shah·2019·被引用次数:54—Fluorescein isothiocyanate (FITC), one of such probes, is widely used forlabelingproteins andpeptidesdue to its high detection sensitivity and low molecular ....
* Purification: Following the labeling reaction, it is essential to remove any excess, unreacted FITC. Methods such as dialysis against a suitable buffer (e.gFITC labeling - Peptideweb.com., water) can effectively remove unreacted FITC and purify the labeled product, preventing background fluorescence. While FITC-labeled peptide and non-labeled peptide should be very different on HPLC, making separation possible, other purification methods may also be employed depending on the specific application.
* Scaling: Some Thermo Scientific FITC labeling kits are completely scalable, allowing for conjugation of varying amounts of antibody or protein, from \u22645 ug up to 100 ug of your antibody with fluorescein (FITC). This scalability is a significant advantage for researchers with diverse experimental needs.FITC
Applications of FITC-Labeled Peptides
FITC-labeled protein substrates/peptides are invaluable tools with a wide array of applications:
* Fluorescence Imaging: Tagging molecules allows for visualization within cells or tissuesFITC is a green fluorescein derivativewith excitation max. of 498 nm, emission max. of 517 nm and displays a high rate of photobleaching..
* Flow Cytometry: FITC is commonly used for cell surface marker detection and intracellular staining.
* Immunocytochemistry: Visualizing the localization of specific proteins or peptides within cells.The best protocol for FITC labeling of proteins
* Enzyme Kinetics: Using labeled substrates to study enzyme activity.
* Diagnostic Assays: FITC conjugates are used in various diagnostic tools, including ELISAsPierce™FITCAntibodyLabelingKit. TheThermo Scientific FITCAntibodyLabelingKit is a multi-component kit containing a high-performance derivative of ....
* Biotechnology Research: For tracking and quantifying biological processes.
Thermo Fisher Scientific is a leading provider of reagents and kits for scientific research, and their offerings in FITC labeling continue to be a cornerstone for many laboratories. By understanding the principles and employing the right tools, researchers can effectively utilize the Thermo Scientific FITC peptide label to advance their investigations{plog:serpgr}
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