cy5 peptide Cy5.5-GX1 is a promising molecular probe - cyclic-cit-peptide Cy5® is fluorescent in the red region Cy5 Peptide: Fluorescent Labeling for Enhanced Biological Applications

cyclic-citrullin-peptide-ab-high The dominant search intent for "cy5 peptide" revolves around understanding and utilizing Cy5-labeled peptides in scientific research and applicationsCy5 - 楚肽生物科技. This includes their properties, labeling methods, and specific uses in areas like diagnostics, imaging, and biological studies.This Jena Bioscience Protein Labeling Kit is designed forlabeling the lysines of a POI with a small fluorophoreresulting in a fluorescent protein-fluorophore ...

Tier 1:

* search_keyword: cy5 peptide

* High-relevance phrases: Cy5 fluorescently-labelled peptide, labeling of amino-groups in peptides, Cy5.5-labeled, fluorescently labeled

* Core entities: Cy5, peptide

Tier 2:

* Related entities/attributes: Cyanine dyes, fluorescent labeling, far-red fluorescent dyes, red region fluorescence, water-soluble derivatives, stability (pH), click chemistry, NHS ester, Sulfo-Cy5, Cy5.5

* Applications/Subtopics: Antimicrobial peptides, amyloid beta peptide, molecular probe, imaging, diagnostics, antibodies, proteins, FRET peptides, flow cytometry, Western blot, ELISA, Immunohistochemistry

* Variations: Cy5.5, Sulfo-Cy5, Cy5-NHS ester, Cy5-SE

Tier 3:

* Specific catalog numbers, overly commercial product names without context, repetitive mentions of "labeled peptide" without adding new information.

A cy5 peptide refers to a peptide molecule that has been chemically tagged with a Cy5 (Cyanine 5) fluorescent dye.Cy5-NHS ester is a reactive dye containinig NHS ester group, which enables labeling of amino-bearing biomolecules. This reagent can be used for thelabeling of amino-groups in peptides, proteins, and oligonucleotides. Please contact us for GMP-grade inquiries. This labeling process transforms the peptide into a fluorescently labeled peptide, enabling researchers to track, visualize, and quantify its presence and behavior in biological systems with high sensitivity.Cyanine - Wikipedia Cy5 is a popular choice due to its emission in the far-red spectrum, which minimizes background fluorescence and allows for deeper tissue penetration in imaging applicationsCY5标记肽. The primary allure of a cy5 peptide lies in its utility as a molecular probe, offering a powerful tool for labeling of amino-groups in peptides and other biomolecules.

The Cy5 fluorophore, belonging to the cyanine dye family, is known for its distinct spectral properties. Specifically, Cy5 is fluorescent in the red region with excitation typically around 650 nm and emission around 670 nm. This spectral range is particularly advantageous for biological applications, as it falls within the near-infrared window, reducing autofluorescence from biological tissues. Furthermore, derivatives like Sulfo-Cy5 dye are designed to be water-soluble, enhancing their compatibility with biological buffers and improving their performance in aqueous environments. The stability of Cy5 is also a key factor; it remains stable under most conditions, though it is advised to avoid highly basic conditions (pH > 8).

Methods and Applications of Cy5-Labeled Peptides

The conjugation of Cy5 to peptides is typically achieved through various chemical reactions, with the labeling of amino-groups in peptides being a common strategyThe cerebral and vascular plaques associated with Alzheimer's disease are mainly composed of Amyloid betapeptides. beta Amyloid is derived from cleavage of the .... Reactive forms of Cy5, such as Cy5-NHS ester (N-hydroxysuccinimide ester), readily react with primary amines found in lysine residues or N-termini of peptides. This allows for the creation of stable amide bonds between the dye and the peptideNatriuretic Peptide Receptor C Antibody (1060830) [PE/ .... For peptides with specific functional groups, other activated forms like Cy5-SE (succinimidyl ester) or methods involving click chemistry, such as with Cy5-YNE (containing an alkyne group), can be employed to attach the dye to substrates with azide groups.

Cy5-labeled peptides find extensive use across various scientific disciplines:

* Biological Imaging and Tracking: Peptides labeled with Cy5 or its variants like Cy5.CCL26 SignalpeptideRabbit Polyclonal Antibody (Cy5) is aCy5conjugated antibody targeting CCL26. This antibody is suitable for FC, IF.5-labeled probes are invaluable for in vivo and in vitro imaging.A Cy5.5-labeled phage-displayed peptide probe for near- ... For instance, Cy5.5-GX1 has been explored as a molecular probe for optical imaging of tumor vasculature, while Cy5.5-labeled dimeric NGR peptides serve as promising probes for near-infrared imaging.

* Diagnostics: The high sensitivity of Cy5 fluorescence allows for the development of diagnostic assaysLightning-Link (R) Rapid Cy5 Antibody Labeling Kit. Antimicrobial peptides labeled with Cy5 have demonstrated enhanced detection capabilities against various pathogens, showing highly active against Gram-positive and Gram-negative bacteria as well as fungi.

* Biochemical Assays: Cy5-labeled peptides are used in techniques such as FRET (Förster Resonance Energy Transfer) studies, where they can act as donor or acceptor fluorophores.Mechanism and uses of a membrane peptide that targets ... For example, FMOC-Lys(Cy5)-OH is a building block for in-sequence lysine labeling, crucial for FRET peptide synthesis.

* Cellular Studies: Researchers use these labeled peptides to study peptide-receptor interactions, cellular uptake mechanisms, and intracellular trafficking. Examples include Cy5-Amyloid β Peptide for studying Alzheimer's disease pathology or Melittin [Cy5] to investigate its membrane-disrupting properties.

Considerations for Using Cy5 Peptides

When working with cy5 peptides, several factors warrant attention.FGL Peptide - Cy5 Labeled - PHOENIX BIOTECH The choice of labeling chemistry is critical to ensure efficient conjugation and preserve the peptide's biological activitySulfo-Cy5 Acid. For instance, using Cy5-NHS ester is suitable for labeling amino groups, but the reaction conditions must be optimized. Researchers also need to consider the potential impact of the dye conjugation on the peptide's function or conformation.

The spectral properties of Cy5 and its derivatives are well-characterized, with Cy5.5 offering fluorescence in a slightly longer wavelength range, often preferred for enhanced tissue penetrationCY5 | Dyes Chemical | CAS 146368-11-8 | Selleck. Kits are available for conjugating Cy5 and Cy5.5 to antibodies, proteins, and peptides, simplifying the labeling process. For example, Lightning-Link® kits allow for rapid and direct labeling of biomolecules, including peptides, in a matter of seconds.

In summary, cy5 peptides are essential tools in modern biological research, providing a means to visualize and study peptides with unprecedented detail. Their application spans from fundamental research into disease mechanisms to the development of advanced diagnostic and imaging agents, underscoring the significance of fluorescently labeled peptides in advancing scientific understanding.This Jena Bioscience Protein Labeling Kit is designed forlabeling the lysines of a POI with a small fluorophoreresulting in a fluorescent protein-fluorophore ...