amino-acids-linked-by-peptide-bonds The Pierce High pH Reversed-Phase Peptide Fractionation Kit is a valuable tool for researchers aiming to enhance protein identification through mass spectrometryPierce™ High pH Reversed-Phase Peptide Fractionation Kit. This kit leverages high pH reversed-phase chromatography to separate peptides based on their hydrophobicity, a crucial step in complex proteomic analyses. By effectively fractionating peptide samples, it allows for a more comprehensive understanding of protein expression and modifications within a given biological sample.High pH Reversed-Phase Peptide Fractionation in a ... The kit's design, utilizing spin columns with pH-resistant reversed-phase resin, simplifies the fractionation process, making it accessible for various laboratory workflowsThe Pierce High pH Reversed-Phase Peptide Fractionation Kitutilizes high pH reversed-phase chromatographyto separate peptides by hydrophobicity..
High pH reversed-phase peptide fractionation is a technique that separates peptides based on their hydrophobicity at an alkaline pH. This method is particularly effective for complex peptide mixtures, such as those generated from digested protein samples in proteomic studies. The Pierce High pH Reversed-Phase Peptide Fractionation Kit employs this principle, using a proprietary reversed-phase resin within convenient spin columnsHigh-pH reversed-phase chromatographyis a robust method of peptide fractionation that separates peptides by hydrophobicity and provides excellent .... The kit typically includes a high pH solution, often containing 0.1% triethylamine, and twelve spin columns. This setup is designed for offline fractionation prior to mass spectrometry analysis, aiming to improve protein identification rates by reducing sample complexity for downstream analysis.
The effectiveness of this kit is highlighted in its ability to increase protein identificationThekitincludes ahigh-pHsolution (0.1% triethylamine) and 12 spin columns containingpH-resistant,reversed-phaseresin. Eachreversed-phase fractionation.... By separating a complex peptide mixture into smaller, more manageable fractions, the sensitivity of mass spectrometry analysis is enhanced. This means that less abundant peptides, which might otherwise be masked in a complex mixture, can be detected and identified. The use of a high pH buffer (0.1% triethylamine) is critical as it helps to maintain the peptide ionization state and improve the chromatographic separation.
The Pierce High pH Reversed-Phase Peptide Fractionation Kit is designed for ease of use and efficiency. The core components include:
* Spin Columns: These contain a pH-resistant, reversed-phase resin. The spin column format simplifies the fractionation process, allowing for gravity flow or centrifugation-based separation.
* High pH Solution: This buffer, typically 0.1% triethylamine in water, is used to elute peptides from the reversed-phase resin. The high pH is crucial for the separation mechanism.
The kit is often used to fractionate labeled peptides, such as those labeled with TMT (Tandem Mass Tag) reagents, which are common in quantitative proteomics. Researchers have reported using the Pierce High pH Reversed-Phase Peptide Fractionation Kit to divide peptide digests into multiple fractions, ranging from eight to twelve, depending on the specific protocol and sample complexityOptimization of Sample Preparation and Off-Line High pH .... This offline fractionation is performed before liquid chromatography-mass spectrometry (LC-MS) analysis, thereby increasing the depth and breadth of proteomic insights.Ideal peptide fractionation (2D) compatible for iTRAQ ...
The primary benefit of using the Pierce High pH Reversed-Phase Peptide Fractionation Kit is the significant improvement in protein identification.High pH reversed-phase fractionationprofile of 100 μg HeLa cell lysate trypsic digest labeled with TMT reagent. By reducing the complexity of the peptide mixture, the dynamic range of the mass spectrometer is better utilized, leading to the detection of more peptides and, consequently, more proteinsA micro-flow, high-pH, reversed-phase peptide fractionation .... This is particularly important in studies involving low-abundance proteins, post-translational modifications, or when analyzing challenging sample types like biological fluids or tissue extracts.
Applications include:
* Enhanced Protein Identification: As mentioned, this is the core advantage.... proteins. Digested pool peptides were then fractionated to 10 fraction usingHigh pH Reversed-Phase Peptide Fractionation Kit（Thermo Scientific™ Pierce ...
* Comprehensive Proteomic Analysis: Enables a more complete picture of the proteome作者：X Liu·2023·被引用次数：11—The pooled TMT-labeled peptide sample was then fractionated using thePierce High pH Reversed-Phase Peptide Fractionation Kit(Thermo Fisher ....
* Quantitative Proteomics: Facilitates more accurate quantification of peptides and proteins, especially when using labeling strategies like TMT.A micro-flow, high-pH, reversed-phase peptide fractionation ...
* Discovery of Low-Abundance Proteins: Crucial for identifying biomarkers or studying signaling pathways involving less abundant proteinsEl kit de fraccionamiento de péptidos de fase inversa y pH alto Thermo Scientific™ Pierce™aumenta la identificación de proteínasa partir del análisis de LC-MS ....
The kit's design also contributes to user-friendliness and reproducibility, making it a reliable choice for routine proteomic workflows. Its compatibility with various sample types and labeling chemistries further broadens its utility in diverse research areas, from basic biological research to clinical diagnostics.HpH RP Peptide Fractionation Spin Column The ability to fractionate small amounts of peptide offline prior to mass spectrometry analysis makes it suitable for studies with limited sample availabilityHigh pH Reversed-Phase Peptide Fractionation in a ....
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