Refine by
Protein Labeling Articles & Analysis
85 articles found
Bertin Bioreagent’s Myelotracker uses a peptide-based approach that targets lactoferrin, a neutrophil-associated protein, to achieve precise and selective labeling while preserving the cells’ physiological state.Evidence from the Application Note demonstrates efficient labeling of human neutrophils under native conditions and in the presence of ...
RNA-protein interaction studies: Biotin-labeled RNA is employed in RNA immunoprecipitation (RIP) and cross-linking immunoprecipitation (CLIP) procedures to identify and analyze RNA-protein complexes, clarifying the functions of certain proteins in mRNA splicing, translation, and degradation. ...
Their unique structure allows them to access challenging targets that conventional antibodies cannot, including hidden epitopes and conformational structures on proteins. Advantages of Single-Domain Antibodies Size and Specificity: Their small size enables them to penetrate tissues more effectively and reach targets that larger antibodies cannot. ...
Multicolor staining systems utilize fluorescent dyes as background dyes to identify various structures inside cells. Protein Labeling Dyes Protein labeling and localization studies depend heavily on fluorescent dyes. ...
By enabling precise, label-free detection of biomolecular interactions in real time, SPR has become a cornerstone in protein analysis, transforming research and development across numerous industries. ...
What is Quantum Dot Labeling? Quantum dots (QDs) are tiny, colloidal semiconductor nanocrystals composed of 100-100,000 atoms. ...
They serve as a kind of "chemical zip code" that allows for the specific modification or labeling of biomolecules in complex milieus. How Do Bioorthogonal Handles Work? ...
Label-free quantification (LFQ) is an innovative approach in proteomics that allows researchers to analyze protein abundance without the need for isotopic labeling. ...
Labeled quantification and label-free quantification are two major quantitative strategies in proteomics for comparing protein abundance under different samples or treatment conditions.Labeled QuantificationIn the sample preparation stage, a certain labeling technique is used to chemically label ...
Differentially expressed proteins refer to proteins that show significant changes in their expression levels in different biological samples or under different treatment conditions. ...
This method determines the amino acid sequence of a protein or polypeptide by chemically degrading the sequence one amino acid at a time. The process is roughly as follows.Labeling N-Terminal Amino AcidsFirst, a specific chemical reagent (usually Edman's reagent, phenylisothiocyanate) reacts with the N-terminal amino acid of the polypeptide or protein. This ...
Chemical LabelingBoth TMT and iTRAQ technologies use special chemical reagents to label proteins or peptides in samples. These labels contain isotopes of different masses, allowing peptides from different samples to be distinguished during mass spectrometry analysis.2. ...
Quantitative proteomics is a critical method in biological research, used to measure the relative or absolute quantity of proteins in different biological samples. This experiment requires strict adherence to a series of precautions to ensure the accuracy and repeatability of the data.Sample HandlingSample collection, storage, and processing must be standardized to avoid ...
iTRAQ (Isobaric Tags for Relative and Absolute Quantitation) and TMT (Tandem Mass Tag) are two commonly used mass spectrometry labeling techniques for protein quantification analysis in proteomics research. These techniques quantify protein expression levels in different samples by using chemical labels and are particularly ...
In proteomics research, "labelled" and "label-free" are two main methods.Labelled ProteomicsIn this method, proteins or their fragments are chemically labelled, usually for quantification. For instance, through mass spectrometry, the relative abundance of proteins in different samples can be compared. Common ...
The term "label-free proteome" generally refers to a group of proteins in proteomic research that do not rely on any form of chemical or isotopic labeling for protein quantitative analysis. ...
Fluorescent protein tagging utilizes fluorescent proteins (such as Green Fluorescent Protein, GFP) to label and track specific proteins or other biomolecules in cells. With this method, when the target protein is expressed in the cell, it carries the fluorescent protein, giving ...
Hydrogen Deuterium Exchange Mass Spectrometry (HDX-MS) is an advanced technology that combines Hydrogen Deuterium Exchange (HDX) and Mass Spectrometry (MS) to study the dynamic structure and interactions of proteins and protein complexes. It provides information on the secondary and tertiary structure of proteins, as well as the details of ...
The target protein needs to be isolated and purified, which is not suitable for large-scale protein quantification.(2) SILAC Labeling: After the appearance of SILAC technology, it quickly replaced 15N labeling. This technique uses culture media containing light and heavy isotope-labeled amino acids to ...
Spatial proteomics is a discipline that studies the three-dimensional spatial distribution of proteins within cells and their interactions with other molecules. Different from traditional proteomics which mainly focuses on protein sequences, expression levels, and interactions, spatial proteomics pays more attention to the spatial location and dynamic changes of ...