Resources
Proteomics Databases
Metabolomics Databases
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• Protein Structure Identification: Methods and Challenges
Protein structure identification refers to the determination of proteins' three-dimensional structures through experimental techniques to gain insights into their functional properties and biological roles. Proteins are pivotal in biological processes, acting as catalysts in enzymatic reactions or as receptors in signal transduction. Thus, understanding protein structures is vital for comprehending their functions. Structural identification not only elucidates how proteins interact with other molecule......
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• Monoclonal Antibody Analysis
Monoclonal antibody analysis comprehensively evaluates the structure, function, and purity of monoclonal antibodies produced by a single B cell clone, known for their high specificity and consistency. This analysis plays a crucial role in ensuring antibody quality and functionality, supporting researchers and pharmaceutical companies in developing safe and effective antibody therapies. As a critical step in biomedicine's drug development process, the safety and efficacy of therapeutics heavily depend ......
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HPLC peptide analysis is an effective technique for the separation and analysis of peptides within protein samples. This method uses a high-pressure liquid mobile phase passing through a column with a stationary phase to achieve component separation. It provides insights into protein molecular weights, amino acid sequences, and modification statuses, making it invaluable in proteomics. HPLC peptide analysis finds extensive use in biomedical research, drug development, and food safety testing. In biome......
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LC-MS peptide analysis is a pivotal analytical technique for investigating protein structures and functions. This method integrates the separation capability of liquid chromatography with the detection power of mass spectrometry, enabling precise identification and quantification of peptides in complex biological samples. By separating the sample's different compounds, liquid chromatography facilitates clear identification of each peptide's characteristics during subsequent mass spectrometry analysis.......
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Antibody protein sequencing is a vital technique for determining the amino acid sequences of antibody molecules. As key components of the immune system, antibodies have structures and functions directly linked to their ability to identify and neutralize foreign pathogens. The diversity and specificity of antibodies are largely dictated by their amino acid sequences. Thus, obtaining detailed sequence information is crucial for advances in biomedical research, drug development, and immunological studies......
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• C-Terminal Sequencing of Proteins
C-terminal sequencing of proteins involves identifying and analyzing the amino acid sequence at the protein's carboxyl-terminus using various chemical or enzymatic methods. In the field of proteomics, determining the C-terminal sequence is crucial as it influences the protein's function, stability, cellular localization, and interactions. Alterations in the C-terminal sequence can lead to various diseases, making it vital for diagnostic and therapeutic purposes. Moreover, C-terminal sequencing of prot......
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• Mass Spectrometry of Proteins and Peptides
Mass spectrometry of proteins and peptides is a powerful technique for identifying and quantifying these biomolecules in complex biological samples. This method is central to proteomics research, offering insights into the complexity and functions of proteins within biological systems. By measuring the mass-to-charge ratio (m/z) of ionized molecules or their fragments, mass spectrometry of proteins and peptides enables high-precision and high-sensitivity structural analysis. Applications of this techn......
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• Mass Spectrometry-Based Chemical Proteomics
Mass spectrometry-based chemical proteomics merges chemical probes, mass spectrometry, and bioinformatics to elucidate the functions, structures, and interactions of proteins within cellular environments. This sophisticated technique offers efficient and precise identification of proteins along with their post-translational modifications. Its applications extend to uncovering protein mechanisms, identifying drug targets, and deciphering signal transduction pathways in intricate biological systems. Suc......
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• Mass Spectrometry-Based Label-Free Quantitative Proteomics
Mass spectrometry-based label-free quantitative proteomics serves as an analytical technique for assessing the absolute and relative abundance of proteins within biological samples. Unlike traditional isotopic or chemical labeling methods, this label-free approach directly quantifies proteins by measuring the signal intensities from mass spectrometry. The foremost advantage of this methodology lies in its ability to bypass complex sample preparation, enabling more rapid and cost-effective handling of ......
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Phosphoprotein analysis, a specialized area within proteomics, focuses on the locations, regulatory mechanisms, and biological functions of phosphorylation within proteins. Phosphorylation, one of the most prevalent post-translational modifications, is controlled by protein kinases and phosphatases. It regulates protein activity, structure, and interactions dynamically by adding or removing phosphate groups at specific amino acid residues, including serine, threonine, and tyrosine. This modification i......
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