Resources
Proteomics Databases
Metabolomics Databases
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• Maldi Tof Identification Microorganisms
Maldi Tof Identification Microorganisms is a method that uses Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry (MALDI-TOF MS) to rapidly identify and classify microorganisms. The core principle is to ionize the proteins in the microbial sample using laser energy, and then analyze these ions through a time-of-flight mass spectrometer. Maldi Tof Identification Microorganisms has a wide range of applications in medical diagnostics, food safety, environmental monitoring, and bi......
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2D proteomics is used to isolate and identify proteins in complex biological samples. The full name of the technique is Two-Dimensional Gel Electrophoresis (2-DE) . 2D proteomics combines two separation methods: isoelectric focusing and SDS-PAGE (polyacrylamide gel electrophoresis) to effectively separate and analyze protein molecules. The core value of this method lies in its ability to isolate thousands of proteins under a single experimental condition, allowing researchers to comprehensively analyz......
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Terminal Sequencing is a method used for analyzing the amino acid sequence of protein or peptide molecules, with a particular focus on determining the N-terminal (amino end) and C-terminal (carboxyl end) amino acid sequences of these molecules. The main applications of terminal sequencing technology include protein identification and characterization, protein structure and function research, and biomarker discovery. In drug development, this technology can be used to determine the structure of target ......
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• Unique Peptides Mass Spectrometry
Unique peptides mass spectrometry refers to a specialized approach using mass spectrometry to detect and quantify peptides that are uniquely generated from the enzymatic digestion of proteins. These unique peptides, having distinct sequences, serve as precise indicators of the expression levels of their corresponding proteins in biological samples. As such, unique peptides mass spectrometry is integral to various proteomic applications, including protein identification, quantification, post-translatio......
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• Biotherapeutic Characterization
Biotherapeutic characterization involves the thorough analysis and identification of various aspects of biopharmaceuticals, including their structure, physicochemical properties, and biological activity. The primary goal is to ensure the safety, efficacy, and quality consistency of biopharmaceutical products. These products, including vaccines, antibodies, and protein drugs, are highly complex due to their molecular structure and unique production processes. Biotherapeutic characterization plays a piv......
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• Protein Sequencing and Identification Using Tandem Mass Spectrometry
Protein sequencing and identification using tandem mass spectrometry is a powerful analytical approach that enables multi-stage separation and in-depth characterization of complex biological samples. By coupling multiple mass spectrometers, this technique facilitates precise identification and quantification of proteins within heterogeneous mixtures. The application of tandem mass spectrometry in protein analysis primarily falls into two categories: (1) protein identification through amino acid sequen......
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• Protein Sequence of Amino Acids
The protein sequence of amino acids refers to the linear arrangement of amino acids in a specific order within the protein molecule. As one of the essential biomolecules in living organisms, the function and structure of proteins are closely linked to their amino acid sequence. Proteins perform a wide variety of functions, such as catalyzing biochemical reactions as enzymes, contributing to cellular structure, and regulating physiological processes as hormones. The distinct arrangement of amino acids ......
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Mass fingerprinting analysis primarily involves the systematic examination of the mass spectral characteristics of complex compounds to generate a unique "fingerprint" spectrum. This analytical method separates, detects, and quantifies the chemical components in a sample using specialized instruments and techniques, producing a spectrum that reflects the overall chemical profile of the sample. These spectra are unique and characteristic, serving as a "chemical fingerprint" to identify the sample, asse......
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Affinity purification is a technique for separating and purifying biomolecules by exploiting their specific interactions, such as those between antigen and antibody, enzyme and substrate or inhibitor, and receptor and ligand. In this process, one molecule (the ligand) is immobilized on a solid support (e.g., agarose gel or magnetic beads) to create an affinity matrix. When a sample containing the target molecule passes through the matrix, the target specifically binds to the immobilized ligand, while ......
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Amino acid profiles refer to the composition and relative concentrations of amino acids in biological samples, such as proteins, cells, tissues, or food. Analyzing these profiles is essential for investigating various biological processes, including organism growth, development, metabolism, and disease progression. This analysis method reveals the composition and functional state of proteins by quantifying the types and concentrations of amino acids. Amino acid profile analysis is not only key to nutr......
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