Resources

Proteomics Databases



Metabolomics Databases

• • MALDI-TOF: How It Works

  Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF) is a powerful analytical technique widely used for biomolecule and organic compound analysis. Its rapidity, simplicity, and precision have made it indispensable in modern life sciences research and clinical diagnostics. MALDI-TOF combines the gentle ionization provided by MALDI with the rapid and accurate mass measurement capabilities of TOF, enabling the detection and analysis of proteins, peptides, carbohydrates......

• • Analysis of Milk for the Lipids, Carbohydrates, and Proteins

  The analysis of milk for the lipids, carbohydrates, and proteins constitutes a crucial area of research in food science and nutrition, because the proportions and structural forms of these three components not only influence the nutritional value of milk but also play a pivotal role in determining its stability and sensory attributes during processing and storage. Precise quantification and characterization of these components enable scientists and food manufacturers to refine milk processing techniqu......

• • MALDI Protein

  MALDI protein analysis is a mass spectrometry technique employed for the detailed examination of proteins. This method involves blending the sample with a specific matrix substance, utilizing laser pulses for ionizing the sample molecules, and subsequently measuring their mass with a mass spectrometer. This approach facilitates the identification and analysis of complex protein molecules, contributing to a deeper comprehension of protein structures and functionalities. Proteins, as molecular machines,......

• • Antibody Glycosylation Analysis

  Antibody glycosylation analysis is a technique focused on examining the structural and functional characteristics of glycosylation within antibody molecules. As a prevalent form of post-translational modification, glycosylation is particularly significant in antibodies, which are pivotal immune proteins in biopharmaceuticals, disease diagnosis, and treatment. These modifications influence not only the structural integrity and stability of antibodies but also their biological activity, pharmacokinetics......

• • C-Terminal Amino Acid Analysis

  C-terminal amino acid analysis is a technique employed to specifically recognize and identify the C-terminal (carboxyl-terminal) amino acid sequence in proteins or polypeptides. Unlike N-terminal amino acid analysis, which focuses on one end of the protein chain, C-terminal analysis centers on the opposite end, which is crucial for protein function, stability, and molecular interactions. In biological and biochemical studies, understanding the C-terminal structure of proteins can reveal their cellular......

• • Tandem MS Peptide Sequencing

  Tandem MS peptide sequencing is an advanced analytical technique utilized for elucidating protein amino acid sequences. This method integrates liquid chromatography and mass spectrometry to conduct multiple rounds of mass analysis on peptide fragments, thereby enabling precise sequencing within complex samples. In proteomics, tandem MS peptide sequencing is invaluable for providing primary structural information of proteins, such as amino acid sequences, which aids in elucidating the functions, intera......

• • N-Terminal Residue Analysis

  The primary objective of N-terminal residue analysis is to determine and evaluate the N-terminal amino acid sequence of proteins. The N-terminus, or the first amino acid in a protein chain, plays a pivotal role in influencing the overall structure and functionality of the protein. Modifications at this terminal, such as N-terminal formylation, acetylation, or other covalent alterations, frequently occur during protein synthesis and processing within organisms. These modifications can impact a protein'......

• • Peptide Characterization Techniques

  Peptide characterization techniques play a pivotal role in modern biological research and applications, encompassing fields such as proteomics, drug development, biomarker discovery, and disease diagnosis. In proteomics, these techniques are instrumental in analyzing peptides produced by protein degradation, facilitating the detailed characterization of protein structure and function. This understanding provides insights into the complex biochemical processes occurring within organisms. In drug develo......

• • Analysis of Protein-Ligand Interactions by Fluorescence Polarization

  The analysis of protein-ligand interactions by fluorescence polarization is a widely employed technique that enables the real-time quantification of binding interactions in biological systems without perturbing their integrity. This method is based on the principle that the fluorescence polarization of a system changes when a fluorescently labeled ligand binds to a target protein, thereby providing a direct measure of the interaction. Fluorescence polarization (FP) leverages the rotational dynamics of......

• • Analytical Methods for Physicochemical Characterization of Antibody-Drug Conjugates

  The analytical methods for physicochemical characterization of antibody-drug conjugates (ADCs) primarily encompass high-performance liquid chromatography (HPLC), mass spectrometry (MS), differential scanning calorimetry (DSC), and dynamic light scattering (DLS). ADCs integrate the precise targeting capability of monoclonal antibodies with the potent cytotoxicity of small-molecule drugs. By harnessing the targeting specificity of antibodies, ADCs ensure the selective delivery of drugs to cancerous or d......