Resources

Proteomics Databases



Metabolomics Databases

• • Fragmentation Peptide

  Fragmentation peptides are essential intermediates for analyzing the structure and function of complex proteins. Specific enzymes or chemical reagents can cleave protein backbones, generating peptide fragments suitable for subsequent mass spectrometry analysis, protein sequence determination, post-translational modification studies, and biomarker discovery. These shorter peptide chains allow techniques like Edman degradation and mass spectrometry to resolve protein sequences with greater precision. Ad......

• • MALDI Bacterial Identification

  MALDI bacterial identification is an advanced mass spectrometry-based technique widely employed for bacterial species, subspecies, and strain identification with exceptional sensitivity and resolution. By integrating matrix-assisted laser desorption/ionization (MALDI) and time-of-flight mass spectrometry (TOF MS), this technology has become a cornerstone in bacterial identification, clinical microbiology, environmental monitoring, and food safety. Its core principle involves irradiating bacterial samp......

• • Edman Degradation Sequencing Applications

  Edman degradation sequencing is a classic method used to determine the primary structure of proteins. This technique chemically modifies the N-terminal amino acid of a protein, enabling its stepwise removal from the N-terminus. This process generates a series of identifiable derivatives, facilitating the analysis of protein sequences. Specifically, the method involves the reaction of an isothiocyanate acyl derivative with the N-terminal amino acid of the polypeptide chain, producing a phenylthiohydant......

• • Amino Acid Analysis Service for Research and Industry

  Amino acid analysis service involves the quantitative and qualitative analysis of amino acid composition, concentration, and sequences using advanced analytical techniques. Amino acids, as the fundamental building blocks of proteins, are ubiquitous in all living organisms and are essential for regulating nearly all biological processes. Changes in amino acid concentrations are directly linked to health conditions, disease progression, and physiological functions. Consequently, amino acid analysis play......

• • Peptide Hormone Synthesis

  Peptide hormone synthesis refers to the chemical or biological production of bioactive peptide hormones. These hormones are small protein molecules composed of amino acids linked by peptide bonds and play vital roles in regulating physiological processes, including growth, metabolism, immune responses, and reproduction. They act by binding to specific receptors, triggering signaling pathways, and modulating cellular activity and behavior. For example, insulin, a well-known peptide hormone, regulates b......

• • Protein-Protein Interaction Network Analysis

  Protein-Protein Interaction Network Analysis is a crucial tool for understanding the complex relationships and functional modules formed by protein interactions within cells. Proteins rarely function in isolation; instead, they form intricate networks through stable or dynamic interactions, collectively regulating cellular processes. These networks are fundamental to biological phenomena such as signal transduction, gene expression, and metabolic regulation, and are tightly associated with disease ons......

• • Sequence-Specific DNA Binding Proteins

  Sequence-specific DNA binding proteins are proteins that specifically recognize and bind to defined DNA sequences. These proteins are universally present across all living organisms, from bacteria to humans, and play crucial roles in gene expression regulation, DNA repair, replication, and recombination. Their ability to bind depends on the precise arrangement of DNA sequences, allowing them to finely control gene activation and repression, thereby influencing cellular behavior and growth.   LC-MS (Li......

• • Protein-Protein Interaction Analysis

  Protein-Protein Interaction analysis is a critical method for investigating the interactions between protein molecules and their functional mechanisms within living organisms. This analysis aims to uncover the relationships between different proteins, including their binding sites, binding affinity, and dynamic interaction processes. These insights help scientists better understand the molecular basis of biological processes. Many essential cellular activities, such as signal transduction, cell cycle ......

• • IP Mass Spectrometry

  IP mass spectrometry is a powerful technique that integrates immunoprecipitation with mass spectrometry analysis, enabling the study of protein interactions and complex protein networks. In biological research, proteins serve as essential molecules responsible for nearly all cellular functions, and understanding protein-protein interactions is crucial for elucidating their functional mechanisms. Using specific antibodies, IP mass spectrometry isolates target proteins along with their interacting partn......

• • Co-Immunoprecipitation Mass Spectrometry

  Co-immunoprecipitation mass spectrometry is a powerful technique used to investigate protein-protein interactions and the composition of protein complexes. Immunoprecipitation utilizes specific antibodies to capture and isolate target proteins along with their interacting partners. The success of this method depends on the specificity and affinity of the antibodies, enabling efficient enrichment of target proteins from complex biological samples. Mass spectrometry, known for its high sensitivity and r......