Resources

Proteomics Databases



Metabolomics Databases

• • Optimizing PRM Quantitative Proteomics for High-Sensitivity Protein Detection

  Accurate detection of low-abundance proteins remains a fundamental challenge in proteomics, particularly in areas such as early disease screening, biomarker validation, and drug target discovery. Parallel Reaction Monitoring (PRM) has emerged as a leading approach in targeted proteomics due to its superior quantitative accuracy and analytical specificity. Through systematic optimization of PRM strategies, researchers are steadily advancing the sensitivity of detection, enabling reliable quantification of...

• • 5 Strategies to Address Challenges in Targeted Proteomics

  Targeted proteomics has become increasingly prominent in recent years in the fields of biomarker validation, investigation of disease mechanisms, and translational medicine. In contrast to discovery-based approaches, targeted methods prioritize quantitative accuracy, detection sensitivity, and reproducibility. However, a range of technical obstacles persist in practical applications, including the detection of low-abundance proteins, lack of standardized methodologies, and variability in data ........

• • What is Targeted Quantitative Proteomics

  Targeted Quantitative Proteomics is an analytical approach in proteomics characterized by high sensitivity and specificity. It is widely applied in biomarker validation, elucidation of disease mechanisms, pharmacodynamic assessment, and quality control. Compared with discovery-based proteomics, targeted quantification emphasizes precise and highly reproducible quantitative analysis of predefined target proteins. This article systematically outlines the fundamental principles, mainstream technical ..........

• • How to Determine Protein Full-Length Sequence

  Determining the protein full-length sequence is a foundational task in protein research, particularly crucial in studies involving novel protein functions, structural analysis, antibody development, and recombinant expression. But how can researchers obtain the complete amino acid sequence of a protein? This article provides a technical overview and practical strategies based on current mainstream approaches and recent advances. What Is a Protein Full-Length Sequence? A protein full-length sequence refers..

• • Full-Length Sequencing Strategies for Protein Isoform Characterization

  From subtle structural differences to functional assessment, how can protein full-length sequencing uncover the “hidden information” embedded within isoforms? In the development of macromolecular biopharmaceuticals—such as protein-based therapeutics, recombinant enzymes, and engineered antibodies—the presence of protein isoforms often represents a double-edged sword: On one hand, naturally occurring isoforms introduce structural diversity and serve as a foundation for functional regulation; On the other....

• • How Protein Full-Length Sequencing Accelerates Drug Development | MtoZ Biolabs

  What Is Protein Full-Length Sequencing? Protein full-length sequencing is defined as the determination of the complete amino acid sequence of a protein, spanning from the N-terminus to the C-terminus, using mass spectrometry (MS). This process also enables the identification of potential post-translational modifications (PTMs), isoforms, and contaminant proteins. Typically, it involves: 1. Multi-enzyme digestion followed by reconstruction of overlapping coverage regions 2. Integration of database search....

• • Ultimate Guide to Protein Full-Length Sequencing: Techniques, Applications, and Why It Matters

  The relationship between gene expression levels and protein function is not always directly proportional, making the direct measurement and analysis of proteins critically important. The advent of protein full-length sequencing has equipped scientists with a powerful means to decode the primary structure of proteins, significantly advancing fields such as biomedical research, precision medicine, and drug development. Over recent decades, protein sequencing technologies have evolved from classical Edman.....

• • Liposome Cryo-EM

  Liposome Cryo-EM refers to a technique for conducting in situ, high-resolution imaging of synthetically engineered liposomes using cryo-electron microscopy. This method combines the high precision of advanced electron microscopy with the biological relevance of liposome-based model systems, enabling structural and physicochemical characterization of liposomes under near-native conditions. These analyses include their ultrastructure, physical properties, and interactions with therapeutic molecules such as...

• • Indrop Sequencing

  Indrop Sequencing is a high-throughput single-cell transcriptomic technology that enables the capture and profiling of gene expression at the individual cell level. Its core mechanism involves the use of microfluidic chips to encapsulate single cells along with barcoded hydrogel beads into individual oil droplets, allowing for the isolation of cellular RNA, reverse transcription, and library construction. As a representative method of droplet-based single-cell sequencing, Indrop Sequencing offers distinct..

• • De Novo Protein Sequencing Analysis Service

  De novo protein sequencing analysis service is an analytical method that determines the primary structure of proteins—namely, their amino acid sequence—directly through mass spectrometry, without the need for any pre-existing reference sequence. Unlike conventional protein identification approaches that depend on database matching, de novo protein sequencing is particularly well-suited for scenarios involving novel proteins, unknown post-translational modifications, antibody variable regions, or non-model..