Resources

Proteomics Databases



Metabolomics Databases

• • The Use of Mass Spectrometry in Protein Identification Processes

  Mass spectrometry (MS) is a powerful and precise tool for the identification of proteins in biological and biochemical research. It allows researchers to identify proteins and their modifications in complex biological samples. The basic steps for protein identification using mass spectrometry are as follows.

• • Analysis of 3' Poly(A) Tail in Human Cell mRNA

  The mRNA (messenger ribonucleic acid) in human cells is a crucial intermediate product for gene expression, carrying genetic information from DNA transcription to protein translation. The maturation and stability of mRNA are regulated through a series of post-transcriptional modifications, with one of the most important processes being the addition of a poly(A) tail at the 3' end.

• • The Application of CD in Protein Secondary Structure Analysis

  Circular Dichroism (CD) is a widely used technique for analyzing protein secondary structure. It is based on the differential absorption of polarized light by different protein secondary structures, providing information about protein conformation. In protein secondary structure analysis, the applications of CD spectroscopy mainly include the following aspects.

• • Principle of Salivary Acid Detection for Cell Membrane

  Sialic acid is a type of terminal sugar residue widely present on glycoproteins and glycolipids on the cell membrane surface of animals, and it plays important biological roles. The principle of sialic acid detection on the cell membrane is based on the specific binding of certain molecules (such as lectins or antibodies) to cell surface sialic acid, followed by observation and analysis of this binding using appropriate detection methods.

• • Overview of Antibody Drug Thermal Stability Analysis Services

  Thermal stability analysis of antibody drugs is a crucial step to ensure drug quality, safety, and efficacy. Thermal stability studies involve exposing antibody drugs to different temperature conditions and subsequently assessing changes in their structure, function, and biological activity.

• • Overview of Methods for Identification of Collagen Protein

  Collagen is a widely present structural protein in animal tissues, especially in the skin, bones, tendons, ligaments, and many other connective tissues. Due to its crucial role in maintaining tissue structure and function, the identification of collagen is highly important for biomedical research and clinical diagnosis.

• • 2D Blue Native/SDS-PAGE Analysis

  The 2D Blue Native (BN)/SDS-PAGE technique is a powerful and sophisticated method for analyzing protein complexes. By combining Blue Native polyacrylamide gel electrophoresis (BN-PAGE) with sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), researchers can gain comprehensive insights into the properties and compositions of protein complexes.

• • Two-Dimensional Gel Electrophoresis Image Analysis

  Proteomics, the study of the proteome, requires advanced techniques for identifying and separating proteins. Two-dimensional electrophoresis (2-DE) is a cornerstone technology in this field, combining isoelectric focusing (IEF) and SDS-polyacrylamide gel electrophoresis (SDS-PAGE) to achieve high-resolution protein separation.

• • Protein Immunoblotting and Electrotransfer

  Protein immunoblotting, commonly known as Western Blotting, is a pivotal technique in molecular biology, biochemistry, and immunogenetics. This method is essential for detecting and analyzing specific proteins within a sample, providing valuable qualitative and semi-quantitative data.

• • Two Dimensional Gel Electrophoresis Service

  Two-dimensional gel electrophoresis (2-DE) is a crucial technique in proteomics, enabling the separation and analysis of complex protein mixtures from biological samples. This method separates proteins in two stages: isoelectric focusing (IEF), which separates proteins based on their isoelectric point (pI), and SDS-polyacrylamide gel electrophoresis (SDS-PAGE), which separates proteins by their molecular weight (Mr).