SDS-PAGE Detection of Proteins

SDS-PAGE (Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis) is a commonly used protein separation and purification technique. It utilizes sodium dodecyl sulfate to eliminate the effects of protein structure and electrophoresis, allowing proteins to be separated based solely on differences in molecular mass. It is widely used for protein separation, purity identification, molecular weight determination, and expression analysis, among other applications.

Protein SDS-PAGE detection includes two parts: protein SDS-PAGE electrophoresis and post-electrophoresis gel image analysis. During protein SDS-PAGE electrophoresis, proteins with different molecular masses migrate at different rates. Proteins with relatively larger molecular masses migrate slower under the influence of the electric field and remain closer to the sample wells at the end of electrophoresis. In contrast, proteins with lower molecular masses migrate faster and are located farther from the sample wells at the end of electrophoresis. After staining with methods such as silver staining or Coomassie Brilliant Blue, the size, number, and distribution of protein bands on the gel can be observed.

Biotech Company Baiteipack uses the Bio-Rad Mini-PROTEAN® Tetra gel system to provide fast and efficientprotein SDS-PAGE detectionservice technology packages for various proteomics analyses, including protein molecular weight determination, protein identification, sample purity analysis, disulfide bond identification, and protein quantification. Free consultation is welcome.

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