How Does SDS-PAGE Work?

Electrophoresis is a major technique for separating proteins and other substances such as nucleic acids, purines, pyrimidines, some organic compounds and even inorganic ions. Most of the current electrophoresis is to separate the sample into the mobile phase in an immobilized medium. Polyacrylamide gel is one of the main media. It is a porous gel…

Protein Identification by Tandem Mass Spectrometry

Methods in protein identification Protein identification here refers to the accurate screening and identification of proteins using certain biochemical and physical methods. Traditional protein identification methods, including immunoblotting, comigration analysis of known or unknown proteins, and chemical sequencing of endopeptides, are complicated, time-consuming, and less accurate. Protein identification methods have evolved from the image analysis…