Protein Separation (Electrophoresis and SDS PAGE) | Bioanalytics

Understanding Electrophoresis and SDS PAGE in Protein and DNA Separation In this video, we delve into the process of separating proteins and DNA using electrophoresis. The host explains the basic principles of electrophoresis, describing how a gel matrix and an electric current are used to separate molecules by size. The video also covers SDS PAGE, a technique that allows the separation of proteins by making them uniformly negatively charged. Additional methods such as the use of a stacking gel, resolving gel, and beta-mercaptoethanol for breaking disulfide bonds between protein molecules are discussed. Finally, the host explains how a molecular weight ladder is used to estimate the size of separated proteins. This comprehensive guide is ideal for students and researchers looking to understand the principles behind these crucial biochemical techniques. 00:00 Introduction to Protein and DNA Separation 00:14 Understanding Electrophoresis 00:49 How Electrophoresis Works 02:10 Challenges with Protein Separation 02:47 Introduction to SDS-PAGE 03:23 The Role of Gel Layers in Separation 04:14 Using Beta-Mercaptoethanol 04:53 Estimating Protein Weight with SDS-PAGE 05:51 Conclusion and Final Thoughts