Step-by-Step Guide to Loading Protein Ladders in Electrophoresis

If you are working in a molecular biology lab, you have to know how to do electrophoresis. Whether it is SDS-PAGE or Western blotting, one crucial reagent you use to approximate the molecular weight of unknown proteins is protein ladders. In this brief guide, we will walk you through how to load a protein ladder properly so that the gel results are correct & reliable.