Protein electrophoresis, with SDS-PAGE being the most common, is an experimental technique to separate/purify proteins according to their molecular weight. Fujifilm Wako offers a series of reagents including the precast gel "SuperSepTM Ace", sample buffer, running buffer, molecular weight marker, CBB staining solution, and silver staining kit. In "Reagents for Preparation of Polyacrylamide Gels for SDS-PAGE", we provide a quick reference table for the amounts of stock solutions needed to prepare gels of different concentrations.