Magarose Beads have superparamagnetism and rapid magnetic responsiveness. Peptides, proteins, antibodies, oligomeric nucleotide biological ligands can be coupled to the surface of microspheres. Magarose Beads is an important carrier of the medical and molecular biology research tools. The particle size of Magarose Beads is about 30 to 100 µm and it is more suitable for biological examination and purification experiment. Glutathione Magarose Beads is an affinity chromatography medium for easy, one-step purification of glutathione S-transferase (GST)-tagged proteins produced using the pGEX series of expression vectors, other glutathione S-transferases and glutathione binding proteins. Glutathione Magarose Beads adsorb the target protein through affinity function. And under the magnetic force, the fusion protein is separated from the expression system. Glutathione Magarose Beads can be usded in GST Pull-down experiments, the operation is simple and quickly.