Purification of GST-tagged protein was performed with Glutathione HiCap Matrix and resins from various other suppliers. High purity was achieved using QIAGEN's new Glutathione HiCap Matrix. M: Marker; CL: Cleared lysate. Elution fractions are shown. Analysis was performed by SDS-PAGE. *Glutathione resin; †Fast-flow resin; ‡High-performance resin