2.8.1.2 - 2.8.1.2 glutathione-agarose column chromatography and benzamidine Sepharose column chromatography 2.8.1.2 GST Spin Trap column chromatography 2.8.1.2 GSTrap FF affinity column chromatography 2.8.1.2 homogeneity 2.8.1.2 Ni-NTA agarose column chromatography and DEAE-Sepharose column chromatography 2.8.1.2 partial 2.8.1.2 wild-type and 4 truncated versions lacking 10, 32, 50 and 70 amino acids at the C-terminus