3.1.1.82 - 3.1.1.82 partial 3.1.1.82 Phedase type 1 3.1.1.82 Phedase type 2 3.1.1.82 PPD type 1 3.1.1.82 PPD type 2 3.1.1.82 single-step affinity chromatography through a GSTrap FF column 3.1.1.82 using Ni-NTA chromatography