3.1.3.67 - 25140 3.1.3.67 fusion-protein is purified by Glutathione-Sepharose-4B affinity chromatography 693117 3.1.3.67 Poly-His tag proteins are purified with a HisTrap HP kit using buffers with 10 mM mercaptoethanol, enzymes are further purified with a gel filtration column in 100 mM NaCl, 10 mM Tris, pH 7.4, and 1 mM dithiothreitol. Final purification is done with a anion exchange column in 10 mM Tris, pH 7.4 with a linear gradient from 50-600 mM NaCl. 690927 3.1.3.67 recombinant enzyme 650767 3.1.3.67 recombinant PTEN is purified to near homogeneity using four sequential column chromatographic steps: a diethylaminoethyl (DEAE) Sepharose anion exchange column, a bio-gel hydroxyapatite HT (HAP) column, a Mono-S cation exchange column, and a Mono-Q anion exchange column 682679 3.1.3.67 treatment with alkaline phosphatase fully dephosphorylates the phosphorylation sites. Unphosphorylated PTEN and alkaline phosphatase can be separated by ion exchange column chromatography 682679