4.2.1.163 | hanging drop vapor diffusion method, crystals of the native and selenomethionine-labelled enzyme are grown at 0.1M MES (pH 6.0), 0.7 M potassium thiocyanate, 7% (w/v) PEG 12000, 5% (w/v) PEG 550 MME, 10 mM dithiothreitol and 0.1 M Tris (pH 7.0), 0.7 M potassium thiocyanate, 6.4% (w/v) PEG 20000, 7% (w/v) PEG 550 MME,10 mM dithiothreitol, respectively |