| X-RAY DIFFRACTION |
7.5 |
293.15 |
The enzyme used for crystallisation was concentrated at 16 mg/ml in a buffer containing 25 mM Tris/HCl pH 7.6, 10% (v/v) glycerol, 2 mM dithiothreitol and 2 mM FAD. Crystals were obtained anaerobically in a Coy tent filled with a N2/H2 (97:3 %) atmosphere by initial screening at 20 degree Celsius using the sitting-drop method on 96-well MRC two-drop crystallisation plates in polystyrene (SWISSCI) containing 90 ul of crystallisation solution in the reservoir. The crystallisation solution was 1.5 M LiSO4 and 100 mM HEPES pH 7.5. Prior to freezing, the crystal was soaked in the crystallisation solution supplemented with 30% (v/v) glycerol. |
