| X-RAY DIFFRACTION |
6.5 |
293.15 |
The enzyme was crystallized at a concentration of 38.8 mg.ml-1 in 25 mM Tris/HCl pH 7.6, 10% (v/v) glycerol, and 2 mM dithiothreitol. Crystals were obtained anaerobically in a Coy tent filled with a N2/H2 (97:3 %) atmosphere by initial screening at 20 degrees Celsius using the sitting-drop method on 96-well MRC two-drop crystallisation plates in polystyrene (SWISSCI). The reservoir contained 90 ul of the following crystallization solution: 30 % (v/v) Polyethylene glycol 400, 100 mM MES pH 6.5, and 200 mM LiSO4. 0.7 ul of protein and 0.7 ul of the crystallization solution were spotted. |