X-RAY DIFFRACTION |
8.5 |
294 |
Crystallization was performed in an anaerobic chamber (95% N2/5% H2) with anoxic solution using the sitting drop method (96-well 2-drop MRC Crystallization Plates in polystyrene, Molecular Dimensions, Suffolk, UK). The crystallization reservoir contained 100 mM Tris/HCl, pH 8.5, 1% (w/v) polyethylene glycol 3350, 30% (w/v) polyethylene glycol 4000, and 200 mM Na acetate trihydrate. Crystallization drop contained 1 ul HdrABC-MvhAGD at 25 mg/ml premixed with 2 mM FAD, 10 mM CoM-SH and 1 ul of precipitant. The crystals appear after 1-2 weeks and are cryoprotected in the crystallization solution supplemented with 30% glycerol |