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. 2016 Feb 19;72(Pt 3):172–178. doi: 10.1107/S2053230X16000753

Table 2. Crystallization.

Protein ZmPPX ZmPPX(30–508) ZmPPX(30–508) E137A mutant
Method Hanging-drop vapour diffusion Sitting-drop vapour diffusion Sitting-drop vapour diffusion
Plate type 48-well plates 48-well plates 48-well plates
Temperature (K) 293 293 293
Protein concentration (mg ml−1) 10 8 8
Buffer composition of protein solution 50 mM Tris pH 8.0, 500 mM NaCl, 5% glycerol 50 mM Tris pH 8.0, 500 mM NaCl, 5% glycerol 50 mM Tris pH 8.0, 500 mM NaCl, 5% glycerol
Composition of reservoir solution 15.2%(w/v) polyethylene glycol 3350, 2%(w/v) polyethylene glycol 8000, 72 mM Tris pH 8.0, 144 mM magnesium chloride hexahydrate, 20 mM HEPES/sodium hydroxide pH 7.5, 1.6%(v/v) glycerol, 8%(v/v) DMSO 0.2 M magnesium chloride hexahydrate, 0.1 M Tris pH 8.5, 25%(w/v) polyethylene glycol 3350 0.2 M magnesium chloride hexahydrate, 0.1 M Tris pH 6.5, 25%(w/v) polyethylene glycol 3350
Volume and ratio of drop 3 µl in total, 2:1 2 µl in total, 1:1 2 µl in total, 1:1
Volume of reservoir (µl) 200 100 100