Table 2. Crystallization.

Method	Sitting-drop vapor diffusion
Plate type	Intelli-Plate (Art Robbins Instruments)
Temperature (K)	293
Protein concentration (mg ml−1)	10
Buffer composition of protein solution	50 mM Tris–HCl pH 8.0, 5% glycerol
Composition of reservoir solution	30%(w/v) PEG 8000, 0.1 M sodium acetate pH 4.5, 0.2 M lithium sulfate
Volume and ratio of drop	5 µl protein solution and 5 µl reservoir solution (1:1)
Volume of reservoir (µl)	50