Table 2. Crystallization.

Method	Vapor diffusion
Plate type	Sitting drop
Temperature (K)	293
Protein concentration	4
Buffer composition of protein solution	10 mM Tris–HCl pH 7.5, 200 mM NaCl, 2 mM MgCl2
Composition of reservoir solution	20%(w/v) PEG 4000, 100 mM MES pH 6.5, 5 mM MgCl2
Volume and ratio of drop	2 µl, 1:1 ratio
Volume of reservoir (µl)	500