Table 2. Crystallization.

Method	Hanging-drop vapour diffusion
Plate type	24-well hanging-drop plate
Temperature (K)	289
Protein concentration (mg ml−1)	5
Buffer composition of protein solution	20 mM Tris–HCl pH 7.4, 150 mM NaCl, 5%(v/v) glycerol
Composition of reservoir solution	2.0 M sodium formate, 0.1 M MES pH 6.5
Volume and ratio of drop	2 µl (1:1)
Volume of reservoir (µl)	500