Table 2. Crystallization.

Method	Hanging-drop vapour-diffusion method
Plate type	24-well hanging-drop plate (Hampton Research)
Temperature (K)	289
Protein concentration (mg ml−1)	12
Buffer composition of protein solution	10 mM HEPES, 75 mM NaCl pH 7.2
Composition of reservoir solution	0.1 M bis-tris pH 5.5, 17% PEG 3350
Volume and ratio of drop	2 µl, 1:1
Volume of reservoir (µl)	1000