Table 3. Structure solution and refinement.

Resolution range (Å)	47.7–2.00
Completeness (%)	99.5
No. of reflections	37461
Final R cryst (%)	18.4
Final R free (%)	20.5
No. of atoms/residues
Protein	2451/330
Others	199/173
Sulfate	5/1
Trehalose	23/1
Water	171/171
Total	2650/503
R.m.s. deviations
Bond lengths (Å)	0.010
Bond angles (°)	1.284
Ramachandran plot
Most favoured (%)	97
Allowed (%)	2.7
Disallowed (%)	0.3