Table 4. Structure refinement.

Values in parentheses are for the outer shell.

Resolution range (Å)	48.86–2.00 (2.052–2.000)
Completeness (%)	99.9
σ Cutoff	2.00
No. of reflections, working set	19446 (1403)
No. of reflections, test set	991 (69)
Final Rwork†	0.185 (0.196)
Final Rfree‡	0.226 (0.251)
Cruickshank DPI	0.1220
No. of non-H atoms
Protein	1959
Ligand	0
Water	63
Total	2022
R.m.s. deviations
Bond lengths (Å)	0.014
Angles (°)	1.583
Average B factors (Å2)
Protein	29.6
Water	32.6
Ramachandran plot
Most favored (%)	98.8
Allowed (%)	1.2

^†R_work = .

^‡R_free is calculated the same way as R_work for data omitted from refinement (5% of the reflections in the data set).