Table 3. Structure refinement statistics.

Values in parentheses are for the highest isotropic resolution shell.

Resolution (Å)	47.53–3.13†–2.47 (2.71–2.47)
No. of residues/non-H atoms	266/2071
R work	0.219 (0.355)
R free	0.255 (0.368)
CC work	0.993 (0.492)
CC free	0.913 (0.590)
No. free reflections	910
R all	0.223 (0.379)
Average ADP (Å2)	82
R.m.s. deviations from ideal
Bond lengths (Å)	0.010
Angles (°)	1.755
Ramachandran plot
Allowed	261 (99.6%)
Outliers	1 (0.4%)
Solvent content (%)	76

^†As calculated by MOLPROBITY.

^‡The lowest high-resolution diffraction limit after the anisotropic cut-off.