Table 1. Data-collection and refinement statistics.

Values in parentheses are for the highest resolution shell.

Beamline	ID23-2, ESRF
Wavelength ()	0.873
Resolution ()	80.02.85 (2.922.85)
Space group	P1
Unit-cell parameters (, )	a = 61.91, b = 62.15, c = 81.26, = 78.6, = 86.2, = 59.9
Molecules per asymmetric unit	12
Unique reflections	156571 (9573)
Completeness (%)	92.9 (83.7)
R meas †	0.138 (0.351)
R merge ‡	0.128 (0.323)
Multiplicity	7.03 (6.43)
I/(I)	14.22 (5.60)
R work §/R free ¶	0.207/0.250
R.m.s.d. bonds ()	0.010
R.m.s.d. angles ()	1.055
Atoms (non-H)	6563
Solvent molecules	71
Ramachandran plot (from MolProbity)
Outliers (%)	0
Favoured (%)	92.9
Rotamer outliers (%)	0.4
PDB code	3qhs

^† R _meas = .

^‡ R _merge = .

^§ R _cryst = .

^¶ R _free is the cross-validation R factor computed for a test set of reflections (5%) which were omitted in the refinement process.