Table 1. Data-collection statistics.

Values in parentheses are for the outer shell.

Space group	P3121
Unit-cell parameters
a (Å)	75.46
b (Å)	75.46
c (Å)	94.23
Wavelength (Å)	1.5418
Unique reflections	15843 (2151)
Resolution range (Å)	53.70–2.21 (2.33–2.21)
Completeness (%)	99.2 (94.2)
Multiplicity	7.3 (7.0)
Mean I/σ(I)	23.8 (5.9)
R merge (%)†	0.067 (0.322)
Average mosaicity (°)	0.62

^† R _merge = , where I _i(hkl) is the ith measurement of the intensity of reflection hkl and 〈I(hkl)〉 is the mean intensity of reflection hkl.