Table 1. Crystal parameters and data-processing statistics.

Values in parentheses are for the highest resolution shell.

Space group	P2221
Unit-cell parameters (Å)	a = 42.8, b = 86.8, c = 171.3
Resolution limits (Å)	20.0–1.98 (2.09–1.98)
Total No. of frames (Δϕ = 1°)	240
Mosaicity (°)	0.6
Total No. of reflections	250667 (29122)
Unique reflections	43478 (5514)
Multiplicity	5.76 (5.28)
Rmerge (%)	7.5 (30.2)
〈I/σ(I)〉	18.6 (4.3)
Completeness (%)	95.6 (84.9)