Table 1. Summary of crystallization, data collection and processing for room-temperature and low-temperature data.

	Room-temperature data		Low-temperature data
Crystallization conditions
Temperature (K)	296	296	296
Crystallization conditions	Earth-grown by vapor diffusion in sitting drops	Microgravity-grown by liquid–liquid diffusion in cryostat	Earth-grown by vapor diffusion in sitting drops
Drop	8% ammonium sulfate	20% ammonium sulfate	15% ammonium sulfate
Reservoir	14–16% ammonium sulfate	None	15% ammonium sulfate
pH	6.5	6.5	6.5
Growth period (d)	14	14	14
Data-collection parameters
Radiation source	Rigaku RU-200 Cu rotating anode, 45 kV, 40 mA	Rigaku RU-200 Cu rotating anode, 45 kV, 40 mA	Beamline 8.2.2, ALS synchrotron, λ = 1.06 Å
Detector	SDMS 2-detector system; distances of 930 and 985 mm	SDMS 2-detector system; distances of 940 and 1000 mm	ADSC Q315 3 × 3 CCD detector; distance of 205 mm
Monochromator	Supper graphite	Supper graphite	Double crystal, Si(111)
Scans	45° ω scans in 0.10–0.12° increments	50° ω scans in 0.10° increments	0.333° ϕ scans
Frame collection times (s)	120–200	300–360	45
No. of crystals	12	9	6
Temperature (K)	290	290	100
Mounting	Quartz capillaries	Quartz capillaries	Cryoloops
Data-processing statistics
Resolution (Å)	30.0–1.82		48.35–1.40 (1.45–1.40)
R sym or R merge	0.091		0.100 (0.354)
〈I/σ(I)〉	13.0		11.6 (2.9)
Completeness (%)	89.0		95.4 (67.3)
Multiplicity	8.2		7.23 (2.17)
No. of observations	2239616		4434593
Unique reflections	271689		613720
Crystal data
Space group	I222		I222
Unit-cell parameters (Å)	a = 174.27, b = 191.77, c = 202.50		a = 172.69, b = 190.30, c = 201.69
Z (particles per cell)	2		2