Table 1. X-ray data-collection statistics.

Values in parentheses are for the highest resolution shell.

Crystal system	Hexagonal
Space group	P61 or P65
Unit-cell parameters (Å)	a = b = 59.28, c = 125.73
Resolution (Å)	1.9 (1.97–1.90)
Unit-cell volume (Å3)	388631
No. of molecules per ASU	1
VM (Å3 Da−1)	4.74
Rmerge†	0.073 (0.54)
Completeness (%)	98.2 (86.4)
Redundancy	10.1 (6.1)
〈I/σ(I)〉	16.6 (2.6)
Radiation source	ALS‡ beamline 4.2.2
Wavelength used (Å)	1.1271

^† R _merge = , where I is the reflection intensity and I _av is the average intensity for multiple measurements of reflection i.

^‡Advanced Light Source, Berkeley, CA, USA.