(a).

Data collection. Values in parentheses refer to the highest resolution shell.

Data set	Peak	Edge	Remote
X-ray source	Beamline 6C, Pohang Accelerator Laboratory
Wavelength (Å)	0.9794	0.9796	1.1271
Resolution (Å)	50–3.2 (3.31–3.2)	50–3.2 (3.31–3.2)	50–3.0 (3.11–3.0)
Unit-cell parameters (Å, °)	a = b = 109.2, c = 255.4, α = β = 90, γ = 120
Completeness (%)	92.0 (71.5)	91.8 (73.0)	91.9 (77.3)
Rmerge†	0.077 (0.265)	0.075 (0.267)	0.061 (0.183)
Redundancy	7.0 (4.2)	7.0 (4.3)	7.7 (4.6)
Average I/σ(I)	15.8 (2.4)	16.4 (2.5)	29.4 (3.6)