Table 3. Data-collection, processing and scaling statistics and twinning analysis.

Space group	P41
Unit-cell parameters (Å)	a = b = 60.99, c = 148.60
Resolution range (Å)	50.0–2.10 (2.14–2.10)
No. of observations	211416
No. of unique reflections	31421
Completeness (%)	99.5 (93.5)
Rmerge†	0.075 (0.515)
Mean I/σ(I)	29.13 (2.39)
Average redundancy	6.7 (3.5)
Estimated twinning fraction (%)	37.2
Mean |L|‡	0.40
Mean |L2|‡	0.224

^† R _merge = , where I _i(hkl) is the ith observation of a symmetry-equivalent reflection hkl.

^‡Mean |L| = 0.5 and mean |L ²| = 0.333 for untwinned data; mean |L| = 0.375 and mean |L ²| = 0.2 for twinned data.