Table 1.

Data measurement and refinement

Resolution, Å	Reflections*	Rmerge†	〈I/σ(I)〉	Rcryst‡	Rfree§
37.0–4.2	95.2	0.047	12.3	0.185	0.247
4.2–3.3	90.3	0.050	11.4	0.169	0.243
3.3–2.9	90.2	0.066	12.8	0.170	0.237
2.9–2.7	90.7	0.065	10.2	0.187	0.257
2.7–2.5	87.5	0.083	9.7	0.218	0.279
2.5–2.3	75.9	0.122	8.0	0.250	0.309
All	82.0	0.074	8.2	0.189	0.253

¹⁷⁸% measured with I > 2σ(I). 

^†∑ (I − 〈I〉)/∑I. 

^‡∑ |F_o − F_c|/∑F_o. 

^§For 5% of observed reflexions (4,080) chosen at random over 8–2.3  Å.