Table 1.

Data collection and refinement statistics

Data collection statistics
Space group	P6322
Cell parameters, Å	a = b = 172.02, c = 276.57
Resolution range, Å	25-2.8
Unique/total reflections	59,863/706,383
Redundancy	11.8
Completeness, %*	99.8 (99.8)
Rmerge† (%)	12.0
Refinement and model statistics
R factor/Rfree‡	0.254/0.304
Resolution range, Å	15-2.8
Modeled residues	HslV; (1–174) × 4
	HslU; (1–139, 151–165, 218–443), (1–129, 221–443)
Number of ligands	2 (AMP-PNP)
Number of solvent molecules	293
Rmsd bond lengths, Å	0.014
Rmsd bond angles, °	1.65
Rmsd NCS protein, Å	HslV (172 matching Cα); 0.26 (free), 0.24 (complexed)
	HslU (333 matching Cα); 0.27

Rmsd, root-mean-square deviation. 

^*Values are for the reflections in the highest resolution shell (2.8–2.87 Å). 

^† R_merge = Σ_hΣ_i|I(h, i) − 〈I(h)〉|/Σ_hΣ_iI(h, i), where I(h, i) is the intensity of the ith measurement of reflection h, and 〈I(h)〉 is the average value over multiple measurements. 

^‡ R = Σ∥F_o| − |F_c∥/Σ|F_o|, where R_free is calculated for the 10% test set of reflections.