Table 1.

Crystallographic data statistics

	Native + GlcNAc	Native	Derivatives
			UO2(AcO)2	Pb(AcO)2/Me3PbCl
Temperature	RT	RT	RT	RT
Resolution, Å	2.0	2.2	3.1	2.4
Completeness, %	98.1	98.3	80.5	94.3
Rsym∗	10.7	10.6	15.1	8.8
I/σ(I) last shell	2.0	2.2	2.1	2.4
MIR analysis
Number of sites			1	1
Rcullis†			0.73	0.62
Phasing power, ac/c‡			1.01 (1.59)	2.67 (1.51)
Refinement
Model	Residues 45–264, 1 GlcNAc, and 179 water molecules
Data	Native + GlcNAc, 15-2.0 Å, all reflections
R factor§	0.183 (Rfree = 0.198)
rms deviations	Bonds, 0.005 Å; angles, 1.40°; temperature factors, 0.86 Å2
Average B factor, Å2	27.95

Data collection and phase determination by MIR. Crystal space group: I4, a = b = 108.93 Å, c = 64.06 Å, α = β = γ = 90°. RT, room temperature. ac/c, acentric and centric data. 

^*R_sym = ∑|I − 〈I〉|/∑|I|. 

^† R_cullis = ∑∥F_(PH) ± F_(P)| − |F_H(calc)∥/∑|F_(PH) ± F_(P)|. 

^‡ Phasing power, mean value of the heavy atom structure amplitudes divided by the residual lack-of-closure. 

^§ Five percent of the reflections were selected for R_free determination.