TABLE 2.

Refinement statistics

Data set	PDB accession code
	3EQN	3EQO
Resolution (Å)	27.2-1.70	31.5-2.3
R-factor/R-free (%)	14.9/18.4	14.2/20.0
No. of reflections	142399	73632
No. of atoms	13,016	12,519
r.m.s.d. from ideal values
Bond lengths (Å)	0.01	0.02
Bond angles (degree)	1.375	1.797
Average B-factor (Å2)
Protein (chain A/B)	14.5/14.3	18.9/21.1
Sugar chain (chain A/B)	32.9/25.4	44.0/44.8
Glycerol	22.3
Acetate ion	25.4
Zinc ion	20.7	39.1
Sodium ion	25.0
Gluconolactone (chain A/B)		24.6/26.3
Water	29.7	28.8
Ramachandran plot (%)
Favored (chain A/B)	87.4/87.9	84.5/84.4
Allowed (chain A/B)	12.4/11.9	15.3/15.3
Disallowed (chain A/B)	0.2/0.2	0.2/0.3