Table 2.

Refinement statistics

	C219-peptide complex, 2AP2	Unliganded C219, 1AP2
Resolution, Å	500–2.40	500–2.36
R, %	23.1	22.0
Rfree, %	27.4	27.3
Atoms, n	3956	3722
Residues, n	501	468
Water molecules, n	164	102
rms deviation bonds, Å	0.006	0.005
rms deviation angles	1.19°	1.02°
Residues with unfavorable φ, Ψ	4	0
rmsd improper dihedrals	0.68°	0.71°
Average B-factors, Å2	36	16
Crossvalidated σA error, Å	0.50	0.51