Table 1.

Data Collection and Refinement Statistics

Data Collection
Space group	P212121
Cell dimensions
a, b, c (Å)	44.14, 57.39, 141.90
α, β, γ (°)	90.0, 90.0, 90.0
Resolution (Å)	70.9–2.00 (2.05–2.00)
Rsym	0.06 (0.35)
I/σ(I)	9.7 (2.6)
Completeness (%)	99.3 (92.7)
Redundancy	4.4 (3.5)
Refinement
Resolution (Å)	70.0–2.00 (2.05–2.00)
Number of reflections	23,719
Rwork/Rfree	21.5/25.9 (28.6/32.6)
Number of atoms
Protein	2722
Calcium ion	2
Water molecules	211
Average B factors	33.67
Rmsd
Bond lengths (Å)	0.013
Bond angles (°)	1.388
B factors	1.523
Ramachandran plot statistics	90.8% in the core
	9.2% in the allowed

Highest-resolution shell is shown in parentheses.

R_sym = Σ_hkl|I_hkl − <I_hkl>|/Σ_hklI_hkl.