Table 1.

X-ray diffraction data collection and refinement statistics^a

Data collection
Wavelength (Å)	0.97921
Data range (Å)	40.15–1.46
Space group	C2
Unit Cell	a=58.20 Å, b=71.58 Å, c=58.45 Å, β=112.55°
Unique reflections	38596 (3766)
Avg. multiplicity	7.5 (7.1)
Mosaicity	0.21
Completeness (%)	99.70 (97.97)
CC1/2	0.98 (0.86)
1 Rmeas	0.11 (0.70)
I/σI	15.91 (2.99)
Refinement
Model:
Chain A (number of residues)	93
Chain B (number of residues)	93
Water molecules	255
Data Range (Å)	40.15–1.46
2Rwork (%)	17.2
2,3Rfree (%)	20.8
Average B-values (Å2):
Main Chain	22.8
Side Chain	37.6
Water	43.0
All Atoms	32.3
RMSDs from target values:
Bond Lengths (Å)	0.007
Bond Angles (°)	0.71
Ramachandran outliers	0

Values in parentheses pertain to the highest resolution shell.

¹R_meas = Σ_hkl (n/n−1)^1/2 Σ_h,i |I_hkl,i−<I_hkkl>|/Σ_hklΣ_h,iI_hkl,i.

²R factor= Σ_h, |F_obs−|F_calc|/Σ_h|F_obs|.

³Test set for R_free consisted of 5.0 % of data.