Table 1. Crystallographic data reduction and model refinement statistics.

Crystal parameters
Space group	P 21
Unit cell	a = 51.439 Å, b = 175.176 Å, c = 97.065 Å, β = 95.3°
Data Collection
Resolution	39.9-2.05 Å (2.12-2.05)*
Unique reflections	101735 (9604)
Redundancy	3.4 (3.3)
Completeness	95.32% (90.60%)
Rmerge	6.7% (53.0%)
I/σ(I)	6.04 (1.77)
Refinement statistics
Rwork	18.18% (28.74%)
Rfree	22.62% (33.17%)
No. atoms (protein/solvent)	10996/553
r.m.s.d.
Bonds	0.014 Å
Angles	1.39°
Average B-factor
Protein	47.5 Å2
Solvent	45.8 Å2
Ramachandran Statistics
Favored	97.0%
Allowed	3.0%

^*Values in parentheses are for highest resolution bin.