Table 2.

Crystallographic refinement statistics

Residues included in the final model	23
Rfreea	21.6
Rworka	19.4
Average temperature factor (Å2)	65.8
Bond length rmsd (Å)	0.007
Angle rmsd (°)	0.96
Ramachandran plot (% in each region)b
Preferred	100
Allowed	0
Outliers	0

^aR and R_free = 100 × ∑||F_o| − |F_c||/∑|F_o|, where |F_o| is the observed structure factor amplitude and |F_c| is the calculated structure factor amplitude for the working and test sets, respectively.

^bAs defined in Coot.