Table 1.

Data Collection and Refinement Statistics

Data collection
Space group	P63
Resolution range (Å)	30-2.0 (2.05-2.0)
Unit-cell parameters (Å)	a = b = 78.25
	c =100.10
Measurements	216,335
Unique reflections	23,411 (1,686)
Redundancy	9.2 (8.3)
Completeness (%)	99.5 (96.1)
<I/σ(I)>	15.5 (5.8)
Rmerg(%)b	9.1 (40.8)
Refinement
No. of protein atoms	2,993
No. of water atoms	148
RMSD of bond lengths (Å)	0.007
RMSD of bond angle (°)	1.4
Rwork (%)c	17.5 (20.2)
Rfree (%)d	22.6 (23.9)

^aFigures in brackets apply to the highest-resolution shell.

^bR_merg = Σ_hΣ_i|I(h,i)-<I(h)>|/Σ_hΣ_iI(h,i), where I(h,i) is the intensity of the ith observation of reflection h, and <I(h)> is the average intensity of redundant measurements of reflection h.

^cR_work= Σ_h|F_obs−F_calc|/Σ_h F_obs.

^dR_free = Σ_h|F_obs – F_calc|/Σ_h F_obs for 10% of the reserved reflections.