Table 1. Crystal parameters, data-collection and refinement statistics.

Values in parentheses are for the highest resolution shell.

Crystal parameters
Space group	P212121
Unit-cell parameters (Å)	a = 83.26, b = 122.06, c = 181.996
Data-collection statistics
Wavelength (Å)	0.97857
Resolution range (Å)	34.33–2.4 (2.46–2.4)
No. of reflections (measured/unique)	459689/70340
Completeness (%)	99.5 (97.6)
Rmerge†	0.127 (0.42)
Multiplicity	6.2 (5.3)
Mean I/σ(I)	13.4 (3.93)
Refinement and model statistics
Resolution range (Å)	34.33–2.4
No. of reflections (work/test)	70340/3512
Rcryst‡	0.151 (0.197)
Rfree§	0.208 (0.245)
R.m.s.d. bonds (Å)	0.006
R.m.s.d. angles (°)	0.933
B factors (Å2)
Protein	34.08
Solvent	35.92
Phosphate	33.56
Tris	42.59
No. of protein atoms	13163
No. of protein waters	692
No. of auxiliary molecules	2 phosphate and 2 Tris
Ramachandran plot (%)
Favorable region	96.1
Additional allowed region	3.9
PDB entry	3qde

^† R _merge = , where I _i(hkl) is the intensity of an individual measurement of the reflection and 〈I(hkl)〉 is the mean intensity of the reflection.

^‡ R _cryst = , where F _obs and F _calc are the observed and calculated structure-factor amplitudes.

^§ R _free was calculated as R _cryst using a randomly selected 4.9% of the unique reflections that were omitted from the structure refinement.