Table 1. Data-collection statistics.

Values in parentheses are for the highest resolution shell.

Crystallization conditions	0.2 M ammonium sulfate, 23% PEG 4000, 0.1 M MES pH 6.5
Wavelength (Å)	1.5418
Temperature (K)	100
Resolution range (Å)	24.41–2.80 (2.95–2.80)
Space group	P1
Unit-cell parameters (Å, °)	a = 104.29, b = 118.12, c = 121.11, α = 62.66, β = 69.48, γ = 70.74
Observed reflections	307989 (26823)
Unique reflections	114916 (16491)
Data completeness (%)	99.1 (96.9)
Multiplicity	2.7 (1.6)
〈I/σ(I)〉	9.2 (3.7)
Rmerge (%)	0.085 (0.167)
Matthews coefficient (Å3 Da−1)	2.58
Solvent content (%)	52.32