Table 1. Data-collection statistics.

Values in parentheses are for the highest resolution shell.

Space group	C2
Unit-cell parameters
a (Å)	244.7
b (Å)	87.4
c (Å)	166.6
β (°)	124.7
Resolution range (Å)	50.00-2.90 (3.00–2.90)
Measured reflections (I > 3σ)	113074 (9043)
Unique reflections	60563 (5011)
Completeness (%)	94.3 (78.8)
Redundancy	1.8 (1.8)
Mean I/σ(I)	9.6 (1.8)
Rmerge† (%)	8.9 (29.1)
Space group	C2

^† R _merge = , where I(h, i) is the intensity of the ith measurement of reflection h and 〈I(h)〉 is the mean value of I(h, i) for all i measurements.