TABLE 1:

Data collection and phasing.

	Anomalous	Native
Space group	P21	P21
Cell constants (Å or °)	a = 31.2 b = 110.8 c = 44.8 β = 101.6	a = 31.4 b = 111 c = 44.9 β = 101.3
Wavelength (Å)	1.25478	0.97926
Resolution range (Å)	50.00–1.80 (1.83–1.80)	50.00–1.89 (1.92–1.89)
Unique reflections	26,628 (1009)	23,899 (1116)
Multiplicity	6.2 (2.5)	4.5 (3.6)
Data completeness (%)	95.9 (71.6)	98.6 (95.3)
Rmerge (%)	11.8 (139)	7.4 (56.8)
Rpim (%)	4.8 (89)	4.0 (33)
CC1/2 (last resolution shell)	0.143	0.812
I/σ(I)	13.8 (0.5)	16.7 (2.4)
FOMa	0.2902	n/a
Anomalous signal	8.4%	n/a

Values in parentheses refer to the highest resolution shell.

^aFigure of merit for phasing is before density modification.