Table 2. Crystallographic data collection and refinement statistics.

	M1-C SAD
Data collection
Space group	C121
Cell dimensions
a, b, c (Å)	66.398 26.841 77.224
Α, β, γ (°)	90.00 108.40 90.00
Wavelength	0.9791
Resolution (Å)	31.5–1.5 (1.58–1.5)
Rsym	0.063 (0.527)
I/σI	12.1 (2.4)
Completeness (%)	99.3 (99.3)
Multiplicity	3.7 (3.8)
Refinement
Resolution (Å)	1.5
No. Reflections Test set reflections	20868 1074
Rwork/Rfree	18.8/21.9
No. atoms
Protein	1235
Ligand/ion	2 Mg2+
Water	186
B-factors
Protein	26.4
Ligand/ion	30
Water	36.1
R.m.s deviations
Bond lengths (Å)	0.006
Bond angles (°)	0.969