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. 2012 Aug 30;68(Pt 9):1034–1039. doi: 10.1107/S1744309112032538

Table 1. Data-collection statistics.

Values in parentheses are for the highest resolution shell. Both data sets were collected from a single crystal on beamline BL14.1 of the BESSY II synchrotron (Helmholtz Zentrum Berlin, Germany).

Data set Se-SAD Native
Wavelength (Å) 0.97935 0.92526
Resolution range (Å) 48–3.40 (3.58–3.40) 46–3.25 (3.43–3.25)
Space group P6522 P6522
Unit-cell parameters (Å) a = b = 120.9, c = 114.6 a = b = 116.9, c = 117.4
Mosaicity (°) 0.157 0.161
Total No. of measured reflections 609714 (88480) 101880 (14797)
Unique reflections 7240 (1012) 7907 (1106)
Multiplicity 47.3 (47.4) 12.9 (13.4)
Mean I/σ(I) 25.0 (2.2) 19.2 (2.1)
Completeness (%) 100 (100) 99.9 (100)
R merge § (%) 25.5 (383.5) 10.0 (153.8)
R p.i.m. (%) 3.8 (56.3) 2.9 (43.0)
Optical resolution†† (Å) 2.56 2.44
Molecules per asymmetric unit 1 1
Matthews coefficient (Å3 Da−1) 4.72 4.52
Solvent content (%) 73.9 72.8

Friedel mates were treated as separate reflections.

Mosaicity values are as reported by XDS (Kabsch, 2010).

§

R merge = Inline graphic Inline graphic, where I i(hkl) is the intensity of the ith observation of the reflection with index hkl.

R p.i.m. = Inline graphic Inline graphic, where N is the number of observations of the reflection with index hkl (Weiss, 2001).

††

Optical resolution corresponds to the minimum distance of two peaks that are expected to be resolved in the electron-density map as calculated with SFCHECK (Vaguine et al., 1999).