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. 2010 Aug 28;66(Pt 9):1096–1100. doi: 10.1107/S1744309110031106

Table 1. Data-collection statistics for GBS SrtC143–260 and GBS SrtA82–238 crystals.

Values in parentheses are for the last resolution shell.

  GBS SrtC143–260  
  Type I Type II Type III GBS SrtA82–238
No. of crystals 1 1 1 1
X-ray source In-house SER-CAT 22-ID SER-CAT 22-ID NE-CAT 24-ID
Wavelength (Å) 1.541 1.0 1.0 0.97918
Detector R-AXIS IV image plate MAR 300 MAR 300 ADSC 315 CCD
Crystal-to-detector distance (mm) 100 225 200 450
Rotation range per image (°) 1 0.5 0.5 1
Total rotation range (°) 360 360 360 193
Exposure time per image (s) 300 10 2 1
Resolution range (Å) 27.2–2.45 (2.5–2.45) 29.2–2.9 (2.95–2.90) 29.30–3.0 (3.1–3.0) 40–3.1 (3.2–3.10)
Space group C2 P212121 P3121 C2
Unit-cell parameters
a (Å) 78.6 69.1 70.9 237.7
b (Å) 46.9 73.4 70.9 167.7
c (Å) 66.6 127.3 195.7 97.5
 β (°) 115.0   120.0 93.5
Mosaicity (°) 0.3 0.3 0.6 0.37
Total No. of measured intensities 59427 (5927) 110877 (5375) 125451 (12302) 285320 (28495)
Unique reflections 8218 (811) 15115 (721) 22041 (2241) 68853 (6819)
Multiplicity 7.2 (7.0) 7.3 (7.3) 5.7 (5.6) 4.2 (4.3)
Mean I/σ(I) 33.5 (13.1) 57.5 (20.3) 11.3 (4.8) 16.4 (1.85)
Completeness (%) 100 (100) 100 (100) 99.9 (100) 99.7 (99.6)
χ2 0.98 (0.94) 2.76 (1.28) 0.98 (1.1) 1.66 (1.41)
Rmerge (%) 4.0 (12.5) 5.0 (12.1) 8.8 (24.8) 0.11 (84.1)
Overall B factor from Wilson plot (Å2) 51.1 62.7 95.2 79.7
No. of molecules in the asymmetric unit 1 2 2 18

R merge = Inline graphic Inline graphic, where Ii(hkl) are the intensities of symmetry-related reflections and 〈I(hkl)〉 is the average intensity over all observations.