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