Table 7. Merging statistics for four 360° data sets from cubic insulin. Each data set was recorded with a low transmission to reduce the impact of radiation damage.
A fixed resolution limit of 1.4 Å was used for side-by-side comparisons.
| Crystal (×360°) | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| Crystal parameters | ||||
| Space group | I213 | I213 | I213 | I213 |
| Unit-cell parameters (Å) | a = b = c = 78.12 | a = b = c = 78.07 | a = b = c = 78.11 | a = b = c = 78.04 |
| Data statistics | ||||
| Resolution range (Å) | 55.24–1.40 (1.42–1.40) | 39.03–1.40 (1.42–1.40) | 39.05–1.40 (1.42–1.40) | 39.02–1.40 (1.42–1.40) |
| No. of unique reflections | 15789 (777) | 15748 (767) | 15788 (777) | 15740 (787) |
| Multiplicity | 37.5 (32.2) | 37.6 (32.4) | 37.6 (31.9) | 37.6 (32.4) |
| R merge | 0.053 (0.834) | 0.055 (0.782) | 0.055 (0.855) | 0.061 (0.782) |
| R meas | 0.054 (0.847) | 0.056 (0.794) | 0.056 (0.869) | 0.062 (0.794) |
| R p.i.m. | 0.009 (0.149) | 0.009 (0.139) | 0.009 (0.153) | 0.010 (0.139) |
| Completeness (%) | 100.0 (100.0) | 100.0 (100.0) | 100.0 (100.0) | 100.0 (100.0) |
| 〈I/σ(I)〉 | 39.3 (4.2) | 38.3 (4.7) | 37.0 (4.1) | 35.6 (4.7) |
| CC1/2 | 0.999 (0.943) | 1.000 (0.943) | 0.999 (0.938) | 0.999 (0.939) |