Table 1. Data-collection and data-processing statistics.
| Sheep haemoglobin | Goat haemoglobin | |
|---|---|---|
| X-ray source | Cu Kα | Cu Kα |
| Wavelength (Å) | 1.5417 | 1.5417 |
| Oscillation angle (°) | 1 | 1 |
| No. of frames collected | 120 | 180 |
| Exposure time (min) | 5 | 5 |
| Space group | P212121 | P1 |
| No. of crystals used | 1 | 1 |
| Crystal-to-detector distance (mm) | 100 | 100 |
| Unit-cell parameters (Å, °) | a = 60.231, b = 70.695, c = 131.479 | a = 53.103, b = 69.382, c = 96.098, α = 110.867, β = 91.133, γ = 109.437 |
| Resolution range (Å) | 30–2.7 | 30–2.7 |
| No. of reflections | 49414 | 57637 |
| No. of unique reflections | 13253 | 31524 |
| Rmerge (%) | 13.8 | 14 |
| Average redundancy | 3.1 | 1.8 |
| Completeness | 95.7 | 90.38 |
| 〈I/σ(I)〉 | 3..9 | 3.7 |