Table 1.
X-ray data collection and refinement statistics.
| X-ray data | Refinement | ||
|---|---|---|---|
| Space group | P65 | Resolution (Å) | 51.45–3.00 |
| Cell dimensions | Reflections (work/free) | 13678/716 | |
| a = b, c (Å) | 118.8 89.5 | Rwork/Rfree | 22.0/23.9 |
| α = β, γ (°) | 90 120 | Number of atoms | 3114 |
| Resolution (Å)a | 67.54–3.0 (3.18–3.0) | Protein | 2151 |
| best in h k plane | 3.14 | DNA | 943 |
| best along l axis | 3.00 | [4Fe-4S] cluster | 16 |
| Rsym (%) | 5.9 (194.5) | Water | 4 |
| Mean(I/σ(I)) | 12.6 (1.0) | Average B factors (Å2) | |
| CC(1/2) | 0.999 (0.516) | Protein | 134.2 |
| Completeness (%) | 99.8 (100.0) | DNA | 181.4 |
| Redundancy | 6.3 (6.7) | [4Fe-4S] cluster | 110.7 |
| Water | 118.1 | ||
| R.m.s. deviations | |||
| Bond lengths (Å) | 0.003 | ||
| Bond angles (°) | 0.70 |
aValues within parentheses denote the highest resolution shell.