TABLE 1.
Data and refinement statistics
| GUAAa | |
|---|---|
| aThe numbers in parentheses are statistics for data between 1.42 Å and 1.40 Å, except for fold redundancy. | |
| bRmerge = ∑hklΣ|Ii − 〈I〉|/∑hkl∑/i for all data with I/σI > −3. | |
| cR-factor = ∑hkl | |Fobs| − k|Fcalc| | /∑hkl |Fobs| | |
| Resolution range (Å) | 40–1.4 |
| Space group | C2 |
| Unit cell | |
| a, b, c (Å) | 57.97, 22.53, 58.47 |
| β (°) | 101.72 |
| Unique reflections (fold redundancy) | 14,372 (6.3) |
| Completeness (%) | 97.9 (80.0) |
| I/σI | 21.8 (2.3) |
| Rmergeb | 0.072 (0.323) |
| R-factorc | 0.164 (0.278) |
| Rfreec | 0.207 (0.458) |
| % of data used to calculate Rfree | 10 |
| RNA atoms | 582 |
| Solvent molecules | 109 |
| R.m.s deviation from ideality | |
| bonds (Å) | 0.01 |
| angles (Å) | 0.028 |
| Average B-factors (Å2) | |
| RNA | 11.8 |
| solvent | 27.9 |
