NMR structure and Mg2+ binding of an RNA segment that underlies the L7/L12 stalk in the E.coli 50S ribosomal subunit.
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | NOESY | RNA | D2O | 0.1 | 6.5 | 1 atm | 298 | |
| 2 | TOCSY | RNA | H2O/D2O | 0.1 | 6.5 | 1 atm | 298 | |
| 3 | P-HSQC | RNA | H2O/D2O | 0.1 | 6.5 | 1 atm | 298 | |
| 4 | 15N-HSQC | RNA | H2O/D2O | 0.1 | 6.5 | 1 atm | 298 | |
| 5 | 2D NOESY | RNA | H2O/D2O | 0.1 | 6.5 | 1 atm | 276 | |
| 6 | 15N-1H HSQC | RNA | H2O/D2O | 0.1 | 6.5 | 1 atm | 285 | |
| 7 | 13C-1H HSQC | RNA | H2O/D2O | 0.1 | 6.5 | 1 atm | 285 | |
| 8 | HNN-COSY | RNA | H2O/D2O | 0.1 | 6.5 | 1 atm | 285 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | 600 | |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| distance geometry simulated annealing | CNS | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | Lowest energy, fewest VDW violations |
| Conformers Calculated Total Number | |
| Conformers Submitted Total Number | 9 |
| Representative Model | 1 (lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | refinement | CNS | Brunger, et. al | |
| 2 | structure solution | CNS | Brunger, et. al | |
