SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | DQF-COSY | 1 mM hairpin | D2O | 7.0 | 1 atm | 288 | ||
| 2 | 2D-NOESY | 1 mM hairpin | D2O | 7.0 | 1 atm | 288 | ||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | DRX | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | Starting A- and B-type stem hairpin structures with randomly organized loops were refined by 14 ps restrained molecular dynamics (300-1000 K) with final enegry minimization | X-PLOR |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | all calculated structures submitted |
| Conformers Calculated Total Number | 10 |
| Conformers Submitted Total Number | 10 |
| Representative Model | 1 (the hairpin stem structure closest to the average) |
| Additional NMR Experimental Information | |
|---|---|
| Details | This structure was determined using standard 2D homo- and heteronuclear techniques: NOESY, DQF-COSY, TOCSY, H,C-HMQC and H,P-HetCOSY |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | refinement | X-PLOR | 3.843 | Brunger |
| 2 | data analysis | X-PLOR | Bruker | |
