SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D_NOESY | 1 mM RNA | 100% D2O | 50MM KCL mM | 5.6 | ambient | 311 | Bruker Ascend800 800 |
| 2 | 1H-13C_HMQC | 1 mM [U-13C] RNA | 100% D2O | 50MM KCL mM | 5.6 | ambient | 311 | Bruker UltraShield700Plus 700 |
| 3 | 2D_NOESY | 1 mM RNA | 10%D2O 90%H2O | 50MM KCL mM | 5.6 | ambient | 278 | Bruker Ascend800 800 |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | Ascend800 | 800 |
| 2 | Bruker | UltraShield700Plus | 700 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | First round of structure calculation was conducted with distance and dihedral angle restraints only. Second round was performed with electrostatics using both high temperature annealing and low temperature annealing. | X-PLOR NIH |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | 10 structures for lowest energy |
| Conformers Calculated Total Number | 100 |
| Conformers Submitted Total Number | 10 |
| Representative Model | 1 (lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 4 | processing | NMRDraw | Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax | |
| 1 | chemical shift assignment | NMRViewJ | Bruce A. Johnson | |
| 2 | structure calculation | CYANA | Guntert, Mumenthaler and Wuthrich | |
| 3 | refinement | X-PLOR NIH | 3.1 | Schwieters, Kuszewski, Tjandra and Clore |
