1XWU
Solution structure of ACAUAGA loop
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 0.5mM RNA; 20mM phosphate buffer NA, 50mM NaCl; 95% H2O, 5% D2O | 95% H2O/5% D2O | 70 mM | 6.5 | ambient | 283 | |
2 | 2D NOESY | 0.5mM RNA; 20mM phosphate buffer NA, 50mM NaCl; 100% D2O | 100% D2O | 70 mM | 6.5 | ambient | 283 | |
3 | 2D TOCSY | 0.5mM RNA; 20mM phosphate buffer NA, 50mM NaCl; 100% D2O | 100% D2O | 70 mM | 6.5 | ambient | 283 | |
4 | DQF-COSY | 0.5mM RNA; 20mM phosphate buffer NA, 50mM NaCl; 100% D2O | 100% D2O | 70 mM | 6.5 | ambient | 283 | |
5 | HP-COSY | 0.5mM RNA; 20mM phosphate buffer NA, 50mM NaCl; 100% D2O | 100% D2O | 70 mM | 6.5 | ambient | 283 | |
6 | HCP | 1mM RNA U-15N,13C; 20mM phosphate buffer NA, 50mM NaCl; 100% D2O | 100% D2O | 70 mM | 6.5 | ambient | 283 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DRX | 500 |
2 | Bruker | DRX | 600 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing | The structure is based on a total of 292 restraints, 228 are NOE-derived distance constraints, 46 dihedral angle restraints, 13 distance restraints from hydrogen bonds, 5 base planarity restraints. | XwinNMR |
NMR Ensemble Information | |
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Conformer Selection Criteria | |
Conformers Calculated Total Number | |
Conformers Submitted Total Number | 1 |
Representative Model | (minimized average structure) |
Additional NMR Experimental Information | |
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Details | The structure was determined using triple-resonance NMR spectroscopy. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | collection | XwinNMR | 2.6 | |
2 | processing | XwinNMR | 2.6 | |
3 | data analysis | Felix | 97.0 | |
4 | structure solution | Discover | 97.0 | |
5 | refinement | Discover | 97.0 |