1T4X
The first left-handed RNA structure of (CGCGCG)2, Z-RNA, NMR, 12 structures, determined in high salt
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | RNA (2-3 mM) in buffer containing 150 mM NaCl, 10 mM sodium phosphate pH 6.5, 0.1 mM EDTA and 6M NaClO4 | D2O (99.98%) | 6M NaClO4 | 6.5 | ambient | 303 | |
2 | DQF-COSY | RNA (2-3 mM) in buffer containing 150 mM NaCl, 10 mM sodium phosphate pH 6.5, 0.1 mM EDTA and 6M NaClO4 | D2O (99.98%) | 6M NaClO4 | 6.5 | ambient | 303 | |
3 | 31P-1H HETCOR | RNA (2-3 mM) in buffer containing 150 mM NaCl, 10 mM sodium phosphate pH 6.5, 0.1 mM EDTA and 6M NaClO4 | D2O (99.98%) | 6M NaClO4 | 6.5 | ambient | 303 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | UNITYPLUS | 500 |
NMR Refinement | ||
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Method | Details | Software |
molecular dynamics with NMR restraints | NMR refinement using X-PLOR, NOE intra-residue distances 120, NOE inter-residue distances 112, Dihedral angle restraints 100, Watson-Crick pair distances 18, Planarity of base pairs - 6. Total restraints/residue: 30 | VNMR |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the least restraint violations,structures with the lowest energy |
Conformers Calculated Total Number | 50 |
Conformers Submitted Total Number | 12 |
Representative Model | 1 (lowest energy) |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | collection | VNMR | 6.1B | Varian |
2 | data analysis | Felix | 2000 | Accelrys |
3 | structure solution | CYANA | 1.0 | Guentert |
4 | refinement | X-PLOR | 3.851 | Brunger |