SOLUTION NMR

NMR Experiment
Experiment Type Sample Contents Ionic Strength Solvent pH Pressure Temprature (K)
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 6M NaClO4 D2O (99.98%) 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 6M NaClO4 D2O (99.98%) 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 6M NaClO4 D2O (99.98%) 6.5 ambient 303
NMR Spectrometer Information
Spectrometer Manufacturer Model Field Strength
1 Varian UNITYPLUS 500
NMR Refinement
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 1
NMR Ensemble Information
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
# Classification Version Software Name Author
1 collection 6.1B VNMR Varian
2 data analysis 2000 Felix Accelrys
3 structure solution 1.0 CYANA Guentert
4 refinement 3.851 X-PLOR Brunger