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The NMR Structures of (rGCUGAGGCU)2 and (rGCGGAUGCU)2
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D NOESY 0.75 mM RNA duplex, 80 mM NaCl, 0.5 mM Na2EDTA, 10 mM sodium phosphate, pH 5.5, 90% H2O, 10%D2O 90% H2O/10% D2O 5.5 283 2 DQF-COSY 0.75 mM RNA duplex, 80 mM NaCl, 0.5 mM Na2EDTA, 10 mM sodium phosphate, pH 5.5, 90% H2O, 10%D2O 90% H2O/10% D2O 5.5 283 3 NATURAL ABUNDANCE 13C-1H AND 15N-1H HSQC 0.75 mM RNA duplex, 80 mM NaCl, 0.5 mM Na2EDTA, 10 mM sodium phosphate, pH 5.5, 90% H2O, 10%D2O 90% H2O/10% D2O 5.5 283 4 31P-1H HETCOR 0.75 mM RNA duplex, 80 mM NaCl, 0.5 mM Na2EDTA, 10 mM sodium phosphate, pH 5.5, 90% H2O, 10%D2O 90% H2O/10% D2O 5.5 283
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian INOVA 600
NMR Refinement Method Details Software simulated annealing and restrained molecular dynamics CNS
NMR Ensemble Information Conformer Selection Criteria structures with the least restraint violations,structures with the lowest energy Conformers Calculated Total Number 30 Conformers Submitted Total Number 15 Representative Model 1 (lowest energy)
Additional NMR Experimental Information Details natural abundance 13C-1H HSQC, 15N-1H HSQC
Computation: NMR Software # Classification Version Software Name Author 1 structure solution CNS 1.1 Brunger et al. 2 processing NMRPipe Delaglio et al. 3 data analysis Sparky 3 Goddard et al. 4 refinement CNS 1.1 Brunger et al.