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Solution structure of a fully modified 2'-F/2'-OMe siRNA construct
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D DQF-COSY 2 mM RNA-1, 2 mM RNA-2 100% D2O 20 6.8 ambient 25 2 2D 1H-1H NOESY 2 mM RNA-1, 2 mM RNA-2 100% D2O 20 6.8 ambient 25 3 2D 1H-1H NOESY 2 mM RNA-1, 2 mM RNA-2 95% H2O/5% D2O 20 6.8 ambient 25 4 2D 1H-1H NOESY 2 mM RNA-1, 2 mM RNA-2 100% D2O 20 6.8 ambient 5 5 2D 1H-1H NOESY 2 mM RNA-1, 2 mM RNA-2 95% H2O/5% D2O 20 6.8 ambient 5 6 2D HP-COSY 2 mM RNA-1, 2 mM RNA-2 100% D2O 20 6.8 ambient 25 7 2D 1H-1H NOESY 2 mM RNA-1, 2 mM RNA-2 100% D2O 20 6.8 ambient 25
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian Uniform NMR System 800 2 Varian Uniform NMR System 600
NMR Refinement Method Details Software simulated annealing 100 ps of NMR restrained simulated annealing calculations using a generalized Born implicit solvation model. Sparky
NMR Ensemble Information Conformer Selection Criteria structures with the 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 1 chemical shift assignment Sparky 3.115 Goddard 2 collection VnmrJ 2.2C Varian 3 structure solution Amber 9 Case, Darden, Cheatham, III, Simmerling, Wang, Duke, Luo, ... and Kollm 4 refinement Amber 9 Case, Darden, Cheatham, III, Simmerling, Wang, Duke, Luo, ... and Kollm