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Structure of the RNA signal essential for translational frameshifting in HIV-1
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D NOESY 1mM RNA, 10mM Na phosphate buffer pH=6.4, 90% H2O, 10% D2O 90% H2O/10% D2O 10mM Na phosphate 6.4 ambient 283 2 2D TOCSY, DQF-COSY, HP COSY 1mM RNA, 10mM Na phosphate buffer pH=6.4 100% D2O 10mM Na phosphate 6.4 ambient 303 3 3D-HCCH-TOCSY, HSQC, 3D HCP 1mM RNA 15N, 13C, 10mM Na phosphate buffer pH=6.4 100% D2O 10mM Na phosphate 6.4 ambient 303
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DRX 800 2 Bruker DRX 600 3 Varian INOVA 500
NMR Refinement Method Details Software simulated annealing XwinNMR
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 23 Conformers Submitted Total Number 20 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 processing XwinNMR 3.1 2 data analysis Gifa 4.4 Delsuc, M.A. 3 data analysis AURELIA 4 data analysis Sparky 3.110 5 refinement Discover