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Solution Structure of the Extended U6 ISL as Observed in the U2/U6 complex from Saccharomyces cerevisiae
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D NOESY 1mM extended U6 ISL RNA; 90% H2O; 10% D2O 90% H2O/10% D2O 6.9 283 2 2D NOESY 1mM extended U6 ISL RNA; 99.99% D2O 99.99% D2O 7.5 303 3 2D TOCSY 1mM extended U6 ISL RNA; 99.99% D2O 99.99% D2O 7.5 303 4 3D_13C-separated_NOESY 1mM 13C,15N labeled extended U6 ISL RNA; 99.99% D2O 99.99% D2O 7.5 303 5 3D [1H-13C-1H] HCCH-TOCSY 1mM 13C,15N labeled extended U6 ISL RNA; 99.99% D2O 99.99% D2O 7.5 303 6 3D [1H-13C-1H] HCCH -COSY 1mM 13C,15N labeled extended U6 ISL RNA; 99.99% D2O 99.99% D2O 7 2D [15N-1H] HNN-COSY 1mM 13C,15N labeled extended U6 ISL RNA; 90% H2O; 10% D2O 90% H2O/10% D2O 6.9 298 8 J-modulated [13C-1H] CT-HSQC 1mM 13C,15N labeled extended U6 ISL RNA; 17 mg/ml pf1 bacteriophage; 90% H2O; 10% D2O 90% H2O/10% D2O 7.5 303
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DMX 600 2 Bruker DMX 750 3 Varian INOVA 600 4 Varian INOVA 800
NMR Refinement Method Details Software simulated annealing, torsion angle dynamics, molecular dynamics, residual dipolar couplings, conformational database potentials 435 NOE distance constraints, 244 dihedral angle restraints, 66 hydrogen bond restraints, 77 residual dipolar couplings XwinNMR
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 processing XwinNMR 3.5 Bruker 2 processing VNMR 1.1 Varian 3 processing NMRPipe 97.027.12.56 Bax 4 data analysis Sparky 3.105 Goddard and Kneller 5 structure solution CNS 1.1 Brunger 6 structure solution XPLOR-NIH 2.9.7 Clore, Kuszewski, Schwieters, Tjandra 7 refinement XPLOR-NIH 2.9.7