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Solution structure of the S. Cerevisiae U6 intramolecular stem loop (ISL) RNA at pH 5.7
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D NOESY 0.8-1.2 mM RNA, 50 mM NaCl, pH 5.7 H2O 50 mM NaCl 5.7 Ambient 285 2 2D NOESY 0.8-1.2 mM RNA, 50 mM NaCl, pH 5.7 D2O 50 mM NaCl 5.7 Ambient 303 3 2D TOCSY 0.8-1.2 mM RNA, 50 mM NaCl, pH 5.7 D2O 50 mM NaCl 5.7 Ambient 303 4 1H-13C HSQC 0.8-1.2 mM RNA, 50 mM NaCl, pH 5.7 D2O 50 mM NaCl 5.7 Ambient 303
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DMX 750 2 Bruker DMX 600 3 Bruker DMX
NMR Refinement Method Details Software XPLOR-NIH 2.0.6. Method allowed for the incorporation of 29 residual dipolar couplings into the structure refinement process. CNS
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 100 Conformers Submitted Total Number 14 Representative Model 1 (lowest energy)
Additional NMR Experimental Information Details 13C, 15N Istopically labelled RNA
Computation: NMR Software # Classification Version Software Name Author 1 structure solution CNS 1.1 Brunger, A. et al. 2 refinement XPLORNIH 2.0.6. Clore, G.M. et. al. 3 collection X-PLOR 2.6 Bruker Biospin 4 data analysis Sparky 3.0 Goddard, T.D. et. al.