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Solution Structures of a DNA Dodecamer Duplex
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D NOESY 1.5 mM DNA, 100 mM NaCl, 5 mM phosphate buffer, pH 7.0 100% D2O 100mM NaCl, 5mM NaPi 7.0 1 atm 298 2 2D TOCSY 1.5 mM DNA, 100 mM NaCl, 5 mM phosphate buffer, pH 7.0 100% D2O 100mM NaCl, 5mM NaPi 7.0 1 atm 298 3 DQF-COSY 1.5 mM DNA, 100 mM NaCl, 5 mM phosphate buffer, pH 7.0 100% D2O 100mM NaCl, 5mM NaPi 7.0 1 atm 298 4 2D NOESY 1.5 mM DNA, 100 mM NaCl, 5 mM phosphate buffer, pH 7.0, 95% H2O, 5% D2O 95% H2O/5% D2O 100mM NaCl, 5mM NaPi 7.0 1 atm 275 5 2D 1H 31P HETCOR 1.5 mM DNA, 100 mM NaCl, 5 mM phosphate buffer, pH 7.0 100% D2O 100mM NaCl, 5mM NaPi 7.0 1 atm 298
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian INOVA 600 2 Varian INOVA 800
NMR Refinement Method Details Software simulated annealing CNS
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 20 Conformers Submitted Total Number 15 Representative Model 1 (minimized average structure)
Additional NMR Experimental Information Details This structure was determined using standard 2D homonuclear techniques.
Computation: NMR Software # Classification Version Software Name Author 1 structure solution CNS 1.1 Brunger 2 refinement CNS 1.1 Brunger