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NMR STRUCTURE OF A DNA THREE-WAY JUNCTION
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D NOESY 2 mM DNA, 0.5mM EDTA, 100 mM Sodium phosphate, 10 mM MgCl2, 100mM NaCl 100% D2O 100 mM 6.8 1 atm 301 2 3D NOESY-NOESY 2 mM DNA, 0.5mM EDTA, 100 mM Sodium phosphate, 10 mM MgCl2, 100mM NaCl 100% D2O 100 mM 6.8 1 atm 301
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian UNITYPLUS 600 2 Varian UNITYPLUS 750
NMR Refinement Method Details Software Complete relaxation matrix Molecular Dynamics Particle Mesh Ewald Methods were used. MORASS
NMR Ensemble Information Conformer Selection Criteria Conformers Calculated Total Number Conformers Submitted Total Number 1 Representative Model 1 (minimized average structure)
Computation: NMR Software # Classification Version Software Name Author 1 iterative matrix relaxation MORASS 2.5 Meadows, R., Post, C.B., Luxon, B.A., & Gorenstein, D.G.