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Unique structural features of interconverting monomeric and dimeric G-quadruplexes adopted by a sequence from intron of N-myc gene
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H NOESY 0.4-6.6 mM DNA (5'-D(*TP*AP*GP*GP*GP*CP*GP*GP*GP*AP*GP*GP*GP*AP*GP*GP*GP*AP*A)-3') 90% H2O/10% D2O 120 6.5 ambient 298.15 2 2D 1H-15N HSQC 0.4-6.6 mM DNA (5'-D(*TP*AP*GP*GP*GP*CP*GP*GP*GP*AP*GP*GP*GP*AP*GP*GP*GP*AP*A)-3') 90% H2O/10% D2O 120 6.5 ambient 298.15 3 2D 31P-1H COSY 0.4-6.6 mM DNA (5'-D(*TP*AP*GP*GP*GP*CP*GP*GP*GP*AP*GP*GP*GP*AP*GP*GP*GP*AP*A)-3') 90% H2O/10% D2O 120 6.5 ambient 298.15 4 2D 1H-1H DQF COSY 0.4-6.6 mM DNA (5'-D(*TP*AP*GP*GP*GP*CP*GP*GP*GP*AP*GP*GP*GP*AP*GP*GP*GP*AP*A)-3') 90% H2O/10% D2O 120 6.5 ambient 298.15 5 2D 1H-15N HMQC 0.4-6.6 mM DNA (5'-D(*TP*AP*GP*GP*GP*CP*GP*GP*GP*AP*GP*GP*GP*AP*GP*GP*GP*AP*A)-3') 90% H2O/10% D2O 120 6.5 ambient 298.15
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian VNMRS 800 2 Varian VNMRS 600
NMR Refinement Method Details Software simulated annealing Amber
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 50 Conformers Submitted Total Number 10 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 structure solution Amber 9 Case, Darden, Cheatham, III, Simmerling, Wang, Duke, Luo, and Kollm 2 refinement Amber Case, Darden, Cheatham, III, Simmerling, Wang, Duke, Luo, and Kollm