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Structure of DNA G-quadruplex adopted by ALS and FTD related GGGGCC repeat with G21 to Br-G21 substitution
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 1H-1H_TOCSY 8%- 15, 8% 13 C N DNA 0.3-0.6 MM , 120 MM POTASSIUM CHLORIDE, 20 MM POTASSIUM PHOSPHATE, 90% H2O, 10% D2O 100% D2O 140 7.2 ambient 273 3 1H-1H_NOESY 0.5 mM dna, 120 mM potassium chloride, 20 mM potassium phosphate, 90% H2O, 10% D2O 90% H2O/10% D2O 140 7.2 ambient 273 4 1H_1H_DQF_COSY 8%- 15, 8% 13 C N DNA 0.3-0.6 MM , 120 MM POTASSIUM CHLORIDE, 20 MM POTASSIUM PHOSPHATE, 90% H2O, 10% D2O 100% D2O 140 7.2 ambient 273 5 1D_13C__HSQC 0.5 MM DNA, 120 MM POTASSIUM CHLORIDE, 20 MM POTASSIUM PHOSPHATE 100% D2O 140 7.2 ambient 298 6 1D_15N_HSQC 8%- 15 N DNA 0.3-0.6 MM , 120 MM POTASSIUM CHLORIDE, 20 MM POTASSIUM PHOSPHATE, 90% H2O, 10% D2O 90% H2O/10% D2O 140 7.2 ambient 273 7 1H-1H_NOESY 8%- 15, 8% 13 C N DNA 0.3-0.6 MM , 120 MM POTASSIUM CHLORIDE, 20 MM POTASSIUM PHOSPHATE, 90% H2O, 10% D2O 100% D2O 140 7.2 ambient 273
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian Uniform NMR System 600 2 Varian Uniform NMR System 800
NMR Refinement Method Details Software simulated annealing Amber
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 100 Conformers Submitted Total Number 10 Representative Model 1 (fewest violations)
Computation: NMR Software # Classification Version Software Name Author 1 structure solution Amber 14 Case, Darden, Cheatham, III, Simmerling, Wang, Duke, Luo, and Kollman 2 peak picking Sparky Goddard 3 refinement Amber 14 Case, Darden, Cheatham, III, Simmerling, Wang, Duke, Luo, and Kollman