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NMR solution and X-ray crystal structures of a DNA containing both right-and left-handed parallel-stranded G-quadruplexes
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H NOESY 1.5 mM TBA-TT-Block2, 70 mM potassium chloride, 20 mM potassium phosphate, 20 uM DSS 90% H2O/10% D2O 90 mM 7 1 atm 298 Bruker AVANCE III 800 2 2D 1H-1H NOESY 1.5 mM TBA-TT-Block2, 70 mM potassium chloride, 20 mM potassium phosphate, 20 uM DSS 90% H2O/10% D2O 90 mM 7 1 atm 298 Bruker AVANCE III 800 3 2D 1H-13C HSQC aliphatic 1.5 mM TBA-TT-Block2, 70 mM potassium chloride, 20 mM potassium phosphate, 20 uM DSS 90% H2O/10% D2O 90 mM 7 1 atm 298 Bruker AVANCE II 600 4 2D 1H-13C HSQC aromatic 1.5 mM TBA-TT-Block2, 70 mM potassium chloride, 20 mM potassium phosphate, 20 uM DSS 90% H2O/10% D2O 90 mM 7 1 atm 298 Bruker AVANCE II 600 5 2D 1H-1H TOCSY 1.5 mM TBA-TT-Block2, 70 mM potassium chloride, 20 mM potassium phosphate, 20 uM DSS 90% H2O/10% D2O 90 mM 7 1 atm 298 Bruker AVANCE II 600
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE II 600 2 Bruker AVANCE III 800
NMR Refinement Method Details Software simulated annealing X-PLOR NIH
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 100 Conformers Submitted Total Number 10 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 chemical shift assignment Sparky Goddard 2 collection TopSpin Bruker Biospin 3 peak picking Sparky Goddard 4 processing TopSpin Bruker Biospin 5 refinement X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 6 structure calculation X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore