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Structure of a G-quadruplex containing a single LNA modification
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H NOESY 1.5 mM DNA (5'-D(*TP*TP*GP*LGP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*A)-3'), 20 uM DSS, 20 mM potassium phosphate 90% H2O/10% D2O 30 7 ambient 298 2 2D 1H-1H NOESY 1.5 mM DNA (5'-D(*TP*TP*GP*LGP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*A)-3'), 20 uM DSS, 20 mM potassium phosphate 100% D2O 30 7 ambient 298 3 2D 1H-13C HSQC 1.5 mM DNA (5'-D(*TP*TP*GP*LGP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*A)-3'), 20 uM DSS, 20 mM potassium phosphate 90% H2O/10% D2O 30 7 ambient 298 4 2D 1H-1H TOCSY 1.5 mM DNA (5'-D(*TP*TP*GP*LGP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*A)-3'), 20 uM DSS, 20 mM potassium phosphate 100% D2O 30 7 ambient 298 5 2D 1H-1H COSY 1.5 mM DNA (5'-D(*TP*TP*GP*LGP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*TP*TP*AP*GP*GP*GP*A)-3'), 20 uM DSS, 20 mM potassium phosphate 100% D2O 30 7 ambient 298
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE 600 2 Bruker AVANCE 700
NMR Refinement Method Details Software DGSA-distance geometry 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 structure solution X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 2 refinement X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore