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parallel-stranded G-quadruplex in DNA poly-G stretches
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H TOCSY 0.1-2 mM DNA (5'-D(*TP*TP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*T)-3') 90% H2O/10% D2O 10 7.0 ambient 310 2 2D 1H-1H NOESY 0.1-2 mM DNA (5'-D(*TP*TP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*T)-3') 90% H2O/10% D2O 10 7.0 ambient 310 3 2D 1H-1H JRNOESY 0.1-2 mM DNA (5'-D(*TP*TP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*T)-3') 90% H2O/10% D2O 10 7.0 ambient 310
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AMX 700 2 Bruker AMX 600
NMR Refinement Method Details Software DGSA-distance geometry simulated annealing, 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 geometry optimization X-PLOR NIH 2.34 Schwieters, Kuszewski, Tjandra and Clore 2 refinement X-PLOR NIH 2.34 Schwieters, Kuszewski, Tjandra and Clore 3 structure solution X-PLOR NIH 2.34 Schwieters, Kuszewski, Tjandra and Clore