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Solution NMR structure of the d(GGGTTTTGGGTGGGTTTTGGG) quadruplex in sodium conditions
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H TOCSY 2 mM 5'-D(*GP*GP*GP*TP*TP*TP*TP*GP*GP*GP*TP*GP*GP*GP*TP*TP*TP*TP*GP*GP*G)-3', 20 mM sodium phosphate 100% D2O 20 7.8 ambient 293 2 2D 1H-1H COSY 2 mM 5'-D(*GP*GP*GP*TP*TP*TP*TP*GP*GP*GP*TP*GP*GP*GP*TP*TP*TP*TP*GP*GP*G)-3', 20 mM sodium phosphate 100% D2O 20 7.8 ambient 293 3 2D 1H-1H NOESY 2 mM 5'-D(*GP*GP*GP*TP*TP*TP*TP*GP*GP*GP*TP*GP*GP*GP*TP*TP*TP*TP*GP*GP*G)-3', 20 mM sodium phosphate 100% D2O 20 7.8 ambient 293 4 2D 1H-1H NOESY 2 mM 5'-D(*GP*GP*GP*TP*TP*TP*TP*GP*GP*GP*TP*GP*GP*GP*TP*TP*TP*TP*GP*GP*G)-3', 20 mM sodium phosphate 93% H2O/7% D2O 20 7.8 ambient 278 5 2D 1H-31P HSQC 2 mM 5'-D(*GP*GP*GP*TP*TP*TP*TP*GP*GP*GP*TP*GP*GP*GP*TP*TP*TP*TP*GP*GP*G)-3', 20 mM sodium phosphate 100% D2O 20 7.8 ambient 293
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian VNMRS 500 500
NMR Refinement Method Details Software DGSA-distance geometry simulated annealing, molecular dynamics Felix
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 88 Conformers Submitted Total Number 10 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 processing Felix Accelrys Software Inc. 2 collection VnmrJ Varian 3 chemical shift assignment Sparky Goddard 4 data analysis Sparky Goddard 5 structure solution X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 6 refinement X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 7 data analysis MOLMOL Koradi, Billeter and Wuthrich