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NMR solution structure of VEGF G-quadruplex bound a non-planar cyclometalated-carbene platinum(II) complex
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H NOESY 1.0 mM VEGF G-quadruplex DNA, 1.0 mM LLPtCl, 75 mM potassium chloride, 25 mM potassium phosphate 90% H2O/10% D2O 100 mM 7.0 1 atm 298 Bruker AVANCE III 700 2 2D 1H-1H NOESY 1.0 mM VEGF G-quadruplex DNA, 1.0 mM LLPtCl, 75 mM potassium chloride, 25 mM potassium phosphate 90% H2O/10% D2O 100 mM 7.0 1 atm 278 Bruker AVANCE III 600 3 2D 1H-1H TOCSY 1.0 mM VEGF G-quadruplex DNA, 1.0 mM LLPtCl, 75 mM potassium chloride, 25 mM potassium phosphate 90% H2O/10% D2O 100 mM 7.0 1 atm 298 Bruker AVANCE III 700 4 2D 1H-1H TOCSY 1.0 mM VEGF G-quadruplex DNA, 1.0 mM LLPtCl, 75 mM potassium chloride, 25 mM potassium phosphate 90% H2O/10% D2O 100 mM 7.0 1 atm 278 Bruker AVANCE III 600 5 2D 1H-1H COSY 1.0 mM VEGF G-quadruplex DNA, 1.0 mM LLPtCl, 75 mM potassium chloride, 25 mM potassium phosphate 90% H2O/10% D2O 100 mM 7.0 1 atm 298 Bruker AVANCE III 700
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE III 600 2 Bruker AVANCE III 700
NMR Refinement Method Details Software DGSA-distance geometry simulated annealing X-PLOR NIH molecular dynamics Discovery Studio
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 100 Conformers Submitted Total Number 15 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 refinement X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 2 structure calculation Discovery Studio BIOVIA 3 chemical shift assignment Sparky Goddard 4 peak picking Sparky Goddard