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NMR Solution Structure of the 2:1 Coptisine-KRAS-G4 Complex
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H NOESY 1.50 mM KRAS_Pu24m1_COP 90% H2O/10% D2O 50 mM 7.0 1 atm 298 Bruker AVANCE III 600 2 2D 1H-1H NOESY 1.50 mM KRAS_Pu24m1_COP 90% H2O/10% D2O 50 mM 7.0 1 atm 308 Bruker AVANCE III 600 3 2D DQF-COSY 1.50 mM KRAS_Pu24m1_COP 90% H2O/10% D2O 50 mM 7.0 1 atm 298 Bruker AVANCE III 600 4 2D DQF-COSY 1.50 mM KRAS_Pu24m1_COP 90% H2O/10% D2O 50 mM 7.0 1 atm 308 Bruker AVANCE III 600 5 2D 1H-13C HSQC 1.50 mM KRAS_Pu24m1_COP 90% H2O/10% D2O 50 mM 7.0 1 atm 298 Bruker AVANCE III 600 6 2D 1H-13C HSQC 1.50 mM KRAS_Pu24m1_COP 90% H2O/10% D2O 50 mM 7.0 1 atm 308 Bruker AVANCE III 600
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE III 600
NMR Refinement Method Details Software molecular dynamics Amber
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 collection TopSpin Bruker Biospin 2 chemical shift assignment NMRFAM-SPARKY Woonghee Lee 3 structure calculation X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 4 refinement Amber Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman