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NMR structure of KRAS22RT G-quadruplex forming within KRAS promoter region at physological temperature
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H NOESY 2 mM KRAS22RT 90% H2O/10% D2O 50 KCl; 10KPi mM 6.66 1 atm 310 Bruker AVANCE III 950 2 2D 1H-13C HSQC 0.5 mM [U-99% 13C; U-99% 15N] KRAS22RT 90% H2O/10% D2O 50 KCl; 10KPi mM 6.66 1 atm 310 Bruker AVANCE III 800 3 2D 1H-15N HSQC 0.5 mM [U-99% 13C; U-99% 15N] KRAS22RT 90% H2O/10% D2O 50 KCl; 10KPi mM 6.66 1 atm 310 Bruker AVANCE III 950
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE III 950 2 Bruker AVANCE III 800 3 Bruker AVANCE III 700
NMR Refinement Method Details Software molecular dynamics Amber
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 750 Conformers Submitted Total Number 10 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 refinement Amber Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman 2 structure calculation ARIA Linge, O'Donoghue and Nilges 3 chemical shift assignment Sparky Goddard 4 processing TopSpin Bruker Biospin 5 peak picking CcpNmr Analysis CCPN