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Structural characterization of two b-KTx scorpion toxins. One of them blocks human KCNQ1 potassium channels
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H NOESY 1.2 mM TcoKIK 95% H2O/5% D2O 0 6.8 1 atm 298 Bruker AVANCE II 700 2 2D 1H-1H COSY 1.2 mM TcoKIK 95% H2O/5% D2O 0 6.8 1 atm 298 Bruker AVANCE II 700 3 2D 1H-1H TOCSY 1.2 mM TcoKIK 95% H2O/5% D2O 0 6.8 1 atm 298 Bruker AVANCE II 700
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE II 700
NMR Refinement Method Details Software molecular dynamics Amber
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 200 Conformers Submitted Total Number 20 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 refinement Amber 16 Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman 2 structure calculation CYANA 2.1 Guntert, Mumenthaler and Wuthrich 3 chemical shift assignment CARA 1.5 Keller and Wuthrich 4 peak picking CARA 1.5 Keller and Wuthrich