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Analysis of the structural and molecular basis of voltage-sensitive sodium channel inhibition by the spider toxin, Huwentoxin-IV (-TRTX-Hh2a).
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-15N HSQC 2 mM entity, 20 mM sodium phosphate, 150 uM sodium azide, 100 uM [U-99% 2H] EDTA 90% H2O/10% D2O 6.7 ambient 298 2 2D 1H-1H TOCSY 2 mM entity, 20 mM sodium phosphate, 150 uM sodium azide, 100 uM [U-99% 2H] EDTA 90% H2O/10% D2O 6.7 ambient 298 3 2D 1H-1H NOESY 2 mM entity, 20 mM sodium phosphate, 150 uM sodium azide, 100 uM [U-99% 2H] EDTA 90% H2O/10% D2O 6.7 ambient 298 4 2D 1H-13C HSQC 2 mM entity, 20 mM sodium phosphate, 150 uM sodium azide, 100 uM [U-99% 2H] EDTA 90% H2O/10% D2O 6.7 ambient 298
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE 950
NMR Refinement Method Details Software simulated annealing CYANA
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 1000 Conformers Submitted Total Number 20 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 structure solution CYANA Guntert, Mumenthaler and Wuthrich 2 refinement CYANA Guntert, Mumenthaler and Wuthrich