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Solution NMR structure of the novel conotoxin im23a from Conus imperialis
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-15N HSQC 128 uM [U-15N] Conotoxin-1 95% H2O/5% D2O 5.6 ambient 293 2 2D 1H-13C HSQC 128 uM [U-15N] Conotoxin-1 95% H2O/5% D2O 5.6 ambient 293 3 2D 1H-1H TOCSY 128 uM [U-15N] Conotoxin-1 95% H2O/5% D2O 5.6 ambient 293 4 2D DQF-COSY 128 uM [U-15N] Conotoxin-1 95% H2O/5% D2O 5.6 ambient 293 5 2D 1H-1H NOESY 128 uM [U-15N] Conotoxin-1 95% H2O/5% D2O 5.6 ambient 293 6 3D 1H-15N NOESY 128 uM [U-15N] Conotoxin-1 95% H2O/5% D2O 5.6 ambient 293 7 2D 1H-1H TOCSY 128 uM Conotoxin-2 95% H2O/5% D2O 5.6 ambient 293 8 2D 1H-1H NOESY 128 uM Conotoxin-2 95% H2O/5% D2O 5.6 ambient 293
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DRX 600 2 Bruker AVANCE 800 3 Bruker AVANCE 500
NMR Refinement Method Details Software simulated annealing TopSpin
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 200 Conformers Submitted Total Number 20 Representative Model 1 (closest to the average)
Computation: NMR Software # Classification Version Software Name Author 1 collection TopSpin Bruker Biospin 2 data analysis TopSpin Bruker Biospin 3 chemical shift assignment XEASY Bartels et al. 4 processing XEASY Bartels et al. 5 peak picking XEASY Bartels et al. 6 structure solution X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 7 refinement X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore