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Structure Determination for spider toxin, U4-agatoxin-Ao1a
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-15N HSQC 300 uM [U-99% 13C; U-99% 15N] SF23, 20 mM MES, 10 uM DSS, 5% sodium azide 95% H2O/5% D2O 6.0 ambient 298 2 3D CBCA(CO)NH 300 uM [U-99% 13C; U-99% 15N] SF23, 20 mM MES, 10 uM DSS, 5% sodium azide 95% H2O/5% D2O 6.0 ambient 298 3 3D HNCACB 300 uM [U-99% 13C; U-99% 15N] SF23, 20 mM MES, 10 uM DSS, 5% sodium azide 95% H2O/5% D2O 6.0 ambient 298 4 2D 1H-13C HSQC 300 uM [U-99% 13C; U-99% 15N] SF23, 20 mM MES, 10 uM DSS, 5% sodium azide 95% H2O/5% D2O 6.0 ambient 298 5 3D 1H-15N NOESY 300 uM [U-99% 13C; U-99% 15N] SF23, 20 mM MES, 10 uM DSS, 5% sodium azide 95% H2O/5% D2O 6.0 ambient 298 6 3D 1H-13C NOESY aromatic 300 uM [U-99% 13C; U-99% 15N] SF23, 20 mM MES, 10 uM DSS, 5% sodium azide 95% H2O/5% D2O 6.0 ambient 298 7 3D 1H-13C NOESY aliphatic 300 uM [U-99% 13C; U-99% 15N] SF23, 20 mM MES, 10 uM DSS, 5% sodium azide 95% H2O/5% D2O 6.0 ambient 298 8 3D HNCO 300 uM [U-99% 13C; U-99% 15N] SF23, 20 mM MES, 10 uM DSS, 5% sodium azide 95% H2O/5% D2O 6.0 ambient 298 9 4D HCC(CO)NH-TOCSY 300 uM [U-99% 13C; U-99% 15N] SF23, 20 mM MES, 10 uM DSS, 5% sodium azide 95% H2O/5% D2O 6.0 ambient 298
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE II 900
NMR Refinement Method Details Software torsion angle dynamics TopSpin
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy and best stereochemical properties Conformers Calculated Total Number 200 Conformers Submitted Total Number 20 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 collection TopSpin Bruker Biospin 2 processing TopSpin Bruker Biospin 3 chemical shift assignment Sparky Goddard 4 obtain dihedral angle restraints TALOS talos+ Cornilescu, Delaglio and Bax 5 structure calculation CYANA Guntert, Mumenthaler and Wuthrich 6 processing nus data Rowland_NMR_Toolkit Hoch JC 7 refinement CYANA Guntert, Mumenthaler and Wuthrich