SOLUTION NMR

NMR Experiment
Experiment Type Sample Contents Ionic Strength Solvent pH Pressure Temprature (K)
1 3D_15N-separated_TOCSY 2.1 mM alpha-Bungarotoxin/alpha18mer complex, alpha18mer is 15N labeled, 50 mM perdeuterated potassium acetate buffer (pH 4.0) with 5% D2O and 0.05% sodium azide ? 95% H2O/5% D2O 4.0 ambient 308
2 3D HNHA 2.1 mM alpha-Bungarotoxin/alpha18mer complex, alpha18mer is 15N labeled, 50 mM perdeuterated potassium acetate buffer (pH 4.0) with 5% D2O and 0.05% sodium azide ? 95% H2O/5% D2O 4.0 ambient 308
3 3D_15N-separated_NOESY 2.1 mM alpha-Bungarotoxin/alpha18mer complex, alpha18mer is 15N labeled, 50 mM perdeuterated potassium acetate buffer (pH 4.0) with 5% D2O and 0.05% sodium azide ? 95% H2O/5% D2O 4.0 ambient 308
4 2D_TOCSY 2.1 mM alpha-Bungarotoxin/alpha18mer complex, alpha18mer is 15N labeled, 50 mM perdeuterated potassium acetate buffer (pH 4.0) with 5% D2O and 0.05% sodium azide ? 95% H2O/5% D2O 4.0 ambient 308
5 2D_NOESY 2.1 mM alpha-Bungarotoxin/alpha18mer complex, alpha18mer is 15N labeled, 50 mM perdeuterated potassium acetate buffer (pH 4.0) with 5% D2O and 0.05% sodium azide ? 95% H2O/5% D2O 4.0 ambient 308
6 2D 1H-15N HSQC 2.1 mM alpha-Bungarotoxin/alpha18mer complex, alpha18mer is 15N labeled, 50 mM perdeuterated potassium acetate buffer (pH 4.0) with 5% D2O and 0.05% sodium azide ? 95% H2O/5% D2O 4.0 ambient 308
NMR Spectrometer Information
Spectrometer Manufacturer Model Field Strength
1 Bruker AVANCE 600
NMR Refinement
Method Details Software
distance geometry and simulated annealing ? 1
NMR Ensemble Information
Conformer Selection Criteria The submitted conformer models are the 20 structures with the lowest energy from 120 acceptable structures which were from 300 total calculated structures and had no restraint violations. The best representative conformer is the lowest potential energy structure of the ensemble.
Conformers Calculated Total Number 300
Conformers Submitted Total Number 20
Representative Model 8 (it is the lowest potential energy structure of the ensemble)
Computation: NMR Software
# Classification Version Software Name Author
1 collection 2.1 XwinNMR Bruker
2 processing 1.8 NMRPipe Delaglio, F. et al.
3 data analysis 3.95 Sparky Goddard, T.D. and Kneller, D.G.
4 refinement 1.0 CNSsolve Brunger, A.T. et al.