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NMR solution structure of a Bowman Birk inhibitor isolated from snail medic seeds (Medicago Scutellata)
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D TOCSY 1mM MSTI, 20mM phosphate buffer NA 95% H2O/5% D2O 20mM NA 5.6 ambient 300 2 2D NOESY 1mM MSTI, 20mM phosphate buffer NA 95% H2O/5% D2O 20mM NA 5.6 ambient 300 3 DQF-COSY 1mM MSTI, 20mM phosphate buffer NA 95% H2O/5% D2O 20mM NA 5.6 ambient 300 4 2D TOCSY 1mM MSTI, 20mM phosphate buffer NA D2O 20mM NA 5.6 ambient 300 5 2D TOCSY 1mM MSTI, 20mM phosphate buffer NA 95% H2O/5% D2O 20mM NA 5.6 ambient 310 6 2D TOCSY 1mM MSTI, 20mM phosphate buffer NA 95% H2O/5% D2O 20mM NA 5.6 ambient 320
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DMX 500 2 Bruker AVANCE 700 3 Bruker AVANCE 800
NMR Refinement Method Details Software simulated annealing
torsion angle dynamics
energy minimization XwinNMR
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 20 Conformers Submitted Total Number 15 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 collection XwinNMR 2.6 BRUKER 2 data analysis XEASY 1.3.13 Bartels 3 structure solution DYANA 1.5 Guntert 4 refinement Discover 98 MSI