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Solution structure of the leech carboxypeptidase inhibitor
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D NOESY 1mM 15N-labeled leech carboxypeptidase inhibitor; 90% H2O, 10% D2O 90% H2O/10% D2O 20mM phosphate buffer 3.5 ambient 300 2 2D TOCSY 1mM 15N-labeled leech carboxypeptidase inhibitor; 90% H2O, 10% D2O 90% H2O/10% D2O 20mM phosphate buffer 3.5 ambient 300 3 3D_15N-separated_NOESY 1mM 15N-labeled leech carboxypeptidase inhibitor; 90% H2O, 10% D2O 90% H2O/10% D2O 20mM phosphate buffer 3.5 ambient 300 4 1H-15N HSQC 1mM 15N-labeled leech carboxypeptidase inhibitor; 90% H2O, 10% D2O 90% H2O/10% D2O 20mM phosphate buffer 3.5 ambient 300 5 1H-15N HSQC 1mM 15N-labeled leech carboxypeptidase inhibitor; 100% D2O 100% D2O 20mM phosphate buffer 3.5 ambient 300
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DRX 600
NMR Refinement Method Details Software simulated annealing XwinNMR
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 40 Conformers Submitted Total Number 20 Representative Model 18 (closest to the average)
Additional NMR Experimental Information Details amide proton exchange experiments were carried out
Computation: NMR Software # Classification Version Software Name Author 1 collection XwinNMR Bruker software 2 processing Sparky SPARKY 3 Bruker software 3 data analysis Sparky SPARKY 3 Goddard and Kneller 4 structure solution CNS Brunger 5 refinement CNS Brunger