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Solution structure of porcine peptide YY (pPYY)
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D NOESY 2mM pPYY, pH=4.2 90% H2O/10% D2O 4.2 ambient 301 2 DQF-COSY 2mM pPYY, pH=4.2 90% H2O/10% D2O 4.2 ambient 301 3 2D TOCSY 2mM pPYY, pH=4.2 90% H2O/10% D2O 4.2 ambient 301 4 2D NOESY 2mM pPYY, pH=4.2 99% D2O 4.2 ambient 301 5 DQF-COSY 2mM pPYY, pH=4.2 99% D2O 4.2 ambient 301 6 15N{1H}-NOE 1mM U-15N-pPYY, pH=4.2 90% H2O/10% D2O 4.2 ambient 301
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DRX 500 2 Bruker DRX 600 3 Bruker AVANCE 700
NMR Refinement Method Details Software calculation of structure by torsion angle dynamics
refinement by energy minimization with full forcefield in explicit water XwinNMR
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 100 Conformers Submitted Total Number 20 Representative Model 1 (lowest energy)
Additional NMR Experimental Information Details backbone dynamics information was used to verify structures.
Structure deviates from previously published structure by Keire et al., pdb entry 1qbf
Computation: NMR Software # Classification Version Software Name Author 1 collection XwinNMR 3.0 Bruker 2 data analysis XEASY 2.51 Bartels et al. 3 refinement AMBER6 6 Kollman et al. 4 structure solution DYANA 1.5 Guentert et al.