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Structure and influence on stability and activity of the N-terminal propetide part of lung surfactant protein C
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D NOESY 0.5mM SP-Ci(1-31) in 35mM [2H38]dodecylphosphocholine (DPC), 50mM sodium phosphate buffer 90% H2O/10% D2O 0.1 7.5 ambient 297 2 2D TOCSY 0.5mM SP-Ci(1-31) in 35mM [2H38]dodecylphosphocholine (DPC), 50mM sodium phosphate buffer 90% H2O/10% D2O 0.1 7.5 ambient 297 3 DQF-COSY 0.5mM SP-Ci(1-31) in 35mM [2H38]dodecylphosphocholine (DPC), 50mM sodium phosphate buffer 90% H2O/10% D2O 0.1 7.5 ambient 297 4 2D NOESY 0.5mM SP-Ci(1-31) [2H5]-ethanol 0 7 ambient 287 5 2D TOCSY 0.5mM SP-Ci(1-31) [2H5]-ethanol 0 7 ambient 287
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian INOVA 800 2 Bruker DMX 600
NMR Refinement Method Details Software torsion angle dynamics the structures are based on a total of 344 restraints, 263 are NOE-derived
distance constraints, 81 dihedral angle restraints VNMR
NMR Ensemble Information Conformer Selection Criteria structures with favorable non-bond energy,structures with the least restraint violations,structures with the lowest energy,target function Conformers Calculated Total Number 50 Conformers Submitted Total Number 20 Representative Model 1 (closest to the average,fewest violations,lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 collection VNMR 1.1.D varian 2 processing PROSA 3.2 P.Guntert 3 data analysis XEASY 3.0 R. Koradi 4 structure solution DYANA 2.6 P.guntert 5 refinement OPAL 3.0 P.Luginbul