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NMR Structure of En-6 pheromone from the Antarctic Ciliate Euplotes nobilii
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D DQF-COSY 1 mM En-6, 20 mM sodium phosphate 90% H2O/10% D2O 6 ambient 298 2 2D 1H-1H TOCSY 1 mM En-6, 20 mM sodium phosphate 90% H2O/10% D2O 6 ambient 298 3 2D 1H-1H NOESY 1 mM En-6, 20 mM sodium phosphate 90% H2O/10% D2O 6 ambient 298 4 2D 1H-1H NOESY 1 mM En-6, 20 mM sodium phosphate 100% D2O 6 ambient 298 5 1D 1H 1 mM En-6, 20 mM sodium phosphate, 1 mM DSS 90% H2O/10% D2O 6 ambient 298
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE 600
NMR Refinement Method Details Software torsion angle dynamics, energy minimization CYANA-1.2, used within the 7-cycle iterated ATNOS/CANDID/CYANA procedure and OPALp, applied to the final conformer bundle from ATNOS/CANDID/CYANA CARA
NMR Ensemble Information Conformer Selection Criteria target function Conformers Calculated Total Number 80 Conformers Submitted Total Number 20 Representative Model 1 (closest to the average)
Computation: NMR Software # Classification Version Software Name Author 1 chemical shift assignment CARA 1.5.3 Keller and Wuthrich 2 collection XwinNMR Bruker Biospin 3 peak assignment ATNOS/CANDID 1.1 Herrmann, Guntert and Wuthrich 4 structure solution ATNOS/CANDID 1.1 Herrmann, Guntert and Wuthrich 5 peak picking CYANA 1.2 Guntert, Mumenthaler and Wuthrich 6 refinement OPAL p Koradi, Billeter and Guntert