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High resolution NMR structure of the theta-defensin HTD-2 (retrocyclin 2)
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-1H TOCSY 1.0 mM HTD-2-1 90% H2O/10% D2O 5.0 ambient 298 2 2D 1H-1H NOESY 1.0 mM HTD-2-1 90% H2O/10% D2O 5.0 ambient 298 3 2D 1H-13C HSQC 1.0 mM HTD-2-2 100% D2O 5.0 ambient 298 4 2D DQF-COSY 1.0 mM HTD-2-1 90% H2O/10% D2O 5.0 ambient 298 5 2D 1H-1H ECOSY 1.0 mM HTD-2-2 100% D2O 5.0 ambient 298 6 2D 1H-15N HSQC 1.0 mM HTD-2-1 90% H2O/10% D2O 5.0 ambient 298
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE 500 2 Bruker AVANCE 600 3 Bruker AVANCE 900
NMR Refinement Method Details Software simulated annealing, torsion angle dynamics Structures were calculated using the scripts from the RECOORD database. Sparky
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 50 Conformers Submitted Total Number 20 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 data analysis Sparky Goddard 2 chemical shift assignment Sparky Goddard 3 peak picking Sparky Goddard 4 collection TopSpin 2.1 Bruker Biospin 5 processing TopSpin 2.1 Bruker Biospin 6 structure solution CYANA 3.0 Guntert, Mumenthaler and Wuthrich 7 refinement CNS 2.1