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Solution structure of the ribosome-associated cold shock response protein Yfia of Escherichia coli
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 HNHA 0.8mM Yfia, U-15N-13C; 50mM phosphate buffer, 50mM LiCl 90% H2O/10% D2O 50mM LiCl, 50mM KH2PO4 6.5 ambient 300 2 3D_15N-separated_NOESY 0.5mM Yfia, U-15N; 50mM phosphate buffer, 50mM LiCl 90% H2O/10% D2O 50mM LiCl, 50mM KH2PO4 6.5 ambient 300 3 3D_13C-separated_NOESY 0.8mM Yfia, U-15N-13C; 50mM phosphate buffer, 50mM LiCl 90% H2O/10% D2O 50mM LiCl, 50mM KH2PO4 6.5 ambient 300 4 2D NOESY 0.8mM Yfia; 50mM phosphate buffer, 50mM LiCl 90% H2O/10% D2O 50mM LiCl, 50mM KH2PO4 6.5 ambient 300
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian INOVA 600 2 Bruker DRX 500
NMR Refinement Method Details Software Torsion angle dynamics and simulated annealing XwinNMR
NMR Ensemble Information Conformer Selection Criteria structures with acceptable covalent geometry, structures with the least restraint violations Conformers Calculated Total Number 50 Conformers Submitted Total Number 29 Representative Model 1 (lowest energy)
Additional NMR Experimental Information Details Hydrogen bonds were extracted from a series of 15N-HSQC spectra recorded in D2O; Assignment was done using triple-resonance spectra
Computation: NMR Software # Classification Version Software Name Author 1 processing XwinNMR 3.2 Bruker, Rheinstetten, Germany 2 data analysis NDEE 2.03 SpinUp, Dortmund, Germany 3 collection VNMR 6.1B Varian, Darmstadt, Germany 4 data analysis AURELIA 2.3 Bruker, Rheinstetten, Germany 5 refinement CNS 1.0 Axel Bruenger