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Solution Structure of a Bacterial Cyclic Nucleotide-Activated K+ Channel Binding Domain in Complex with cAMP
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 3D_15N-separated_NOESY 0.5 mM [U-100% 13C; U-100% 15N] MlCNBD Protein, 0.5 mM [U-100% 13C; U-100% 15N] ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE, 95% H2O, 5% D2O 95% H2O/5% D2O 100 mM KCl 7.0 ambient 298 2 3D_13C-separated_NOESY 0.5 mM [U-100% 13C; U-100% 15N] MlCNBD Protein, 0.5 mM [U-100% 13C; U-100% 15N] ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE, 95% H2O, 5% D2O 95% H2O/5% D2O 100 mM KCl 7.0 ambient 298 3 3D_13C-separated_NOESY 0.5 mM [U-100% 13C; U-100% 15N] MlCNBD Protein, 0.5 mM [U-100% 13C; U-100% 15N] ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE, 100 % D2O 100% D2O 100 mM KCl 7.0 ambient 298
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian Unity INOVA with cryogenic triple resonance probe 800
NMR Refinement Method Details Software torsion angle dynamics The NMR structure ensemble is based on total of 2388 NOE-derived distance constraints. VnmrJ
NMR Ensemble Information Conformer Selection Criteria 15 structures with the lowest energy Conformers Calculated Total Number 100 Conformers Submitted Total Number 15 Representative Model 1 (lowest energy and fewest violations)
Computation: NMR Software # Classification Version Software Name Author 1 processing VnmrJ 1.1d Varian 2 processing NMRPipe 3.0 Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax 3 data analysis CARA 1.8.4 Keller and Wuthrich 4 chemical shift assignment CARA 1.8.4 Keller and Wuthrich 5 peak picking CARA 1.8.4 Keller and Wuthrich 6 structure solution ATNOS/CANDID 1.1 Herrmann, Guntert and Wuthrich 7 refinement ATNOS/CANDID 1.1 Herrmann, Guntert and Wuthrich 8 structure solution CYANA 1.1 Guntert, Mumenthaler and Wuthrich 9 refinement CYANA 1.1 Guntert, Mumenthaler and Wuthrich