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Solution structure of Hbeta4 extracellular loop of BK potassium channel
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 3D HNCA 0.5 mM [U-13C; U-15N] Hbeta4, 25 mM sodium phosphate, 50 mM sodium chloride 90% H2O/10% D2O 75 mM 6.8 1 atm 293 Varian INOVA 600 2 3D HNCACB 0.5 mM [U-13C; U-15N] Hbeta4, 25 mM sodium phosphate, 50 mM sodium chloride 90% H2O/10% D2O 75 mM 6.8 1 atm 293 Varian INOVA 600 3 3D CBCA(CO)NH 0.5 mM [U-13C; U-15N] Hbeta4, 25 mM sodium phosphate, 50 mM sodium chloride 90% H2O/10% D2O 75 mM 6.8 1 atm 293 Varian INOVA 600 4 3D HNCO 0.5 mM [U-13C; U-15N] Hbeta4, 25 mM sodium phosphate, 50 mM sodium chloride 90% H2O/10% D2O 75 mM 6.8 1 atm 293 Varian INOVA 600 5 3D 1H-15N TOCSY 0.5 mM [U-13C; U-15N] Hbeta4, 25 mM sodium phosphate, 50 mM sodium chloride 90% H2O/10% D2O 75 mM 6.8 1 atm 293 Varian INOVA 600 6 3D 1H-15N NOESY 0.5 mM [U-13C; U-15N] Hbeta4, 25 mM sodium phosphate, 50 mM sodium chloride 90% H2O/10% D2O 75 mM 6.8 1 atm 293 Varian INOVA 600 7 2D 1H-13C HSQC aliphatic 0.5 mM [U-13C; U-15N] Hbeta4, 25 mM sodium phosphate, 50 mM sodium chloride, 100% D2O 100% D2O 75 mM 6.8 1 atm 293 Varian INOVA 600 8 2D 1H-13C HSQC aromatic 0.5 mM [U-13C; U-15N] Hbeta4, 25 mM sodium phosphate, 50 mM sodium chloride, 100% D2O 100% D2O 75 mM 6.8 1 atm 293 Varian INOVA 600 9 3D 1H-13C NOESY aliphatic 0.5 mM [U-13C; U-15N] Hbeta4, 25 mM sodium phosphate, 50 mM sodium chloride, 100% D2O 100% D2O 75 mM 6.8 1 atm 293 Varian INOVA 600 10 3D 1H-13C NOESY aromatic 0.5 mM [U-13C; U-15N] Hbeta4, 25 mM sodium phosphate, 50 mM sodium chloride, 100% D2O 100% D2O 75 mM 6.8 1 atm 293 Varian INOVA 600 11 3D HCCH-TOCSY 0.5 mM [U-13C; U-15N] Hbeta4, 25 mM sodium phosphate, 50 mM sodium chloride, 100% D2O 100% D2O 75 mM 6.8 1 atm 293 Varian INOVA 600
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian INOVA 600
NMR Refinement Method Details Software simulated annealing X-PLOR
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 100 Conformers Submitted Total Number 20 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 processing NMRDraw Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax 2 chemical shift assignment NMRPipe Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax 3 refinement X-PLOR Brunger