NMR Experiment |
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
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1 | TROSY versions of HNCA, HNCACB and HNCO; 3D 15N-TOCSY-HSQC. | 1.5 mM spc25G U-15N,13C,85%-2H, 1.5 mM spc24G natural abundance isotopes, 95% H2O, 5% D2O | 50 mM Phosphate buffer Na, pH 7.0, 1 mM azide, 95% H2O, 5% D2O. | 50 mM sodium phosphate buffer | 7.0 | ambient | 303 | |
2 | TROSY versions of HNCA, HNCACB and HNCO; 3D 15N-TOCSY-HSQC. | 1.5 mM spc25G natural abundance isotopes, 1.5 mM spc24G U-15N,13C,85%-2H, 95% H2O, 5% D2O | 50 mM Phosphate buffer Na, pH 7.0, 1 mM azide, 95% H2O, 5% D2O. | 50 mM sodium phosphate buffer | 7.0 | ambient | 303 | |
3 | 3D 15N-NOESY, 3D 13C-NOESY, and 3D 15N-edited 13C-filtered NOESY; 2D spin echo difference experiments for measuring three-bond J(C'C) and J(NC); standard HNCO-based 3D experiments for measuring one-bond J(NH) and J(C'CA). | 1.5 mM spc25G U-15N,13C, 1.5 mM spc24G natural abundance isotopes, 95% H2O, 5% D2O | 50 mM Phosphate buffer Na, pH 7.0, 1 mM azide, 95% H2O, 5% D2O. | 50 mM sodium phosphate buffer | 7.0 | ambient | 303 | |
4 | 3D 15N-NOESY, 3D 13C-NOESY, and 3D 15N-edited 13C-filtered NOESY; 2D spin echo difference experiments for measuring three-bond J(C'C), J(NC) and J(CC); standard HNCO-based 3D experiments for measuring one-bond J(NH). | 1.5 mM spc25G natural abundance isotopes, 1.5 mM spc24G U-15N,13C, 95% H2O, 5% D2O | 50 mM Phosphate buffer Na, pH 7.0, 1 mM azide, 95% H2O, 5% D2O. | 50 mM sodium phosphate buffer | 7.0 | ambient | 303 | |
5 | Standard HNCO-based 3D experiments for measuring residual one-bond D(NH) and D(C'CA). | 1.5 mM spc25G U-15N,13C, 85%-2H, 1.5 mM spc24G natural abundance isotopes, 50 mg/mL Pf1 phage, 95% H2O, 5% D2O | 50 mM Phosphate buffer Na, pH 7.0, 1 mM azide, 95% H2O, 5% D2O. | 50 mM sodium phosphate buffer | 7.0 | ambient | 303 | |
6 | Standard HNCO-based 3D experiments for measuring residual one-bond D(NH). | 1.5 mM spc25G natural abundance isotopes, 1.5 mM spc24G U-15N,13C, 50 mg/mL Pf1 phage, 95% H2O, 5% D2O | 50 mM Phosphate buffer Na, pH 7.0, 1 mM azide, 95% H2O, 5% D2O. | 50 mM sodium phosphate buffer | 7.0 | ambient | 303 | |