Solution structure of hypothetical protein MTH1175 from Methanobacterium thermoautotrophicum
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 4D_13C-separated_NOESY | 2 mM MTH1175 U-15N; 25 mM phosphate buffer, pH* 6.1, 150 mM NaCl | 99% D2O | 150 mM salt, 25 mM phosphate buffer | 6.5 | ambient | 298 | |
2 | 3D_15N-separated_NOESY | 2 mM MTH1175 U-15N; 25 mM phosphate buffer, pH 6.5, 150 mM NaCl, 90% H2O, 10% D2O | 90% H2O/10% D2O | 150 mM salt, 25 mM phosphate buffer | 6.5 | ambient | 298 | |
3 | HNHA | 2 mM MTH1175 U-15N; 25 mM phosphate buffer, pH 6.5, 150 mM NaCl, 90% H2O, 10% D2O | 90% H2O/10% D2O | 150 mM salt, 25 mM phosphate buffer | 6.5 | ambient | 298 | |
4 | 3D_13C,15N-simultaneous NOESY | 2 mM MTH1175 U-15N,13C; 25 mM phosphate buffer, pH 6.5, 150 mM NaCl, 90% H2O, 10% D2O | 90% H2O/10% D2O | 150 mM salt, 25 mM phosphate buffer | 6.5 | ambient | 298 | |
5 | 1H-15N HSQC D2O exchange | 150 mM salt, 25 mM phosphate buffer | 6.5 | ambient | 298 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | INOVA | 800 |
2 | Varian | INOVA | 750 |
3 | Varian | INOVA | 600 |
4 | Varian | UNITYPLUS | 500 |
NMR Refinement | ||
---|---|---|
Method | Details | Software |
distance geometry and simulated annealing | 436 NOE-derived distance constraints, 40 dihedral angle constraints (phi), 58 hydrogen bonds (2 constraints per H-bond) | X-PLOR |
NMR Ensemble Information | |
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Conformer Selection Criteria | all calculated structures submitted |
Conformers Calculated Total Number | 20 |
Conformers Submitted Total Number | 20 |
Representative Model | 10 (fewest violations) |
Computation: NMR Software | ||||
---|---|---|---|---|
# | Classification | Version | Software Name | Author |
1 | refinement | X-PLOR | 3.1 | Brunger |
2 | processing | Felix | 98 | MSI |
3 | collection | VNMR | Varian | |
4 | structure solution | X-PLOR | 3.1 |