Solution structure of hypothetical protein MTH538 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 | 2mM MTH538 U-15N,13C; 25 mM phosphate buffer pH 7.1, 150 mM NaCl, 5 mM DTT | 99% D2O | 150 mM salt, 25 mM phosphate buffer | 7.4 | ambient | 298 | |
2 | 3D_15N-separated_NOESY | 2mM MTH538 U-15N; 25 mM phosphate buffer pH 7.4, 150 mM NaCl, 90% H2O, 10% D2O, 5 mM DTT | 90% H2O/10% D2O | 150 mM salt, 25 mM phosphate buffer | 7.4 | ambient | 298 | |
3 | HMQC-J | 2mM MTH538 U-15N; 25 mM phosphate buffer pH 7.4, 150 mM NaCl, 90% H2O, 10% D2O, 5 mM DTT | 90% H2O/10% D2O | 150 mM salt, 25 mM phosphate buffer | 7.4 | ambient | 298 | |
4 | 3D_13C,15N-simultaneous NOESY | 2mM MTH538 U-15N,13C; 25 mM phosphate buffer pH 7.4, 150 mM NaCl, 90% H2O, 10% D2O, 5 mM DTT | 90% H2O/10% D2O | 150 mM salt, 25 mM phosphate buffer | 7.4 | ambient | 298 | |
5 | 1H-15N HSQC D2O exchange | 2mM MTH538 U-15N; 25 mM phosphate buffer pH 7.1, 150 mM NaCl, 5 mM DTT | 99% D2O | 150 mM salt, 25 mM phosphate buffer | 7.4 | ambient | 298 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | INOVA | 600 |
2 | Varian | UNITYPLUS | 500 |
NMR Refinement | ||
---|---|---|
Method | Details | Software |
distance geometry and simulated annealing | 519 NOE-derived distance constraints 55 dihedral angle constraints (phi) 28 hydrogen bonds (2 constraints per H-bond) | X-PLOR |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with favorable non-bond energy,structures with the least restraint violations,structures with the lowest energy |
Conformers Calculated Total Number | 20 |
Conformers Submitted Total Number | 16 |
Representative Model | 1 (fewest violations) |
Computation: NMR Software | ||||
---|---|---|---|---|
# | Classification | Version | Software Name | Author |
1 | structure solution | X-PLOR | 3.1 | Brunger |
2 | processing | Felix | 98 | MSI |
3 | collection | VNMR | Varian | |
4 | refinement | X-PLOR | 3.1 | Brunger |