Full-sequence computational design and solution structure of a thermostable protein variant
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | aliphatic 3D_13C-separated_NOESY | Uniform (random) labeling with 13C, 15N: U-13C, U-15N, 95% H2O, 5% D2O | 95% H2O/5% D2O | 50 mM sodium phosphate | 5.5 | 1 atm | 293 | |
2 | aromatic 3D_13C-separated_NOESY | Uniform (random) labeling with 13C, 15N: U-13C, U-15N, 95% H2O, 5% D2O | 95% H2O/5% D2O | 50 mM sodium phosphate | 5.5 | 1 atm | 293 | |
3 | 3D_15N-separated_NOESY | Uniform (random) labeling with 13C, 15N: U-13C, U-15N, 95% H2O, 5% D2O | 95% H2O/5% D2O | 50 mM sodium phosphate | 5.5 | 1 atm | 293 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | INOVA | 600 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing, distance geometry | The structures are based on a total of 1321 restraints: 1245 are NOE-derived distance constraints, 57 are dihedral angle restraints and 19 distance restraints are from hydrogen bonds. | VNMR |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with acceptable covalent geometry,structures with the least restraint violations |
Conformers Calculated Total Number | 100 |
Conformers Submitted Total Number | 43 |
Representative Model | 1 (closest to the average) |
Additional NMR Experimental Information | |
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Details | The structure was determined using triple-resonance NMR spectroscopy. Hydrogen bond restraints were derived from protection factors measured by H/D exchange. Torsion angle restraints were derived from J-coupling data (HNHA experiment) and from TALOS predictions. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | collection | VNMR | 6.1C | varian |
2 | processing | NMRPipe | Delaglio, F. et al. | |
3 | data analysis | NMRView | 4.0 | Johnson, B.A. et al. |
4 | refinement | ARIA | 1.2 | Nilges, M. et al. |
5 | structure solution | ARIA | 1.2 | Nilges, M. et al. |