1POQ
Solution Structure of a Superantigen from Yersinia pseudotuberculosis
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 0.5mM YPM protein (33-151), 95% H2O, 5% D2O | 95% H2O/5% D2O | 6.5 | ambient | 298 | ||
2 | 2D TOCSY | 0.5mM YPM protein (33-151), 95% H2O, 5% D2O | 95% H2O/5% D2O | 6.5 | ambient | 298 | ||
3 | DQF-COSY | 0.5mM YPM protein (33-151), 95% H2O, 5% D2O | 95% H2O/5% D2O | 6.5 | ambient | 298 | ||
4 | HNHA | 0.5mM YPM protein (33-151), 95% H2O, 5% D2O | 95% H2O/5% D2O | 6.5 | ambient | 298 | ||
5 | HN(CO)CA | 0.5mM YPM protein (33-151), 95% H2O, 5% D2O | 95% H2O/5% D2O | 6.5 | ambient | 298 | ||
6 | HNCA | 0.5mM YPM protein (33-151), 95% H2O, 5% D2O | 95% H2O/5% D2O | 6.5 | ambient | 298 | ||
7 | CBCA(CO)NH | 0.5mM YPM protein (33-151), 95% H2O, 5% D2O | 95% H2O/5% D2O | 6.5 | ambient | 298 | ||
8 | HNCACB | 0.5mM YPM protein (33-151), 95% H2O, 5% D2O | 95% H2O/5% D2O | 6.5 | ambient | 298 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DRX | 600 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing, molecular dynamics, torsion angle dynamics | Final structures were based on 1934 unambiguous NOE-derived distance constraints, 139 ambiguous constraints, 135 dihedral angle restraints and 26 hydrogen bond distance restraints. | XwinNMR |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the lowest energy |
Conformers Calculated Total Number | 100 |
Conformers Submitted Total Number | 20 |
Representative Model | 1 (lowest energy) |
Additional NMR Experimental Information | |
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Details | This structure was determined using standard 2D homonuclear and triple-resonance NMR spectroscopy. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | processing | XwinNMR | 2.6 | Bruker |
2 | data analysis | XEASY | 1.3.13 | Bartels et al |
3 | refinement | DYANA | 1.5 | Guntert et al |
4 | structure solution | ARIA | 1.1.2 | Linge et al |