1IE6
SOLUTION STRUCTURE OF IMPERATOXIN A
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 5mM Imperatoxin A; 90% H2O, 10% D2O | 90% H2O/10% D2O | 0 | 3.4 | ambient | 300 | |
2 | DQF-COSY | 5mM Imperatoxin A; 90% H2O, 10% D2O | 90% H2O/10% D2O | 0 | 3.4 | ambient | 300 | |
3 | E-COSY | 5mM Imperatoxin A; 90% H2O, 10% D2O | 90% H2O/10% D2O | 0 | 3.4 | ambient | 300 |
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 |
distance geometry simulated annealing | The structures are based on a total of 519 restraints, 473 are NOE-derived distance constraints, 25 dihedral angle restraints, 12 distance restraints from hydrogen bonds, and 9 distance restraints form disulfide bonds. | XwinNMR |
NMR Ensemble Information | |
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Conformer Selection Criteria | The submitted conformer models are those with the lowest energy and the least restraint violations. |
Conformers Calculated Total Number | 100 |
Conformers Submitted Total Number | 20 |
Representative Model | 11 (closest to the average) |
Additional NMR Experimental Information | |
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Details | This structure was determined using standard 2D homonuclear techniques. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | collection | XwinNMR | 3.0 | Bruker |
2 | processing | XwinNMR | 3.0 | Bruker |
3 | structure solution | X-PLOR | 3.851 | Brunger |
4 | refinement | X-PLOR | 3.851 | Brunger |