1EWS
THE THREE-DIMENSIONAL SOLUTION STRUCTURE OF THE RABBIT KIDNEY DEFENSIN, RK-1
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | DQF-COSY | 1.5 mM RK1 | 90% H2O/10% D2O | 3.5 | ambient | 308 | ||
2 | 2D NOESY | 1.5 mM RK1 | 90% H2O/10% D2O | 3.5 | ambient | 308 | ||
3 | E-COSY | 1.5 mM RK1 | 100% D2O | 3.5 | ambient | 308 | ||
4 | 2D NOESY | 1.5 mM RK1 | 100% D2O | 3.5 | ambient | 308 | ||
5 | 2D NOESY | 1.5 mM RK1 | 30% CD3CN: 70% H2O | 3.5 | ambient | 308 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | ARX | 500 |
2 | Bruker | DMX | 750 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing | The structures are based on a total of 509 distance restraints consisting of 498 NOE-derived distance restraints, 11 restraints from hydrogen bonds and 31 dihedral angle restraints | XwinNMR |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with acceptable covalent geometry |
Conformers Calculated Total Number | 50 |
Conformers Submitted Total Number | 20 |
Representative Model | 9 (lowest energy) |
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 | 2.6 | Bruker |
2 | data analysis | X-EASY | 1.3.7 | Eccles, Guntert, Billeter, Wuthrich |
3 | structure solution | X-PLOR | 3.1 | Brunger |
4 | refinement | X-PLOR | 3.1 | Brunger |