1MTQ
THREE-DIMENSIONAL SOLUTION STRUCTURE OF ALPHA-CONOTOXIN GID BY NMR SPECTROSCOPY
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D TOCSY | 2.5mM peptide; 90% H2O, 10% D2O | 90% H2O/10% D2O | 0 | 2.8 | ambient | 287 | |
2 | 2D NOESY | 2.5mM peptide; 90% H2O, 10% D2O | 90% H2O/10% D2O | 0 | 2.8 | ambient | 287 | |
3 | DQF-COSY | 2.5mM peptide; 90% H2O, 10% D2O | 90% H2O/10% D2O | 0 | 2.8 | ambient | 287 | |
4 | E-COSY | 2.5mM peptide; 90% H2O, 10% D2O | 90% H2O/10% D2O | 0 | 2.8 | ambient | 287 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DRX | 750 |
NMR Refinement | ||
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Method | Details | Software |
Initial structures were calculated using torsion angle dynamics and structures were refined in a water shell using cartesian dynamics. | the structures are based on a total of 183 NOE derived distance restraints, 15 dihedral angle restraints. | XwinNMR |
NMR Ensemble Information | |
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Conformer Selection Criteria | all calculated structures submitted, structures with the lowest energy |
Conformers Calculated Total Number | 50 |
Conformers Submitted Total Number | 20 |
Representative Model | 16 (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 | XEASY | 1.3.7 | Xia and Bartels |
3 | structure solution | DYANA | 1.5 | Guentert |
4 | refinement | CNS | 1.0 | Brunger et al. |