1F3K
THREE-DIMENSIONAL SOLUTION STRUCTURE OF OMEGA-CONOTOXIN TXVII, AN L-TYPE CALCIUM CHANNEL BLOCKER
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 5mM omega-conotoxin TxVII | 90% H2O/10% D2O | 0 | 5.6 | ambient | 288 | |
2 | DQF-COSY | 5mM omega-conotoxin TxVII | 90% H2O/10% D2O | 0 | 5.6 | ambient | 288 | |
3 | TOCSY | 5mM omega-conotoxin TxVII | 90% H2O/10% D2O | 0 | 5.6 | ambient | 288 | |
4 | 2D NOESY | 5mM omega-conotoxin TxVII | D2O | 0 | 5.6 | ambient | 288 | |
5 | DQF-COSY | 5mM omega-conotoxin TxVII | D2O | 0 | 5.6 | ambient | 288 | |
6 | PE-COSY | 5mM omega-conotoxin TxVII | D2O | 0 | 5.6 | ambient | 288 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | AMX | 500 |
NMR Refinement | ||
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Method | Details | Software |
distance geometry, simulated annealing | The structures are based on a total of 452 restraints, 411 are NOE-derived distance constraints, 20 dihedral angle restraints, 21 distance restraints from hydrogen bonds and disulfide bonds. | UXNMR |
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 |
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 | UXNMR | 970101.2 | Bruker |
2 | processing | UXNMR | 970101.2 | Bruker |
3 | data analysis | UXNMR | 970101.2 | Bruker |
4 | data analysis | X-PLOR | 3.1 | Brunger |
5 | refinement | X-PLOR | 3.1 | Brunger |
6 | structure solution | X-PLOR | 3.1 | Brunger |