Cobatoxin 1 from Centruroides noxius Scorpion venom: Chemical Synthesis, 3-D Structure in Solution, Pharmacology and Docking on K+ channels
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D NOESY | 2mM Cobatoxin 1; 90% H2O, 10% D2O | 90% H2O/10% D2O | 3.1 | ambient | 300 | ||
| 2 | 2D TOCSY | 2mM Cobatoxin 1; 90% H2O, 10% D2O | 90% H2O/10% D2O | 3.1 | ambient | 300 | ||
| 3 | DQF-COSY | 2mM Cobatoxin 1; 90% H2O, 10% D2O | 90% H2O/10% D2O | 3.1 | ambient | 300 | ||
| 4 | 2D NOESY | 2mM Cobatoxin 1; 90% H2O, 10% D2O | 90% H2O/10% D2O | 3.1 | ambient | 300 | ||
| 5 | 2D TOCSY | 2mM Cobatoxin 1; 90% H2O, 10% D2O | 90% H2O/10% D2O | 3.1 | ambient | 300 | ||
| 6 | DQF-COSY | 2mM Cobatoxin 1; 90% H2O, 10% D2O | 90% H2O/10% D2O | 3.1 | ambient | 300 | ||
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| distance geometry calculation and CNS refinement | XwinNMR | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | back calculated data agree with experimental NOESY spectrum, structures with acceptable covalent geometry, structures with favorable non-bond energy, structures with the least restraint violations, structures with the lowest energy, target function |
| Conformers Calculated Total Number | 50 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (closest to the average, fewest violations, lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | XwinNMR | ||
| 2 | processing | NMRPipe | ||
| 3 | data analysis | XEASY | ||
| 4 | structure solution | DIANA | ||
| 5 | refinement | CNS | ||
| 6 | structure solution | Turbo-Frodo | ||
| 7 | structure solution | MOLMOL | ||
