Solution structure and alanine scan of a spider toxin that affects the activation of mammalian sodium channels
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D TOCSY | 2.2mM Magi 5, 95% H2O, 5% D2O | 95% H2O/5% D2O | 4.5 | AMBIENT | 278 | ||
| 2 | 2D NOESY | 2.2mM Magi 5, 95% H2O, 5% D2O | 95% H2O/5% D2O | 4.5 | AMBIENT | 278 | ||
| 3 | DQF-COSY | 2.2mM Magi 5, 95% H2O, 5% D2O | 95% H2O/5% D2O | 4.5 | AMBIENT | 278 | ||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 800 |
| 2 | Bruker | DRX | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | XwinNMR | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 100 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (closest to the average) |
| Additional NMR Experimental Information | |
|---|---|
| Details | THIS STRUCTURE WAS DETERMINED USING STANDARD 2D HOMONUCLEAR TECHNIQUES |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | processing | XwinNMR | 3.5 | Bruker Biospin |
| 2 | processing | TopSpin | 1.3 | Bruker Biospin |
| 3 | data analysis | XEASY | 1.3.13 | Bartels |
| 4 | structure solution | CYANA | 1.0.6 | Hermann |
| 5 | refinement | XPLOR-NIH | 2.9.3 | Schwieters |
