NMR structure of a peptide containing a dimetylthiazolidine : an analog of delta conotoxin EVIA loop 2
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D NOESY | peptide concentration : 2mM | 90% H2O/10% D2O | 3 | 1 atm | 283 | ||
| 2 | 2D TOCSY | peptide concentration : 2mM | 90% H2O/10% D2O | 3 | 1 atm | 283 | ||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 500 |
| 2 | Varian | UNITYPLUS | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| The peptide was subjected to simulated annealing restraints molecular dynamics using the cvff forcefield | IRMA was used to refine the structure | XwinNMR |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the least restraint violations, structures with the lowest energy |
| Conformers Calculated Total Number | 50 |
| Conformers Submitted Total Number | 10 |
| Representative Model | 1 (lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | XwinNMR | 2.6 | |
| 2 | collection | VNMR | 2000 (6.1) | |
| 3 | processing | Felix | 2000 | |
| 4 | structure solution | Discover | 2.98 | |
| 5 | refinement | IRMA | 200 | Boelens R, Koning TMG, Kaptein R |
