Solution Structure of the Cyclotide Palicourein: Implications for the development of pharmaceutical and agricultural applications
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D TOCSY | 3.8 mM Palicourein, 90% H2O, 10% D2O | 90% H2O/10% D2O | 4.0 | ambient | 295 | ||
| 2 | 2D NOESY | 3.8 mM Palicourein, 90% H2O, 10% D2O | 90% H2O/10% D2O | 4.0 | ambient | 295 | ||
| 3 | E-COSY | |||||||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | DMX | 750 |
| 2 | Bruker | ARX | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing, torsion angle dynamics | CNS | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | lowest energy structures |
| Conformers Calculated Total Number | 50 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | structure calculation | DYANA | Guntert, Braun and Wuthrich | |
| 2 | refinement | CNS | Brunger, Adams, Clore, Gros, Nilges and Read | |
