High-resolution solution structure of the orally active insecticidal spider venom peptide U1-TRTX-Sp1a
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D 1H-15N HSQC | 700 uM U1-TRTX-Sp1a, 10 mM potassium phosphate | 95% H2O/5% D2O | 5.85 | ambient | 298 | ||
| 2 | 2D 1H-13C HSQC | 700 uM U1-TRTX-Sp1a, 10 mM potassium phosphate | 95% H2O/5% D2O | 5.85 | ambient | 298 | ||
| 3 | 2D 1H-1H TOCSY | 700 uM U1-TRTX-Sp1a, 10 mM potassium phosphate | 95% H2O/5% D2O | 5.85 | ambient | 298 | ||
| 4 | 2D DQF-COSY | 700 uM U1-TRTX-Sp1a, 10 mM potassium phosphate | 95% H2O/5% D2O | 5.85 | ambient | 298 | ||
| 5 | 2D 1H-1H NOESY | 700 uM U1-TRTX-Sp1a, 10 mM potassium phosphate | 95% H2O/5% D2O | 5.85 | ambient | 298 | ||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 900 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| torsion angle dynamics | TopSpin | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 100 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | TopSpin | Bruker Biospin | |
| 2 | chemical shift assignment | CCPNMR | CCPN | |
| 3 | data analysis | CCPNMR | CCPN | |
| 4 | structure solution | CYANA | Guntert, Mumenthaler and Wuthrich | |
| 5 | refinement | CYANA | Guntert, Mumenthaler and Wuthrich | |














