2M2S
Solution structure of the antimicrobial peptide [Aba5,7,12,14]BTD-2
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D 1H-1H TOCSY | 0.5 mM [Aba5,7,12,14]BTD, 10 uM DSS | 90% H2O/10% D2O | 5 | ambient | 298 | ||
| 2 | 2D 1H-1H NOESY | 0.5 mM [Aba5,7,12,14]BTD, 10 uM DSS | 90% H2O/10% D2O | 5 | ambient | 298 | ||
| 3 | 2D 1H-13C HSQC | 0.6 mM [Aba5,7,12,14]BTD, 10 uM DSS | 100% D2O | 5 | ambient | 298 | ||
| 4 | 2D DQF-COSY | 0.5 mM [Aba5,7,12,14]BTD, 10 uM DSS | 90% H2O/10% D2O | 5 | ambient | 298 | ||
| 5 | 2D 1H-1H ECOSY | 0.6 mM [Aba5,7,12,14]BTD, 10 uM DSS | 100% D2O | 5 | ambient | 298 | ||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 500 |
| 2 | Bruker | AVANCE | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing, torsion angle dynamics | Structures were calculated using the scripts from the RECOORD database. Used to calculate preliminary structures | CcpNmr |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 50 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | data analysis | CcpNmr | 2.1 | CCPN |
| 2 | chemical shift assignment | CcpNmr | 2.1 | CCPN |
| 3 | peak picking | CcpNmr | 2.1 | CCPN |
| 4 | collection | TopSpin | 2.1 | Bruker Biospin |
| 5 | processing | TopSpin | 2.1 | Bruker Biospin |
| 6 | structure solution | CYANA | 3.0 | Guntert, Mumenthaler and Wuthrich |
| 7 | refinement | CNS | 2.1 | Brunger, Adams, Clore, Gros, Nilges and Read |
| 8 | refinement | CYANA | 3.0 | Guntert, Mumenthaler and Wuthrich |
