NMR solution structure of Paws Derived Peptide-25 (PDP-25)
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D 1H-1H NOESY | 2 mg/mL PDP-25 | 40% H2O/10% D2O/50% CD3CN | 0 mM | 3.5 | ambient | 298 | Bruker AVANCE III HD 700 |
| 2 | 2D 1H-1H TOCSY | 2 mg/mL PDP-25 | 40% H2O/10% D2O/50% CD3CN | 0 mM | 3.5 | ambient | 298 | Bruker AVANCE III HD 700 |
| 3 | 2D 1H-13C HSQC | 2 mg/mL PDP-25 | 40% H2O/10% D2O/50% CD3CN | 0 mM | 3.5 | ambient | 298 | Bruker AVANCE III HD 700 |
| 4 | 2D 1H-15N HSQC | 2 mg/mL PDP-25 | 40% H2O/10% D2O/50% CD3CN | 0 mM | 3.5 | ambient | 298 | Bruker AVANCE III HD 700 |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE III HD | 700 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | Structures were calculated in CNS and energy minimised in explicit solvent. | CNS |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with acceptable covalent geometry |
| Conformers Calculated Total Number | 50 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | TopSpin | Bruker Biospin | |
| 2 | processing | TopSpin | Bruker Biospin | |
| 3 | chemical shift assignment | CARA | Keller and Wuthrich | |
| 4 | structure calculation | CYANA | Guntert, Mumenthaler and Wuthrich | |
| 5 | refinement | CNS | 1.21 | Brunger, Adams, Clore, Gros, Nilges and Read |
