NMR solution structure of a Bowman Birk inhibitor isolated from snail medic seeds (Medicago Scutellata)
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D TOCSY | 1mM MSTI, 20mM phosphate buffer NA | 95% H2O/5% D2O | 20mM NA | 5.6 | ambient | 300 | |
| 2 | 2D NOESY | 1mM MSTI, 20mM phosphate buffer NA | 95% H2O/5% D2O | 20mM NA | 5.6 | ambient | 300 | |
| 3 | DQF-COSY | 1mM MSTI, 20mM phosphate buffer NA | 95% H2O/5% D2O | 20mM NA | 5.6 | ambient | 300 | |
| 4 | 2D TOCSY | 1mM MSTI, 20mM phosphate buffer NA | D2O | 20mM NA | 5.6 | ambient | 300 | |
| 5 | 2D TOCSY | 1mM MSTI, 20mM phosphate buffer NA | 95% H2O/5% D2O | 20mM NA | 5.6 | ambient | 310 | |
| 6 | 2D TOCSY | 1mM MSTI, 20mM phosphate buffer NA | 95% H2O/5% D2O | 20mM NA | 5.6 | ambient | 320 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | DMX | 500 |
| 2 | Bruker | AVANCE | 700 |
| 3 | Bruker | AVANCE | 800 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing torsion angle dynamics energy minimization | XwinNMR | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 20 |
| Conformers Submitted Total Number | 15 |
| Representative Model | 1 (lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | XwinNMR | 2.6 | BRUKER |
| 2 | data analysis | XEASY | 1.3.13 | Bartels |
| 3 | structure solution | DYANA | 1.5 | Guntert |
| 4 | refinement | Discover | 98 | MSI |














