NMR Structure of designed protein, Chignolin, consisting of only ten amino acids (Ensembles)
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D NOESY | 2mM CHIGNOLIN | 95% H2O/5% D2O | 20mM sodium phosohate | 5.5 | AMBIENT | 277 | |
| 2 | 2D ROESY | 2mM CHIGNOLIN | 95% H2O/5% D2O | 20mM sodium phosohate | 5.5 | AMBIENT | 277 | |
| 3 | DQF-COSY | 2mM CHIGNOLIN | 95% H2O/5% D2O | 20mM sodium phosohate | 5.5 | AMBIENT | 277 | |
| 4 | 2D TOCSY | 2mM CHIGNOLIN | 95% H2O/5% D2O | 20mM sodium phosohate | 5.5 | AMBIENT | 277 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AMX | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | The structures are based on a total of 185 restraints, 172 are NOE-derived distance constraints, 12 dihedral angle restraints,1 distance restraints from hydrogen bonds. | XwinNMR |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 50 |
| Conformers Submitted Total Number | 18 |
| Representative Model | 1 (lowest energy) |
| Additional NMR Experimental Information | |
|---|---|
| Details | This structure was determined using standard 2D Homonuclear techniques. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | XwinNMR | 2.6 | |
| 2 | processing | Felix | 2000 | |
| 3 | structure solution | X-PLOR | 3.1 | |
| 4 | refinement | X-PLOR | 3.1 | |
