2FEK
Structure of a protein tyrosine phosphatase
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 3D_13C-separated_NOESY | ~1mM WZB U-15N, 13C; 50mM sodium phosphate, 50mM NaCl buffer; 25mM DTT; 5mM EDTA; pH 6 | 90% H2O/10% D2O | 100mM | 6 | ambient | 298 | |
| 2 | 3D_15N-separated_NOESY | ~1mM WZB U-15N; 50mM sodium phosphate, 50mM NaCl buffer; 25mM DTT; 5mM EDTA; pH 6 | 90% H2O/10% D2O | 100mM | 6 | ambient | 298 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 800 |
| 2 | Bruker | AVANCE | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| 200 structures were generated in CYANA. The 100 structures with lowest energy were further refined in AMBER7. The 20 lowest energy structures were finally selected. | A total of 4689 restraints were used. Included are 1630 ambiguous and 2640 unambiguous NOE-derived distances, 100 hydrogen bond restraints, 190 backbone dihedral angles, 32 side-chain chi1 and 97 1H-15N residual dipolar couplings values. | XwinNMR |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with lowest energy |
| Conformers Calculated Total Number | 100 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (lowest energy) |
| Additional NMR Experimental Information | |
|---|---|
| Details | 97 1H-15N residual dipolar, measured in PEG/hexanol (5.5 wt%, molar ratio=0.92), were included in structure calculation. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | XwinNMR | 3.5 | Bruker |
| 2 | processing | NMRPipe | 1 | Delaglio |
| 3 | structure solution | CYANA | 1.2 | Guentert |
| 4 | refinement | Amber | 7 | Case |
| 5 | data analysis | NMRView | 5 | Blevins |
