SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D NOESY | 1-2mM Centrin unlabeled; 25mM Tris-d11, 5-10mM CaCl2, pH 7.0; 90% H2O, 10% D2O | 90% H2O/10% D2O | 5-10mM CaCl2 | 7 | ambient | 298 | |
| 2 | 3D 15N-NOESY-HSQC | 1-2mM Centrin U-15N; 25mM Tris-d11, 5-10mM CaCl2, pH 7.0; 90% H2O, 10% D2O | 90% H2O/10% D2O | 5-10mM CaCl2 | 7 | ambient | 298 | |
| 3 | 3D 13C-NOESY-HSQC | 1-2mM Centrin U-13C; 25mM Tris-d11, 5-10mM CaCl2, pH 7.0; 100% D2O | 100% D2O | 5-10mM CaCl2 | 7 | ambient | 298 | |
| 4 | 4D 13C-HMQC-NOESY-HMQC | 1-2mM Centrin U-13C; 25mM Tris-d11, 5-10mM CaCl2, pH 7.0; 100% D2O | 100% D2O | 5-10mM CaCl2 | 7 | ambient | 298 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | DRX | 600 |
| 2 | Bruker | DRX | 800 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| distance geometry simulated annealing | A total of 1248 experimentally derived NMR restraints (1108 NOE-based distance restraints, 24 hydrogen bond distance restraints, 116 backbone torsion angle restraints) were used in the structure calculations. | Felix |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the least restraint violations,structures with the lowest energy |
| Conformers Calculated Total Number | 50 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (fewest violations,lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | processing | Felix | 2000 | Accelrys |
| 2 | processing | SANE | 1 | Duggan, B.M. |
| 3 | structure solution | DYANA | 1.5 | Guntert P. |
| 4 | refinement | Amber | 7.0 | Pearlman, D.A. |
| 5 | collection | XwinNMR | 2.6 | Bruker |
