STRUCTURAL CHANGES ACCOMPANYING PH-INDUCED DISSOCIATION OF THE B-LACTOGLOBULIN DIMER
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 3D_13C-separated_NOESY | 1mM B-lactoglobuline-15N,13C; 50mM phosphate buffer; 90% H2O, 10% D2O | 90% H2O/10% D2O | not known | 2.7 | ambient | 310 | |
| 2 | 3D_15N-separated_NOESY | 1mM B-lactoglobuline-15N,13C; 50mM phosphate buffer; 90% H2O, 10% D2O | 90% H2O/10% D2O | not known | 2.7 | ambient | 310 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | INOVA | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | the structures are based on a total of 2715 restraints, out of which 77 are hydrogen bonds and 110 are torsion angles | Felix |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | lowest total energy |
| Conformers Calculated Total Number | 60 |
| Conformers Submitted Total Number | 21 |
| Representative Model | 14 (closest to the average) |
| Additional NMR Experimental Information | |
|---|---|
| Details | The structure was determined using triple resonance NMR spectra |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | processing | Felix | 97.0 | Molecular Simulations |
| 2 | processing | XEASY | 1995 | Bartels el al. |
| 3 | structure solution | X-PLOR | ARIA | Nilges el al. |
| 4 | structure solution | CNS | 0.9 | Brunger et al. |
| 5 | refinement | CNS | 0.9 | Brunger et al. |
