Solution Structure of the Oligomerization Domain of the Bacterial Chromatin-Structuring Protein H-NS
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 3D_15N-separated_NOESY | 15N labelled | 300 mM NaCl,20 mM potassium phosphate, 1 mM EDTA, at pH 7.0 | 300 mM NaCl | 7.0 | ambient | 298 | |
| 2 | 3D_13C-separated_NOESY | 15N,13C labelled | 300 mM NaCl,20 mM potassium phosphate, 1 mM EDTA, at pH 7.0 | 300 mM NaCl | 7.0 | ambient | 298 | |
| 3 | 3D 13CF1-filtered, F3-edited NOESY-HSQC | 14N,12C/15N,13C 1:1 mixed labelled chains | 300 mM NaCl,20 mM potassium phosphate, 1 mM EDTA, at pH 7.0 | 300 mM NaCl | 7.0 | ambient | 298 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | UNITYPLUS | 500 |
| 2 | Varian | UNITYPLUS | 600 |
| 3 | Bruker | AVANCE | 800 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| dynamical simulated annealing | The calculations were carried out using the PARALLHDGv5.1 parameter, with the non-bonded energy function of PROLSQ, modified to allow floating stereochemistry of prochiral centers | Azara |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the least restraint violations, structures with the lowest energy |
| Conformers Calculated Total Number | 100 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (lowest energy) |
| Additional NMR Experimental Information | |
|---|---|
| Details | Assignment was accomplished by using standard triple resonance techniques |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | processing | Azara | 2.6 | Boucher, W. |
| 2 | data analysis | ANSIG | 3.3 | Kraulis, P. |
| 3 | structure solution | CNS | 1.1 | Brunger, A.T. |
| 4 | refinement | CNS | 1.1 | Brunger, A.T. |














