Structural insights into the cTAR DNA recognition by the HIV-1 Nucleocapsid protein: role of sugar deoxyriboses in the binding polarity of NC
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D 1H-1H NOESY | 1 mM HIV-1 nucleocapsid protein NCp7(11-55)-1, 1 mM DNA, 10 % D2O-3, 90 % H2O-4, 3 mM RZN-5 | 90% H2O/10% D2O | 6.5 | ambient | 298 | ||
| 2 | 2D 1H-1H COSY | 1 mM HIV-1 nucleocapsid protein NCp7(11-55)-1, 1 mM DNA, 10 % D2O-3, 90 % H2O-4, 3 mM RZN-5 | 90% H2O/10% D2O | 6.5 | ambient | 298 | ||
| 3 | 2D 1H-1H TOCSY | 1 mM HIV-1 nucleocapsid protein NCp7(11-55)-1, 1 mM DNA, 10 % D2O-3, 90 % H2O-4, 3 mM RZN-5 | 90% H2O/10% D2O | 6.5 | ambient | 298 | ||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| DGSA-distance geometry simulated annealing | X-PLOR NIH | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 50 |
| Conformers Submitted Total Number | 10 |
| Representative Model | 1 (lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | data analysis | X-PLOR NIH | Schwieters, Kuszewski, Tjandra and Clore | |
| 2 | refinement | X-PLOR NIH | Schwieters, Kuszewski, Tjandra and Clore | |
