Solution Structure of C-terminal Domain from Trypanosoma cruzi Poly(A)-Binding Protein
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D NOESY | 2mM TcPABC, unlabelled, 50mM phosphate buffer, 150mM NaCl, 1mM NaN3, pH 6.3, 90% H2O, 10% D2O | 90% H2O/10% D2O | 50mM Phosphate, 150mM NaCl | 6.3 | Ambient | 303 | |
| 2 | 3D_15N-separated_NOESY | 2mM TcPABC U-15N, 50mM phosphate buffer, 150mM NaCl, 1mM NaN3, pH 6.3, 90% H2O, 10% D2O | 90% H2O/10% D2O | 50mM Phosphate, 150mM NaCl | 6.3 | Ambient | 303 | |
| 3 | HNHA | 2mM TcPABC U-15N, 50mM phosphate buffer, 150mM NaCl, 1mM NaN3, pH 6.3, 90% H2O, 10% D2O | 90% H2O/10% D2O | 50mM Phosphate, 150mM NaCl | 6.3 | Ambient | 303 | |
| 4 | 3D_13C-separated_NOESY | 2mM TcPABC U-15N,13C, 50mM phosphate buffer, 150mM NaCl, 1mM NaN3, pH 6.3 | 100% D20 | 50mM Phosphate, 150mM NaCl | 6.3 | Ambient | 303 | |
| 5 | IPAP-HSQC | 2mM TcPABC U-15N, 50mM phosphate buffer, 150mM NaCl, 1mM NaN3, 18mg/ml Pf1 phage, pH 6.3, 90% H2O, 10% D2O | 90% H2O/10% D2O | 50mM Phosphate, 150mM NaCl | 6.3 | Ambient | 303 | |
| 6 | 2D NOESY | 2mM TcPABC, unlabelled, 50mM phosphate buffer, 150mM NaCl, 1mM NaN3, pH 6.3 | 100% D20 | 50mM Phosphate, 150mM NaCl | 6.3 | Ambient | 303 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | DRX | 500 |
| 2 | Varian | UNITYPLUS | 800 |
| 3 | Bruker | AVANCE | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | The structures are based on a total of 1170 restraints: 974 are NOE-derived distance constraints, 78 dihedral angle restraints,49 distance restraints from hydrogen bonds and 69 15N-1H residual dipolar couplings | XwinNMR |
| 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 | 8 (lowest energy) |
| Additional NMR Experimental Information | |
|---|---|
| Details | This structure was determined using standard 2D homonuclear and 3D heteronuclear techniques. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | XwinNMR | 2.1 | Bruker BioSpin |
| 2 | processing | Gifa | 4.31 | Delsuc |
| 3 | data analysis | XEASY | 1.3.13 | Wuthrich |
| 4 | refinement | CNS | 1.1 | Brunger |
| 5 | structure solution | ARIA | 1.1 | Nilges |














