2D46
Solution Structure of the Human Beta4a-A Domain
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 3D_15N-separated_NOESY | 3mM beta4a A domain, uniformly 15N and 13C labeled; 50mM sodium phosphate, 150mM NaCl, 0.1mM NaN3 | 90% H2O/10% D2O | 150mM NaCl | 5.5 | ambient | 277 | |
| 2 | 3D_13C-separated_NOESY | 3mM beta4a A domain, uniformly 15N and 13C labeled; 50mM sodium phosphate, 150mM NaCl, 0.1mM NaN3 | 90% H2O/10% D2O | 150mM NaCl | 5.5 | ambient | 277 | |
| 3 | HNHA | 3mM beta4a A domain, uniformly 15N and 13C labeled; 50mM sodium phosphate, 150mM NaCl, 0.1mM NaN3 | 90% H2O/10% D2O | 150mM NaCl | 5.5 | ambient | 277 | |
| 4 | 2D TOCSY | 3mM beta4a A domain, uniformly 15N and 13C labeled; 50mM sodium phosphate, 150mM NaCl, 0.1mM NaN3 | 90% H2O/10% D2O | 150mM NaCl | 5.5 | ambient | 277 | |
| 5 | 2D NOESY | 3mM beta4a A domain, uniformly 15N and 13C labeled; 50mM sodium phosphate, 150mM NaCl, 0.1mM NaN3 | 90% H2O/10% D2O | 150mM NaCl | 5.5 | ambient | 277 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | INOVA | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | A total of 1213 structural restraints were used to calculate determine the final 15 representative solution structures of the beta4a A domain. 963 NOE derived distance constraints were utilized in the calculation, of which 472 were intra-residue, 196 sequential, 87 medium-range (4<|i-j|>1) and 208 long-range (|i-j|≥4), providing for an average total of 15.8 NOE constraints/residue. | NMRPipe |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 15 |
| Conformers Submitted Total Number | 1 |
| Representative Model | 1 (closest to the average) |
| Additional NMR Experimental Information | |
|---|---|
| Details | The structure was determined using triple-resonance NMR spectroscopic techniques. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | processing | NMRPipe | 4.1 | Delaglio, F. |
| 2 | data analysis | NMRView | 5.0.4 | Johnson, B. |
| 3 | data analysis | ANSIG | Ansig for Windows | Helgstrand |
| 4 | structure solution | CNS | 1.1 | Brunger, T. |
| 5 | refinement | CNS | 1.1 | Brunger, T. |
