SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 3D_15N-separated_NOESY | U-13C/15N; 20mM phosphate buffer; 0.5mM EDTA; 15mM DTT; 0.3% NaN3; 90% H2O, 10% D2O | 90% H2O/10% D2O | 20 mM | 6.5 | 1 atm | 298 | |
| 2 | 3D_13C-separated_NOESY | U-13C/15N; 20mM phosphate buffer; 0.5mM EDTA; 15mM DTT; 0.3% NaN3; 90% H2O, 10% D2O | 90% H2O/10% D2O | 20 mM | 6.5 | 1 atm | 298 | |
| 3 | 3D_13C-separated_NOESY | U-13C/15N; 20mM phosphate buffer; 0.5mM EDTA; 15mM DTT; NaN3; 99.6% D2O | 99.6% D2O | 20 mM | 6.5 | 1 atm | 298 | |
| 4 | HNHA | U-13C/15N; 20mM phosphate buffer; 0.5mM EDTA; 15mM DTT; 0.3% NaN3; 90% H2O, 10% D2O | 90% H2O/10% D2O | 20 mM | 6.5 | 1 atm | 298 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | INOVA | 500 |
| 2 | Varian | INOVA | 600 |
| 3 | Varian | INOVA | 800 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| The structures were calculated with 1515 NOE, 129 phi, 100 psi, 3 chi and 64 hydrogen bond restraints and 29 stereospecific assignments | VNMR | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with acceptable covalent geometry,structures with the least restraint violations,structures with the lowest energy |
| Conformers Calculated Total Number | 300 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (fewest violations,lowest energy) |
| Additional NMR Experimental Information | |
|---|---|
| Details | amides involved in hydrogen bonds were identified through H/D exchange |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | VNMR | 3.1c | Gray, G. |
| 2 | processing | NMRPipe | 2.3 | Delaglio, F. |
| 3 | data analysis | NMRView | 5.2.2 | Johnson, B. |
| 4 | structure solution | CYANA | 2.1 | Guentert, P. |
| 5 | refinement | CNS | 1.1 | Brunger, A.T. |














