Solution structure of the C4A/C41A variant of the Nicotiana alata proteinase inhibitor T1
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D NOESY | 1mM C4A/C41A-T1 | 90% H2O/10% D2O | 1mM | 5.8 | ambient | 313 | |
| 2 | 2D TOCSY | 1mM C4A/C41A-T1 | 90% H2O/10% D2O | 1mM | 5.8 | ambient | 313 | |
| 3 | DQF-COSY | 1mM C4A/C41A-T1 | 90% H2O/10% D2O | 1mM | 5.8 | ambient | 313 | |
| 4 | 2D NOESY | 1mM C4A/C41A-T1 | 99% D2O | 1mM | 5.8 | ambient | 313 | |
| 5 | 2D TOCSY | 1mM C4A/C41A-T1 | 99% D2O | 1mM | 5.8 | ambient | 313 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | ARX | 500 |
| 2 | Bruker | DMX | 750 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing, torsion angle dynamics, explicit inclusion of water molecules (Linge & Nilges, 1999) | 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 | 11 (lowest energy) |
| Additional NMR Experimental Information | |
|---|---|
| Details | This structure was determined using standard 2D homonuclear techniques. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | XwinNMR | 3.5 | Bruker |
| 2 | processing | XwinNMR | 3.5 | Bruker |
| 3 | data analysis | ccnmr/glxcc | n.a. | Cieslar, Holak, Oschkinat, 1990 |
| 4 | refinement | CNS | 1.1 | Brunger |
