Three dimensional solution structure of the R29A MUTANT of sodium channels inhibitor HAINANTOXIN-IV by 2D 1H-NMR
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | NOESY | 5.0mM | 20mM deuterium acetic acid BU, 90% H2O, 10% D2O | 20 | 4.00 | 1 atm | 295 | |
| 2 | DQF-COSY | 5.0mM | 20mM deuterium acetic acid BU, 90% H2O, 10% D2O | 20 | 4.00 | 1 atm | 295 | |
| 3 | TOCSY | 5.0mM | 20mM deuterium acetic acid BU, 90% H2O, 10% D2O | 20 | 4.00 | 1 atm | 295 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | DRX | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | the structures are based on 366 NOE- derived distance constraints, 15 dihedral angle restraints, 9 fake distance restraints from disulfide bonds and 12 hydrogen- bond constrains. | X-PLOR |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 50 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 13 (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 | refinement | X-PLOR | 3.851 | |
| 2 | processing | Felix | 98.0 | |
