MINIMAL CONFORMATION OF THE ALPHA-CONOTOXIN IMI FOR THE ALPHA7 NEURONAL NICOTINIC ACETYLCHOLINE RECEPTOR RECOGNITION
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | NOESY | 5-6 mM alpha-ImI; 90 % H2O, 10 % D2O; 0.1 M potassium phosphate buffer pH 5.8 | 90 % H2O, 10 % D2O; 0.1 M potassium phosphate buffer pH 5.8 | 0.1 | 5.8 | ambient | 278 | |
| 2 | DQF-COSY | 5-6 mM alpha-ImI; 90 % H2O, 10 % D2O; 0.1 M potassium phosphate buffer pH 5.8 | 90 % H2O, 10 % D2O; 0.1 M potassium phosphate buffer pH 5.8 | 0.1 | 5.8 | ambient | 278 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | DRX | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| The structures were generated using the force fields parallhdg.pro and CHARMM22 of X-PLOR. | XwinNMR | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the least restraint violations,structures with the lowest energy |
| Conformers Calculated Total Number | 60 |
| Conformers Submitted Total Number | 30 |
| Representative Model | 7 (closest to the average) |
| 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 | 2.5 | Bruker |
| 2 | data analysis | Gifa | 4.22 | Delsuc |
| 3 | refinement | X-PLOR | 3.851 | Brunger |
