SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | NOESY | 4mM alpha-Bungarotoxin pH 5.79 at 288, 298, and 308 degrees K | 95% H2O/5% D2O | no buffers, pH adjusted w/HCl and NaOH | 5.79 | ambient | 298 | |
| 2 | DQF-COSY | 4mM alpha-Bungarotoxin pH 5.79 at 288, 298, and 308 degrees K | 95% H2O/5% D2O | no buffers, pH adjusted w/HCl and NaOH | 5.79 | ambient | 298 | |
| 3 | E-COSY | 4mM alpha-Bungarotoxin pH 5.79 | 99.9% D2O | no buffers, pH adjusted w/DCl and NaOD | 5.79 | ambient | 308 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | GE | GN | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| distance geometry, molecular dynamics, matrix relaxation | total number of restraints used: 657, Total number of NOE restraints: 588, Total number of dihedral angle restraints: 60, Used 9 hydrogen-bond restraints | MARDIGRAS |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the least restraint violations,structures with the lowest energy |
| Conformers Calculated Total Number | 20 |
| Conformers Submitted Total Number | 13 |
| Representative Model | 4 (fewest violations) |
| Additional NMR Experimental Information | |
|---|---|
| Details | This structure was determined using standard 2D homonuclear techniques. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | iterative matrix relaxation | MARDIGRAS | 2.0 | Borgias, B. A., and James, T. L. |
| 2 | structure solution | VEMBED | 1.0 | Kuntz, I. D., Thomason, J. F., and Oshiro, C. M. |
| 3 | refinement | GROMOS | 87 4D version | van Schaik, R. C., and van Gunsteren, W. F. |
