NMR STRUCTURE WITH TIGHTLY BOUND WATER MOLECULES OF CYTOTOXIN II (CARDIOTOXIN) FROM NAJA NAJA OXIANA IN AQUEOUS SOLUTION (MAJOR FORM).
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | COSY | 90% WATER/10% D2O; 100% D2O | 5.5 | 303 | ||||
| 2 | TOCSY | 90% WATER/10% D2O; 100% D2O | 5.5 | 303 | ||||
| 3 | NOESY | 90% WATER/10% D2O; 100% D2O | 5.5 | 303 | ||||
| 4 | ROESY | 90% WATER/10% D2O; 100% D2O | 5.5 | 303 | ||||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | UNITY-600 | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| SIMULATED ANNEALING BY MOLECULAR DYNAMICS IN TORSION ANGLE SPACE | THE RESTRAINED REFINMENT WAS MADE IN VACUUM AND ONLY FOR PROTEIN SIDE CHAINS. | FANTOM |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | LEAST RESTRAINT VIOLATION (TARGET FUNCTION VALUE) |
| Conformers Calculated Total Number | 220 |
| Conformers Submitted Total Number | 20 |
| Additional NMR Experimental Information | |
|---|---|
| Details | THE STRUCTURE WAS DETERMINED BY HOMONUCLEAR NMR SPECTROSCOPY, USING GRADIENT TECHNIQUE. ROESY EXPERIMENTS WERE HELD AT 290 AND 318K. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | refinement | FANTOM | 4.0 | FRACZKIEWICZ, MUMENTHALER, FREYBERG, SCHAUMANN |
| 2 | structure solution | VARIAN VNMR | VNMR | |
| 3 | structure solution | XEASY | ||
| 4 | structure solution | DYANA | ||
