Refined structure of peptaibol zervamicin IIB in methanol solution from trans-hydrogen bond J couplings
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | LONG RANGE 2D-HNCO | 4MM U-15N-13C ZRV-IIB, METHANOL (CD3OH) PH 6.2 | 0 | 6.2 | 1 atm | 305 | ||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| SIMULATED ANNEALING, TORSION ANGLE DYNAMICS, ENERGY MINIMISATION | STRUCTURE WAS REFINED USING ADDITIONAL 22/22 (UPPER/LOWER) RESTRAINTS FOR HYDROGEN BONDS. REFINEMENT WAS DONE IN ECEPP/2 FORCE FIELD USING IMPLICIT SOLVENT MODEL | FANTOM 4.0 |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | STRUCTURES WITH THE LEAST RESTRAINT VIOLATIONS, STRUCTURES WITH THE LOWEST ENERGY,TARGET FUNCTION |
| Conformers Calculated Total Number | 1000 |
| Conformers Submitted Total Number | 24 |
| Representative Model | 1 (lowest energy) |
| Additional NMR Experimental Information | |
|---|---|
| Details | THIS STRUCTURE IS A REFINED STRUCTURE OF PREVIOUS DEPOSITION (1DLZ) ON THE BASIS OF HYDROGEN BOND RESTRAINTS, DETERMINED EXPERIMENTALY. INCLUDING RESTRAINTS FOR OBSERVED BIFURCATED HYDROGEN BOND. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | refinement | FANTOM 4.0 | VON FREYBERG | |
| 2 | structure solution | XWINNMR 2.6 | ||
| 3 | structure solution | XEASY X | ||
| 4 | structure solution | DYANA 1.5 | ||
