1I2V
NMR SOLUTION STRUCTURES OF AN ANTIFUNGAL AND ANTIBACTERIAL MUTANT OF HELIOMICIN
SOLUTION NMR
NMR Experiment | ||||||||
---|---|---|---|---|---|---|---|---|
Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D 1H DQF-COSY; TQF-COSY; TOCSY; NOESY | 4 mM heliomicin-LL ; 40mM sodium acetate buffer | 90% H2O/10% D2O | 40mM sodium acetate buffer | 4.3 | ambient | 293 |
NMR Spectrometer Information | |||
---|---|---|---|
Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | AMX | 500 |
NMR Refinement | ||
---|---|---|
Method | Details | Software |
torsion angle dynamics (DYANA) and energy minimisation (XPLOR) | the structures are based on a total of 120 intra-residue, 172 sequential, 108 medium range, 190 long range NOE-derived distance restraints, 9 distances restraints corresponding to the 3 disulfide bridge, 100 dihedral angle restraints, and 13 distance restraints for hydrogen bonds | UXNMR |
NMR Ensemble Information | |
---|---|
Conformer Selection Criteria | structures with acceptable covalent geometry, structures with favorable non-bond energy, structures with the least restraint violations, structures with the lowest energy, target function |
Conformers Calculated Total Number | 40 |
Conformers Submitted Total Number | 18 |
Representative Model | 1 (lowest target function) |
Additional NMR Experimental Information | |
---|---|
Details | This structure was determined using standard 2D homonuclear techniques. |
Computation: NMR Software | ||||
---|---|---|---|---|
# | Classification | Version | Software Name | Author |
1 | collection | UXNMR | ||
2 | data analysis | XEASY | Bartels | |
3 | refinement | DYANA | Guentert | |
4 | refinement | X-PLOR | Brunger |