2DCW
The solution structure of horseshoe crab antimicrobial peptide tachystatin b with the inhibitory cystine-knot motif
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | DQF-COSY | 0.73mM tachystatin B; 90% H2O, 10% D2O; pH 3.5 unbuffered | 90% H2O/10% D2O | 3.5 | ambient | 298 | ||
2 | 2D TOCSY | 0.73mM tachystatin B; 90% H2O, 10% D2O; pH 3.5 unbuffered | 90% H2O/10% D2O | 3.5 | ambient | 298 | ||
3 | 2D NOESY | 0.73mM tachystatin B; 90% H2O, 10% D2O; pH 3.5 unbuffered | 90% H2O/10% D2O | 3.5 | ambient | 298 | ||
4 | DQF-COSY | 0.73mM tachystatin B; 100% D2O; pH 3.5 unbuffered | 100% D2O | 3.5 | ambient | 298 | ||
5 | 2D TOCSY | 0.73mM tachystatin B; 100% D2O; pH 3.5 unbuffered | 100% D2O | 3.5 | ambient | 298 | ||
6 | 2D NOESY | 0.73mM tachystatin B; 100% D2O; pH 3.5 unbuffered | 100% D2O | 3.5 | ambient | 298 |
NMR Spectrometer Information | |||
---|---|---|---|
Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | AVANCE | 800 |
2 | Bruker | AVANCE | 600 |
NMR Refinement | ||
---|---|---|
Method | Details | Software |
distance geometry, simulated annealing | CNS |
NMR Ensemble Information | |
---|---|
Conformer Selection Criteria | structures with the lowest energy |
Conformers Calculated Total Number | 100 |
Conformers Submitted Total Number | 20 |
Representative Model | 1 (lowest energy) |
Computation: NMR Software | ||||
---|---|---|---|---|
# | Classification | Version | Software Name | Author |
1 | structure solution | CNS | 1.1 | |
2 | data analysis | NMRPipe | 2.3 | Delaglio |
3 | refinement | CNS | 1.1 |