2JNI
Spatial structure of antimicrobial peptide arenicin-2 in aqueous solution
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D 1H-1H TOCSY | 0.6 mM arenicin-2, 90% H2O, 10% D2O | 90% H2O/10% D2O | 0 | 3.3 | ambient | 288 | |
2 | 2D DQF-COSY | 0.6 mM arenicin-2, 90% H2O, 10% D2O | 90% H2O/10% D2O | 0 | 3.3 | ambient | 288 | |
3 | 2D 1H-1H NOESY | 0.6 mM arenicin-2, 90% H2O, 10% D2O | 90% H2O/10% D2O | 0 | 3.3 | ambient | 288 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DRX | 500 |
2 | Varian | UNITY | 600 |
NMR Refinement | ||
---|---|---|
Method | Details | Software |
simulated annealing | XEASY |
NMR Ensemble Information | |
---|---|
Conformer Selection Criteria | structures with the least restraint violations |
Conformers Calculated Total Number | 100 |
Conformers Submitted Total Number | 20 |
Representative Model | 1 (fewest violations) |
Computation: NMR Software | ||||
---|---|---|---|---|
# | Classification | Version | Software Name | Author |
1 | chemical shift assignment | XEASY | Bartels et al. | |
2 | peak picking | XEASY | Bartels et al. | |
3 | collection | TopSpin | Bruker Biospin | |
4 | data analysis | TopSpin | Bruker Biospin | |
5 | processing | TopSpin | Bruker Biospin | |
6 | structure solution | CYANA | 2.1 | Guntert, Mumenthaler and Wuthrich |
7 | collection | VNMR | Varian | |
8 | data analysis | VNMR | Varian | |
9 | refinement | CYANA | 2.1 | Guntert, Mumenthaler and Wuthrich |