2LZI
High resolution NMR structure of the theta-defensin HTD-2 (retrocyclin 2)
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 | 1.0 mM HTD-2-1 | 90% H2O/10% D2O | 5.0 | ambient | 298 | ||
2 | 2D 1H-1H NOESY | 1.0 mM HTD-2-1 | 90% H2O/10% D2O | 5.0 | ambient | 298 | ||
3 | 2D 1H-13C HSQC | 1.0 mM HTD-2-2 | 100% D2O | 5.0 | ambient | 298 | ||
4 | 2D DQF-COSY | 1.0 mM HTD-2-1 | 90% H2O/10% D2O | 5.0 | ambient | 298 | ||
5 | 2D 1H-1H ECOSY | 1.0 mM HTD-2-2 | 100% D2O | 5.0 | ambient | 298 | ||
6 | 2D 1H-15N HSQC | 1.0 mM HTD-2-1 | 90% H2O/10% D2O | 5.0 | ambient | 298 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | AVANCE | 500 |
2 | Bruker | AVANCE | 600 |
3 | Bruker | AVANCE | 900 |
NMR Refinement | ||
---|---|---|
Method | Details | Software |
simulated annealing, torsion angle dynamics | Structures were calculated using the scripts from the RECOORD database. | Sparky |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the lowest energy |
Conformers Calculated Total Number | 50 |
Conformers Submitted Total Number | 20 |
Representative Model | 1 (lowest energy) |
Computation: NMR Software | ||||
---|---|---|---|---|
# | Classification | Version | Software Name | Author |
1 | data analysis | Sparky | Goddard | |
2 | chemical shift assignment | Sparky | Goddard | |
3 | peak picking | Sparky | Goddard | |
4 | collection | TopSpin | 2.1 | Bruker Biospin |
5 | processing | TopSpin | 2.1 | Bruker Biospin |
6 | structure solution | CYANA | 3.0 | Guntert, Mumenthaler and Wuthrich |
7 | refinement | CNS | 2.1 |