2LXG
NMR solution structure of Mu-conotoxin KIIIA
SOLUTION NMR
NMR Experiment | ||||||||
---|---|---|---|---|---|---|---|---|
Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D 1H-15N HSQC | 2.6 mM entity-1 | 94% H2O/6% D2O | 2.9 | 283 | |||
2 | 2D 1H-13C HSQC | 2.6 mM entity-1 | 94% H2O/6% D2O | 2.9 | ambient | 278 | ||
3 | 2D 1H-1H TOCSY | 2.6 mM entity-1 | 94% H2O/6% D2O | 4.8 | 278 | |||
4 | 2D DQF-COSY | 2.6 mM entity-1 | 94% H2O/6% D2O | 4.8 | 278 | |||
5 | 2D 1H-1H NOESY | 2.6 mM entity-1 | 94% H2O/6% D2O | 4.8 | 278 | |||
6 | 2D 1H-1H TOCSY | 2.6 mM entity-1 | 94% H2O/6% D2O | 2.9 | ambient | 278 | ||
7 | 2D 1H-1H NOESY | 2.6 mM entity-1 | 94% H2O/6% D2O | 2.9 | ambient | 278 | ||
8 | 2D 1H-1H TOCSY | 2.3 mM entity-2 | 100% D2O | 5.3 | 278 | |||
9 | 2D 1H-1H NOESY | 2.3 mM entity-2 | 100% D2O | 5.3 | 278 |
NMR Spectrometer Information | |||
---|---|---|---|
Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DRX | 600 |
2 | Bruker | AVANCE | 500 |
NMR Refinement | ||
---|---|---|
Method | Details | Software |
simulated annealing | TopSpin |
NMR Ensemble Information | |
---|---|
Conformer Selection Criteria | structures with the lowest energy |
Conformers Calculated Total Number | 200 |
Conformers Submitted Total Number | 20 |
Representative Model | 1 (closest to the average) |
Computation: NMR Software | ||||
---|---|---|---|---|
# | Classification | Version | Software Name | Author |
1 | collection | TopSpin | Bruker Biospin | |
2 | processing | TopSpin | Bruker Biospin | |
3 | chemical shift assignment | XEASY | Bartels et al. | |
4 | peak picking | XEASY | Bartels et al. | |
5 | structure solution | CYANA | Guntert, Mumenthaler and Wuthrich | |
6 | geometry optimization | X-PLOR NIH | Schwieters, Kuszewski, Tjandra and Clore | |
7 | refinement | X-PLOR NIH | Schwieters, Kuszewski, Tjandra and Clore | |
8 | data analysis | ProcheckNMR | Laskowski and MacArthur |