1VB8
solution structure of vhr1, the first cyclotide from root tissue
SOLUTION NMR
NMR Experiment | ||||||||
---|---|---|---|---|---|---|---|---|
Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 1mM vhr1 | 70% H2O, 10% D2O, 20% acetonitrile-d3 | 6 | ambient | 298 | ||
2 | 2D TOCSY | 1mM vhr1 | 70% H2O, 10% D2O, 20% acetonitrile-d3 | 6 | ambient | 298 | ||
3 | DQF-COSY | 1mM vhr1 | 70% H2O, 10% D2O, 20% acetonitrile-d3 | 6 | ambient | 298 | ||
4 | TQF-COSY | 1mM vhr1 | 70% H2O, 10% D2O, 20% acetonitrile-d3 | 6 | ambient | 310 | ||
5 | 2D TOCSY | 1mM vhr1 | 70% H2O, 10% D2O, 20% acetonitrile-d3 | 6 | ambient | 310 | ||
6 | DQF-COSY | 1mM vhr1 | 70% H2O, 10% D2O, 20% acetonitrile-d3 | 6 | ambient | 310 | ||
7 | 2D NOESY | 1mM vhr1 | 80% D2O, 20% acetonitrile-d3 | 6 | ambient | 298 | ||
8 | 2D TOCSY | 1mM vhr1 | 80% D2O, 20% acetonitrile-d3 | 6 | ambient | 298 | ||
9 | TQF-COSY | 1mM vhr1 | 80% D2O, 20% acetonitrile-d3 | 6 | ambient | 298 | ||
10 | DQF-COSY | 1mM vhr1 | 80% D2O, 20% acetonitrile-d3 | 6 | ambient | 298 |
NMR Spectrometer Information | |||
---|---|---|---|
Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DMX | 750 |
NMR Refinement | ||
---|---|---|
Method | Details | Software |
simulated annealing | final energy minimization in water shell | XwinNMR |
NMR Ensemble Information | |
---|---|
Conformer Selection Criteria | structures with the least restraint violations, structures with the lowest energy |
Conformers Calculated Total Number | 50 |
Conformers Submitted Total Number | 20 |
Computation: NMR Software | ||||
---|---|---|---|---|
# | Classification | Version | Software Name | Author |
1 | collection | XwinNMR | Bruker | |
2 | data analysis | GLXCC | Cieslar et al. | |
3 | structure solution | X-PLOR | 3.851 | Brunger |
4 | refinement | CNS | 1.0 |