NMR Structure of a D,L Alternating pentadecamer of norleucine: double antiparallel beta-helix
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | DQF-COSY | 4.7 mM | Chloroform-d | ambient | 303 | |||
| 2 | 2D TOCSY | 4.7 mM | Chloroform-d | ambient | 303 | |||
| 3 | 2D ROESY | 4.7 mM | Chloroform-d | ambient | 303 | |||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | UNITY | 400 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| molecular dynamics | Structures based on a total of 68 restraints: 28 interchain distance constraints and 40 intrachain distance constraints | Discover |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 50 |
| Conformers Submitted Total Number | 5 |
| Representative Model | 1 (lowest energy) |
| Additional NMR Experimental Information | |
|---|---|
| Details | This structure was determined using standard 2D homonuclear techniques |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | structure solution | Discover | 2.9.7 | BIOSYM |
| 2 | data analysis | VNMR | VARIAN | |
| 3 | refinement | Discover | 2.9.7 | BIOSYM |
