The NMR structure of noursin, a tricyclic ribosomal peptide containing a histidine-to-butyrine crosslink
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D 1H-1H COSY | 5.0 mM noursin | CD3OH | 0 | 7.0 | 1 atm | 298 | Bruker AVANCE III 600 |
| 2 | 2D 1H-13C HSQC | 5.0 mM noursin | CD3OH | 0 | 7.0 | 1 atm | 298 | Bruker AVANCE III 600 |
| 3 | 2D 1H-15N HSQC | 5.0 mM noursin | CD3OH | 0 | 7.0 | 1 atm | 298 | Bruker AVANCE III 600 |
| 4 | 2D 1H-1H NOESY | 5.0 mM noursin | CD3OH | 0 | 7.0 | 1 atm | 298 | Bruker AVANCE III 600 |
| 5 | 2D 1H-1H TOCSY | 5.0 mM noursin | CD3OH | 0 | 7.0 | 1 atm | 298 | Bruker AVANCE III 600 |
| 6 | 2D 1H-13C HMBC | 5.0 mM noursin | CD3OH | 0 | 7.0 | 1 atm | 298 | Bruker AVANCE III 600 |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE III | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| molecular dynamics | X-PLOR NIH | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 100 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 1 (lowest energy) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | TopSpin | 4.0.9 | Bruker Biospin |
| 3 | processing | TopSpin | Bruker Biospin | |
| 2 | chemical shift assignment | NMRFAM-SPARKY | 1.470 | Lee W, Tonelli M, Markley JL |
| 4 | structure calculation | X-PLOR NIH | Schwieters, Kuszewski, Tjandra and Clore | |
| 5 | refinement | X-PLOR NIH | Schwieters, Kuszewski, Tjandra and Clore | |
