A biocompatible backbone modification? - Structure and dynamics of a triazole-linked DNA duplex
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D DQF-COSY | 3 mM DNA strand I, 3 mM DNA strand II, 99,98 % [U-100% 2H] D2O, 150 mM sodium chloride, 10 mM sodium phosphate | 100% D2O | 150 | 6.5 | ambient | 298 | |
| 2 | 2D 1H-1H NOESY | 3 mM DNA strand I, 3 mM DNA strand II, 99,98 % [U-100% 2H] D2O, 150 mM sodium chloride, 10 mM sodium phosphate | 100% D2O | 150 | 6.5 | ambient | 298 | |
| 3 | 2D 1H-1H TOCSY | 3 mM DNA strand I, 3 mM DNA strand II, 99,98 % [U-100% 2H] D2O, 150 mM sodium chloride, 10 mM sodium phosphate | 100% D2O | 150 | 6.5 | ambient | 298 | |
| 4 | 2D 1H-13C HMQC | 3 mM DNA strand I, 3 mM DNA strand II, 99,98 % [U-100% 2H] D2O, 150 mM sodium chloride, 10 mM sodium phosphate | 100% D2O | 150 | 6.5 | ambient | 298 | |
| 5 | 2D 1H-13C HMQC | 3 mM DNA strand I, 3 mM DNA strand II, 99,98 % [U-100% 2H] D2O, 20 mg/ml Pf1 phage, 150 mM sodium chloride, 10 mM sodium phosphate | 100% D2O | 150 | 6.5 | ambient | 298 | |
| 6 | 2D 1H-1H NOESY | 3 mM DNA strand I, 3 mM DNA strand II, 10 % [U-99% 2H] D2O, 90 % H2O, 150 mM sodium chloride, 10 mM sodium phosphate | 90% H2O/10% D2O | 150 | 6.5 | ambient | 298 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| torsion angle dynamics | 20000K | CARA |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 100 |
| Conformers Submitted Total Number | 11 |
| Representative Model | 1 (minimized average structure) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | chemical shift assignment | CARA | 1.84 | Keller and Wuthrich |
| 2 | peak picking | CARA | 1.84 | Keller and Wuthrich |
| 3 | collection | TopSpin | 2.1 | Bruker Biospin |
| 4 | processing | TopSpin | 2.1 | Bruker Biospin |
| 5 | refinement | X-PLOR NIH | 2.20 | Schwieters, Kuszewski, Tjandra and Clore |
| 6 | structure solution | X-PLOR NIH | 2.20 | Schwieters, Kuszewski, Tjandra and Clore |














