SOLUTION STRUCTURE OF 2-(PYRIDO[1,2-E]PURIN-4-YL)AMINO-ETHANOL INTERCALATED IN THE DNA DUPLEX D(CGATCG)2
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D NOESY | 2 mM 2-(pyrido[1,2-e]purin-4-yl)amino-ethanol, 2mM d(CGATCG)2 160 mM KCl, 0.15 mM EDTA, 20 mM sodium phosphate | 90% H2O/10% D2O | 7 | ambient | 7 | ||
| 2 | 2D NOESY | 2 mM 2-(pyrido[1,2-e]purin-4-yl)amino-ethanol, 2mM d(CGATCG)2 160 mM KCl, 0.15 mM EDTA, 20 mM sodium phosphate | 100% D2O | 7 | ambient | 7 | ||
| 3 | DQF-COSY | 2 mM 2-(pyrido[1,2-e]purin-4-yl)amino-ethanol, 2mM d(CGATCG)2 160 mM KCl, 0.15 mM EDTA, 20 mM sodium phosphate | 90% H2O/10% D2O | |||||
| 4 | TOCSY | 2 mM 2-(pyrido[1,2-e]purin-4-yl)amino-ethanol, 2mM d(CGATCG)2 160 mM KCl, 0.15 mM EDTA, 20 mM sodium phosphate | 90% H2O/10% D2O | |||||
| 5 | 1H-1H CT COSY | 2 mM 2-(pyrido[1,2-e]purin-4-yl)amino-ethanol, 2mM d(CGATCG)2 160 mM KCl, 0.15 mM EDTA, 20 mM sodium phosphate | 90% H2O/10% D2O | |||||
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | INOVA | 800 |
| 2 | Bruker | AMX | 600 |
| 3 | Bruker | AMX | 400 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | calculation from randomized cartesian coordinates | VNMR |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | The submitted conformer models are the 22 structures with the lowest experimental energy |
| Conformers Calculated Total Number | 100 |
| Conformers Submitted Total Number | 22 |
| Representative Model | 12 (closest to the average) |
| Additional NMR Experimental Information | |
|---|---|
| Details | This structure was determined using standard 2D homonuclear techniques. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | VNMR | 6.A | |
| 2 | processing | Felix | ||
| 3 | data analysis | Insight | 97 | |
| 4 | structure solution | Discover | ||
| 5 | refinement | Discover | ||














