NMR STRUCTURE OF THE 2-AMINO-1-METHYL-6-PHENYLIMIDAZO[4,5-B]PYRIDINE (PHIP) C8-DEOXYGUANOSINE ADDUCT IN DUPLEX DNA
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D NOESY | 9.1 mg of [PhIP]dG.dC 11mer duplex in 600 ul of 10 mM Na2PO4 buffer | 100% D2O | 0.1 M NaCl | 7.00 | ambient | 298 | |
| 2 | 2D NOESY | 9.1 mg of [PhIP]dG.dC 11mer duplex in 600 ul of 10 mM Na2PO4 buffer | 100% D2O | 0.1 M NaCl | 7.00 | ambient | 293 | |
| 3 | 2D NOESY | 9.1 mg of [PhIP]dG.dC 11mer duplex in 600 ul of 10 mM Na2PO4 buffer | 90% H2O/10% D2O | 0.1 M NaCl | 7.00 | ambient | 274 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | INOVA | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| restrainted torsion angle minimizations | A total of 266 NOE-derived distance constraints were used in the calculations | VNMR |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 48 |
| Conformers Submitted Total Number | 6 |
| 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 | collection | VNMR | 6.0 | Varian |
| 2 | data analysis | Felix | 97 | MSI |
| 3 | structure solution | DUPLEX | none | Hingerty and Broyde |
| 4 | refinement | DUPLEX | none | Hingerty and Broyde |
