MOLECULAR TOPOLOGY OF POLYCYCLIC AROMATIC CARCINOGENS DETERMINES DNA ADDUCT CONFORMATION: A LINK TO TUMORIGENIC ACTIVITY
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D NOESY | trans-anti-BPh (carcinogen) covalently bound to 11mer DNA duplex | aqueous solution with 100 mM NaCl | 0.10 | 6.5 | 1 atm | 277 | |
| 2 | P-COSY | trans-anti-BPh (carcinogen) covalently bound to 11mer DNA duplex | aqueous solution with 100 mM NaCl | 0.10 | 6.5 | 1 atm | 277 | |
| 3 | 1H-31P HSQC | trans-anti-BPh (carcinogen) covalently bound to 11mer DNA duplex | aqueous solution with 100 mM NaCl | 0.10 | 6.5 | 1 atm | 277 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | INOVA | 600 |
| 2 | Varian | INOVA | 500 |
| 3 | Varian | INOVA | 400 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| torsion angle dynamics, simulated annealing, relaxation matrix refinements, energe minimization | X-PLOR | |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | structures with the lowest energy |
| Conformers Calculated Total Number | 9 |
| Conformers Submitted Total Number | 7 |
| Representative Model | 1 (lowest energy) |
| Additional NMR Experimental Information | |
|---|---|
| Details | D2O experiments were run at 18 degree C, H2O experiments were run at 4 degree C |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | refinement | X-PLOR | 3.1 | Brunger, A. T. |
| 2 | collection | VNMR | 6.1 | Varian Associates Inc. |
| 3 | data analysis | Felix | felix2000 | MSI |
