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MOLECULAR TOPOLOGY OF POLYCYCLIC AROMATIC CARCINOGENS DETERMINES DNA ADDUCT CONFORMATION: A LINK TO TUMORIGENIC ACTIVITY
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