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Solution structure of Crotonaldehyde-Derived N2-[3-Oxo-1(S)-methyl-propyl]-dG DNA Adduct in the 5'-CpG-3' Sequence
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D NOESY 1 mM in 0.25 mL;
10 mM Sodium phosphate buffer;
0.1 M NaCl; 50 uMNa2EDTA 99.996% D2O 0.1 M NaCl 9.3 1 atm 303 2 DQF-COSY 3 E-COSY
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE 800 2 Bruker AVANCE 600 3 Bruker AVANCE 500
NMR Refinement Method Details Software distance geometry simulated annealing molecular dynamics matrix relaxation and torsion angle 308 distance restraints, 90 sugar pucker restraints, 52 H-bonding restraints XwinNMR
NMR Ensemble Information Conformer Selection Criteria back calculated data agree with experimental NOESY spectrum Conformers Calculated Total Number 10 Conformers Submitted Total Number 1 Representative Model 10 (minimized average structure)
Additional NMR Experimental Information Details This structure was determined using standard 2D homonuclear techniques.
Computation: NMR Software # Classification Version Software Name Author 1 collection XwinNMR 3.5 Bruker 2 processing NMRPipe 2.3 Delaglio F et al. 3 data analysis Felix 2000 Accelrys, Inc. 4 iterative matrix relaxation MARDIGRAS 5.2.1 Keepers, JW et al. 5 refinement Amber 8.0 Case et al 6 data analysis CORMA 5.2 Keepers JW et al.