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Nonexchangeable interproton distance restraints were obtained from the buildup of NOE cross peak volumes in NOESY data sets (55, 100, 150 and 200 ms mixing times) on the 1S-(-)-trans-anti-(BPh)G*C and the 1R-(+)-trans-anti-(BPh)G*C 11-mer DNA duplex adducts in D2O buffer at 23 and 18 sC, respectively, and bounds were set between 15% and 25% of the calculated distances using the fixed cytidine H5-H6 reference distance of 2.45 . Non-stereospecific assignments were treated with r-6 averaging. Interproton distance restraints involving exchangeable protons of the same complex were obtained from NOESY spectra (90 and 150 ms mixing times) in H2O buffer at 4 sC with bounds set between 20% and 25% of the calculated distance using the thymine imino to adenine H2 reference distance of 2.91 across an A*T base pair.
VNMR
NMR Ensemble Information
Conformer Selection Criteria
structures with the lowest energy
Conformers Calculated Total Number
9
Conformers Submitted Total Number
9
Representative Model
1 (fewest violations)
Additional NMR Experimental Information
Details
D2O NMR experiments were performed at 13 degree C, H2O NMR experiments were performed at 4 degree C