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NMR STUDY OF B-DNA CONTAINING A MODIFIED BASE PAIR: THE 2'-DEOXYADENOSINE 3-(2-HYDROXYETHYL-2'-DEOXYURIDINE)
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
2D NOESY
2 MM DNA, 10 MM PHOSPHATE BUFFER, 50 MM NACL, 0.5 MM
10 mM PHOSPHATE BUFFER, 5 NACL, 0.2 mM EDTA
6.7
AMBIENT
293
2
DQF-COSY
2 MM DNA, 10 MM PHOSPHATE BUFFER, 50 MM NACL, 0.5 MM
10 mM PHOSPHATE BUFFER, 5 NACL, 0.2 mM EDTA
6.7
AMBIENT
293
3
TOCSY
2 MM DNA, 10 MM PHOSPHATE BUFFER, 50 MM NACL, 0.5 MM
10 mM PHOSPHATE BUFFER, 5 NACL, 0.2 mM EDTA
6.7
AMBIENT
293
4
DQ
2 MM DNA, 10 MM PHOSPHATE BUFFER, 50 MM NACL, 0.5 MM
10 mM PHOSPHATE BUFFER, 5 NACL, 0.2 mM EDTA
6.7
AMBIENT
293
5
HSQC 1H-31P
2 MM DNA, 10 MM PHOSPHATE BUFFER, 50 MM NACL, 0.5 MM
10 mM PHOSPHATE BUFFER, 5 NACL, 0.2 mM EDTA
6.7
AMBIENT
293
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
AVANCE
600
2
Bruker
AVANCE
500
NMR Refinement
Method
Details
Software
RESTRAINED MOLECULAR DYNA SIMULATIONS
XwinNMR
NMR Ensemble Information
Conformer Selection Criteria
Fit with NMR constraints and energy
Conformers Calculated Total Number
256
Conformers Submitted Total Number
2
Additional NMR Experimental Information
Details
THE STRUCTURES WERE DETERMINED USING PROTON NMR FOLLOWED BY DISTANCE RESTRAINED MOLECULAR DYNAMICS SIMULATIONS. THE BEST REPRESENTATIVE STRUCTURES ARE PRESENTED, MODELS 1 AND 2.