SOLUTION NMR Experimental Data


Experimental Details
Sample Conditions
Sample Contents1.44 mM DNA, 10 mM sodium phosphate buffer, pH 6.2, 0.05 mM EDTA, 0-25 mM NaCl, 8-10 equivalents argininamide
Solvent99.99% D2O
Ionic Strength0-25 mM NaCl
pH6.2
Pressureambient
Temperature (K)293
Experiment(s):2D NOESY, DQF-COSY, TOCSY
Sample Contents1.44 mM DNA, 10 mM sodium phosphate buffer, pH 6.2, 0.05 mM EDTA, 0-25 mM NaCl, 8-10 equivalents argininamide
Solvent90% H2O, 10% D2O
Ionic Strength0-25 mM NaCl
pH6.2
Pressureambient
Temperature (K)278
Experiment(s):2D NOESY
Spectrometer Information
Manufacturer Model Field Strength
GE Omega 500.0
Bruker AMX 600.0
NMR Refinement
Method Distance restraints were obtained from relaxation rate matrix calculations. Structures were calculated using simulated annealing and molecular dynamics
NMR Ensemble Information
Conformer Selection Criteria structures with acceptable covalent geometry,structures with favorable non- bond energy,structures with the least restraint violations,structures with the lowest energy
Conformers Calculated Total Number 30
Conformers Submitted Total Number 10
Representative Model Choice Rationale
1 fewest violations
Additional NMR Experimental Information
1 Data were also collected for sequences containing 5-methyl cytosine substituted independently at positions 15 and 16, and for the sequence with inosine substituted at postion 14.
Computation: NMR Software
# Classification Software Name Author
1 refinement DISCOVER 2.97 Molecular Simulations, Inc
2 data analysis FELIX 950 Molecular Simulations, Inc
3 iterative matrix relaxation MARDIGRAS 3.2 Brandan A. Borgias, Paul D. Thomas, He Liu, Anil Kumar, Marco Tonelli