SOLUTION NMR

NMR Experiment
Experiment Type Sample Contents Ionic Strength Solvent pH Pressure Temprature (K)
1 NOESY 76 mM 6.8 1 288
2 ROESY 76 mM 6.8 1 288
3 TOCSY 76 mM 6.8 1 288
4 2D EXCHANGE-ONLY SPECTRA 76 mM 6.8 1 288
NMR Spectrometer Information
Spectrometer Manufacturer Model Field Strength
NMR Refinement
Method Details Software
RELAXATION MATRIX REFINEMENT OF NOE DISTANCE RESTRAINTS AND RESTRAINED MOLECULAR DYNAMICS WITH SIMULATED ANNEALING THE FOLLOWING RESTRAINTS WERE APPLIED IN THE MOLECULAR DYNAMICS/ENERGY MINIMIZATION CALCULATIONS: (1) INTER-PROTON DISTANCE RESTRAINTS DIRECTLY DERIVED FROM RELAXATION MATRIX ANALYSIS OF NOE DATA; (2) IMINO PROTON HYDROGEN BOND RESTRAINTS FOR ALL BASE PAIRS EXCEPT THE CENTRAL DA-DG MISMATCH PAIR. THE MODIFIED DA RESIDUE OF THIS MINOR CONFORMER DISPLAYED A C2'-ENDO SUGAR PUCKER AND AN ANTI GLYCOSIDIC BOND. IT FORMED AN ANTI:ANTI BASE PAIR CONTAINING TWO HYDROGEN BONDS WITH THE OPPOSITE DG. THE MODIFIED DA RESIDUE OF THE MAJOR CONFORMER OF THIS MOLECULE [YEH ET AL. (1995) BIOCHEMISTRY 34, 13570-13581] DISPLAYED C3'-ENDO SUGAR PUCKER AND A SYN GLYCOSIDIC BOND. THE MAJOR CONFORMER MODIFIED DA RESIDUE FORMED A SYN:ANTI BASE PAIR CONTAINING NON-WATSON CRICK HYDROGEN BONDS WITH THE OPPOSITE DG. MORE REFINEMENT DETAILS CAN BE FOUND IN THE PRIMARY JOURNAL CITATION (SCHWARTZ ET AL.,1997). 1
NMR Ensemble Information
Conformer Selection Criteria ?
Conformers Calculated Total Number 1
Conformers Submitted Total Number 1
Representative Model 1 (minimized average structure)
Computation: NMR Software
# Classification Version Software Name Author
1 refinement 4.1 Amber PEARLMAN,CASE,CALDWELL,ROSS,CHEATHAM, FERGUSON,SEIBEL,SINGH,WEINER,KOLLMAN
2 structure calculation 2.2 MORASS Luxon
3 structure calculation 4.1 Amber PEARLMAN,CASE,CALDWELL,ROSS,CHEATHAM, FERGUSON,SEIBEL,SINGH,WEINER,KOLLMAN
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