SOLUTION NMR Experimental Data

Experimental Details
Sample Conditions
Sample Contents4 mM DNA duplex
Solvent99.9% D2O
Ionic StrengthNaCl(100mM), PO4-(20mM), NaN3(10mM), EDTA(0.1mM)
Temperature (K)298
Experiment(s):2D NOESY
Spectrometer Information
Manufacturer Model Field Strength
Varian INOVA 500.0
NMR Refinement
Method The RANDMARDI procedure of the complete relaxation matrix analysis method, MARDIGRAS, was used to calculate interproton distance bounds from the integrated NOESY cross-peak intensities. These distance bounds were then used as restraints in an RMD procedure to yield 20 structures.
Details The structures are based on a total of 524 restraints, 502 are NOE-derived distance constraints and 22 distance restraints from hydrogen bonds.
NMR Ensemble Information
Conformer Selection Criteria back calculated data agree with experimental NOESY spectrum
Conformers Calculated Total Number 20
Conformers Submitted Total Number 20
Representative Model Choice Rationale
1 lowest pairwise rmsd from other conformers
Additional NMR Experimental Information
1 This structure was determined using standard 2D homonuclear techniques.
Computation: NMR Software
# Classification Software Name Author
1 refinement DISCOVER 2.98 MSI
2 structure solution DISCOVER 2.98 MSI
3 iterative matrix relaxation MARDIGRAS 3.2 James, TL
4 data analysis FELIX 98.0 MSI
5 collection VNMR 6.1b Varian