SOLUTION NMR Experimental Data

Experimental Details
Sample Conditions
Sample Contentsn/a
Solvent99.999% D2O
Ionic Strength0.5 mL of 0.01 M sodium phosphate buffer containing 0.1 M NaCl and 0.05 mM Na2EDTA at pD 7.2, in 99.999% D2O
Temperature (K)283
Experiment(s):2D NOESY, DQF-COSY
Spectrometer Information
Manufacturer Model Field Strength
Bruker DRX 500.0
Bruker DRX 600.0
NMR Refinement
Method Data was processed using felix 97. The NOE intensities were converted to distance using RANMARDI module of MARDIGRAS. Starting structures were built using InsightII. XPLOR was used for structural refinement. Final averaged structure was solvated using AMBER. And MD simulated annealing was performed in presence of counter ions using SANDER protocol. The back calculations were performed using CORMA.
Details The structures are based on 341 distance retraints, 38 empirical H-bond restraints, 17 sugar pucker restraints, and 89 empirical torsion angle restraints
NMR Ensemble Information
Conformers Submitted Total Number 1
Representative Model Choice Rationale
1 simulated annealing structure, calculaed starting from energy minmized averaged structure from 20 final structures. the enrgy minimized structure was solvated, and md simulation annealing was performed in presence of counter ions
Computation: NMR Software
# Classification Software Name Author
1 collection version: 3.0 XWINNMR Bruker
2 processing version: 97 FELIX Accelrys Inc.
3 data analysis version: 5.2 MARDIGRAS Borgias, B. A., and James, T. L. (1990) MARDIGRAS- -a procedure for matrix analysis of relaxation for discerning geometry of an aqueous structure. J. Magn. Reson. 87, 475-487
4 refinement version: 3.851 X-PLOR A.T.Brunger
5 iterative matrix relaxation version: 5.2 CORMA Keepers, J. W., and James, T. L. (1984)J. Magn. Reson. 87, 475-487.
6 structure solution version: 6.0 AMBER Case, D. A., and Pearlman C. A., et al. (1999) Amber 6.0, University of California, San Francisco, CA.