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Solution Structure of a Hedamycin-DNA complex
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D NOESY hedamycin covalently bound to G4 of d(ACCGGT) pH6.7 10%D2O/90%D2O buffer , 10mM phosphate, 50 mM NaCl 0.05 6.7 ambient 288 2 DQF-COSY hedamycin covalently bound to G4 of d(ACCGGT) pH6.7 100%D2O buffer , 10mM phosphate, 50 mM NaCl 0.05 6.7 ambient 288
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian INOVA 600
NMR Refinement Method Details Software Full relaxation matrix refinement
Restrained Molecular Dynamics
Torsion Angle dynamics MARDIGRAS
NMR Ensemble Information Conformer Selection Criteria The 10 structures submitted are those with the lowest energy,and agree best with the NMR data. Conformers Calculated Total Number 100 Conformers Submitted Total Number 10 Representative Model 7 (n/a)
Additional NMR Experimental Information Details The data was collected and processed using standard 2D homonuclear techniques
Computation: NMR Software # Classification Version Software Name Author 1 iterative matrix relaxation MARDIGRAS 3.2 Borgais, B. and James, T.L. 2 refinement CHARMM 23.2 MOLECULAR SIMULATIONS INCORPORATED, Waltham MA 3 refinement CNSSOLVE 1.0 Brunger,A.T., Adams,P.D., Clore,G.M., DeLano,W.L., Gros,P. Grosse-Kunstleve,R.W., Jiang,T-S., Kuszewski,J., Nilges,M., Pannu,N.S., Read,R.J., Rice,L.M., Simonson,T., Warren,G.L. 4 refinement CORMA 5.2 Keepers,J. and James, T. L. 5 collection VNMR 6.1 Varian Associates 6 data analysis XEASY 1.3.10 Bartels,C, Xia, T-H, Billeter, M., Guntert,P & Wuthrich,