1K8J

NMR STRUCTURE OF THE CK14 DNA DUPLEX: A PORTION OF THE KNOWN NF-kB SEQUENCE CK1

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2 mM DNA DUPLEX; 12 mM Na2HPO4; 8 mM NaH2PO4; 56 mM NaCl; 50 uM NaN3	99.96% D2O	100 mM	6.7	ambient	288
2	2D NOESY	2 mM DNA DUPLEX; 12 mM Na2HPO4; 8 mM NaH2PO4; 56 mM NaCl; 50 uM NaN3	90% H2O/10% D2O	100 mM	6.7	ambient	278

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	UNITYPLUS	750
2	Varian	UNITYPLUS	600

NMR Refinement
Method	Details	Software
molecular dynamics	Distance restraints were derived by MORASS 2.5 using a total relaxation matrix approach. The deposited structure represents the average of 10 final structures.	MORASS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	10
Conformers Submitted Total Number	1
Representative Model	1 (minimized average structure)

Additional NMR Experimental Information
Details	This structure was determined using standard 2D homonuclear techniques. Proton resonances were assigned using COSY, TOCSY, and NOESY data.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	iterative matrix relaxation	MORASS	2.5	Gorenstein
2	refinement	Amber	5	Case and Kollman