1EXL

STRUCTURE OF AN 11-MER DNA DUPLEX CONTAINING THE CARBOCYCLIC NUCLEOTIDE ANALOG: 2'-DEOXYARISTEROMYCIN

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	280 OD260 DNA; 10 mM phosphate buffer; 50 mM NaCl and 1mM EDTA	90% H2O, 10% D2O (v/v); 99.96% D2O	50 mM NaCl	6.9	1 atm	278

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	500
2	Varian	INOVA	600

NMR Refinement
Method	Details	Software
molecular dynamics; matrix relaxation		Felix

NMR Ensemble Information
Conformer Selection Criteria	all calculated structures submitted, back calculated data agree with experimental NOESY spectrum
Conformers Calculated Total Number	30
Conformers Submitted Total Number	30
Representative Model	15 (minimized average structure)

Additional NMR Experimental Information
Details	This structure was determined using standard 2D homonuclear techniques

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	Felix	95	MSI
2	data analysis	MARDIGRAS	2.0	Borgias,B.A. & James, T.L.
3	structure solution	X-PLOR	3.8	Brunger, A.
4	refinement	X-PLOR	3.8	Brunger, A.