1G14

NMR SOLUTION STRUCTURE OF THE DNA DODECAMER GGCAAGAAACGG

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	3mM d(5'-GGCAAGAAACGG-3')/d(5'-CCGTTTCTTGCC-3')	20mM potassium phosphate, 150 mM potassium chloride, 0.5mM EDTA pH 7.0	150 KCl	7.0	ambient	293
2	DQF-COSY	3mM d(5'-GGCAAGAAACGG-3')/d(5'-CCGTTTCTTGCC-3')	20mM potassium phosphate, 150 mM potassium chloride, 0.5mM EDTA pH 7.0	150 KCl	7.0	ambient	293
3	HCCHRELAY;HCCHTOCSY;cthsqc(with and without phage)	(5'-GGCAAGAAACGG-3')/d(5'-CCGTTTCTTGCC-3') nucleotides 1-12; U-13C/15N	20mM potassium phosphate, 150 mM potassium chloride, 0.5mM EDTA pH 7.0	150 KCl	7.0	ambient	293
4	HCCHRELAY;HCCHTOCSY;cthsqc(with and without phage)	(5'-GGCAAGAAACGG-3')/d(5'-CCGTTTCTTGCC-3') nucleotides 13-24; U-13C/15N	20mM potassium phosphate, 150 mM potassium chloride, 0.5mM EDTA pH 7.0	150 KCl	7.0	ambient	293

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	500
2	Bruker	DMX	600
3	Bruker	DMX	750

NMR Refinement
Method	Details	Software
matrix relaxation, simulated annealing with residual dipolar couplings	The structure is based on a total of 434 restraints, 217 NOE derived, 90 dihedral, 31 Watson-Crick, and 91 residual dipolar coupling restraints	MARDIGRAS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	20
Conformers Submitted Total Number	10
Representative Model	1 (n/a)

Additional NMR Experimental Information
Details	This structure was determined using 13C-H and 15N-H residual dipolar couplings

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	iterative matrix relaxation	MARDIGRAS	3.2	James
2	iterative matrix relaxation	CORMA	5.2	James
3	refinement	X-PLOR	with residual dipolar patch	Brunger, Tjandra