2KE8

NMR solution structure of metal-modified DNA

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H NOESY	0.3-0.5 mM DNA (34-MER)-1, 120 mM sodium perchlorate-2, 0.9-1.5 mM SILVER ION-3	100% D2O	0.12	7.2	ambient	298
2	2D 1H-1H TOCSY	0.3-0.5 mM DNA (34-MER)-1, 120 mM sodium perchlorate-2, 0.9-1.5 mM SILVER ION-3	100% D2O	0.12	7.2	ambient	298
3	2D 1H-13C HSQC	0.3-0.5 mM DNA (34-MER)-1, 120 mM sodium perchlorate-2, 0.9-1.5 mM SILVER ION-3	100% D2O	0.12	7.2	ambient	298
4	2D 1H-15N HSQC	0.3-0.5 mM DNA (34-MER)-1, 120 mM sodium perchlorate-2, 0.9-1.5 mM SILVER ION-3	100% D2O	0.12	7.2	ambient	298
5	1D 31P	0.3-0.5 mM DNA (34-MER)-1, 120 mM sodium perchlorate-2, 0.9-1.5 mM SILVER ION-3	100% D2O	0.12	7.2	ambient	298
6	2D 1H-1H NOESY	0.3-0.5 mM DNA (34-MER)-4, 120 mM sodium perchlorate-5, 0.9-1.5 mM SILVER ION-6	90% H2O/10% D2O	0.12	7.2	ambient	278

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	700
2	Bruker	AV-2	400

NMR Refinement
Method	Details	Software
torsion angle dynamics		TopSpin

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	TopSpin	1.3, 2.0, 2.1	Bruker Biospin
2	chemical shift assignment	Sparky	3.1	Goddard
3	data analysis	Sparky	3.1	Goddard
4	peak picking	Sparky	3.1	Goddard
5	structure solution	DYANA	1.5	Guntert, Braun and Wuthrich
6	structure solution	X-PLOR NIH	2.15	Schwieters, Kuszewski, Tjandra and Clore
7	refinement	X-PLOR NIH	2.15	Schwieters, Kuszewski, Tjandra and Clore