2L8I

A biocompatible backbone modification? - Structure and dynamics of a triazole-linked DNA duplex

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D DQF-COSY	3 mM DNA strand I, 3 mM DNA strand II, 99,98 % [U-100% 2H] D2O, 150 mM sodium chloride, 10 mM sodium phosphate	100% D2O	150	6.5	ambient	298
2	2D 1H-1H NOESY	3 mM DNA strand I, 3 mM DNA strand II, 99,98 % [U-100% 2H] D2O, 150 mM sodium chloride, 10 mM sodium phosphate	100% D2O	150	6.5	ambient	298
3	2D 1H-1H TOCSY	3 mM DNA strand I, 3 mM DNA strand II, 99,98 % [U-100% 2H] D2O, 150 mM sodium chloride, 10 mM sodium phosphate	100% D2O	150	6.5	ambient	298
4	2D 1H-13C HMQC	3 mM DNA strand I, 3 mM DNA strand II, 99,98 % [U-100% 2H] D2O, 150 mM sodium chloride, 10 mM sodium phosphate	100% D2O	150	6.5	ambient	298
5	2D 1H-13C HMQC	3 mM DNA strand I, 3 mM DNA strand II, 99,98 % [U-100% 2H] D2O, 20 mg/ml Pf1 phage, 150 mM sodium chloride, 10 mM sodium phosphate	100% D2O	150	6.5	ambient	298
6	2D 1H-1H NOESY	3 mM DNA strand I, 3 mM DNA strand II, 10 % [U-99% 2H] D2O, 90 % H2O, 150 mM sodium chloride, 10 mM sodium phosphate	90% H2O/10% D2O	150	6.5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600

NMR Refinement
Method	Details	Software
torsion angle dynamics	20000K	CARA

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	11
Representative Model	1 (minimized average structure)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	CARA	1.84	Keller and Wuthrich
2	peak picking	CARA	1.84	Keller and Wuthrich
3	collection	TopSpin	2.1	Bruker Biospin
4	processing	TopSpin	2.1	Bruker Biospin
5	refinement	X-PLOR NIH	2.20	Schwieters, Kuszewski, Tjandra and Clore
6	structure solution	X-PLOR NIH	2.20	Schwieters, Kuszewski, Tjandra and Clore