7E4E

NMR solution structures of DNA minidumbbell containing a N1-methyladenine

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	0.5 mM NA DNA (5'-D(*TP*TP*TP*(MA7)P*TP*TP*TP*A)-3'), 10 mM NA sodium phosphate, 0.02 mM NA DSS	99.96% D2O	10 mM	7.0	1 atm	278	Bruker AVANCE 500
2	2D DQF-COSY	0.5 mM NA DNA (5'-D(*TP*TP*TP*(MA7)P*TP*TP*TP*A)-3'), 10 mM NA sodium phosphate, 0.02 mM NA DSS	99.96% D2O	10 mM	7.0	1 atm	278	Bruker AVANCE 500
3	2D 1H-1H TOCSY	0.5 mM NA DNA (5'-D(*TP*TP*TP*(MA7)P*TP*TP*TP*A)-3'), 10 mM NA sodium phosphate, 0.02 mM NA DSS	99.96% D2O	10 mM	7.0	1 atm	278	Bruker AVANCE 500

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	500

NMR Refinement
Method	Details	Software
simulated annealing		Amber

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	100
Conformers Submitted Total Number	5
Representative Model	1 (fewest violations)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	TopSpin		Bruker Biospin
2	structure calculation	Amber		Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman