1NYD

Solution structure of DNA quadruplex GCGGTGGAT

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	4 mM sample in 100 mM NaCl, 2 mM phosphate	99.9% D2O	100 mM NaCl	6.6	1 atm	293
2	2D TOCSY	4 mM sample in 100 mM NaCl, 2 mM phosphate	99.9% D2O	100 mM NaCl	6.6	1 atm	293
3	DQF-COSY	4 mM sample in 100 mM NaCl, 2 mM phosphate	99.9% D2O	100 mM NaCl	6.6	1 atm	293
4	(1H,13C)HSQC	4 mM sample in 100 mM NaCl, 2 mM phosphate	99.9% D2O	100 mM NaCl	6.6	1 atm	293
5	(1H,15N)HSQC	4 mM sample in 100 mM NaCl, 2 mM phosphate	90% H2O/10% D2O	100 mM NaCl	6.6	1 atm	273
6	JR-HMBC	4 mM sample in 100 mM NaCl, 2 mM phosphate	90% H2O/10% D2O	100 mM NaCl	6.6	1 atm	273

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	UNITY	400
2	Varian	INOVA	500
3	Varian	INOVA	600

NMR Refinement
Method	Details	Software
distance geometry, simulated annealing, molecular dynamics		Felix

NMR Ensemble Information
Conformer Selection Criteria
Conformers Calculated Total Number
Conformers Submitted Total Number	1

Additional NMR Experimental Information
Details	Structure determined using homo- and heteronuclear techniques with explicit correlations between exchangeable and non-exchangeable signals.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	Felix	1998	MSI
2	refinement	X-PLOR	3.1	Brunger
3	data analysis	Insight II	2000	Accelrys