2F8U

G-quadruplex structure formed in human Bcl-2 promoter, hybrid form

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	1mM DNA oligomer, 20mM potassium phosphate buffer, 40mM potassium chloride	99.99% D2O	60mM	7.0	1 atm	298
2	2D TOCSY	1mM DNA oligomer, 20mM potassium phosphate buffer, 40mM potassium chloride	99.99% D2O	60mM	7.0	1 atm	298
3	DQF-COSY	1mM DNA oligomer, 20mM potassium phosphate buffer, 40mM potassium chloride	99.99% D2O	60mM	7.0	1 atm	298
4	PE-COSY	1mM DNA oligomer, 20mM potassium phosphate buffer, 40mM potassium chloride	99.99% D2O	60mM	7.0	1 atm	298
5	2D NOESY	1mM DNA oligomer, 20mM potassium phosphate buffer, 40mM potassium chloride, 90% H2O, 10% D2O	90% H2O/10% D2O	60mM	7.0	1 atm	298

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

NMR Refinement
Method	Details	Software
distance geometry simulated annealing molecular dynamics		X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations,structures with the lowest energy
Conformers Calculated Total Number	20
Conformers Submitted Total Number	10
Representative Model	1 (fewest violations,lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR	3.851	Brunger, A.T.
2	collection	XwinNMR	3.5
3	processing	XwinNMR	3.5
4	data analysis	Sparky	3.110