2MB2

parallel-stranded G-quadruplex in DNA poly-G stretches

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H TOCSY	0.1-2 mM DNA (5'-D(*TP*TP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*T)-3')	90% H2O/10% D2O	10	7.0	ambient	310
2	2D 1H-1H NOESY	0.1-2 mM DNA (5'-D(*TP*TP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*T)-3')	90% H2O/10% D2O	10	7.0	ambient	310
3	2D 1H-1H JRNOESY	0.1-2 mM DNA (5'-D(*TP*TP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*GP*T)-3')	90% H2O/10% D2O	10	7.0	ambient	310

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AMX	700
2	Bruker	AMX	600

NMR Refinement
Method	Details	Software
DGSA-distance geometry simulated annealing, simulated annealing		X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	geometry optimization	X-PLOR NIH	2.34	Schwieters, Kuszewski, Tjandra and Clore
2	refinement	X-PLOR NIH	2.34	Schwieters, Kuszewski, Tjandra and Clore
3	structure solution	X-PLOR NIH	2.34	Schwieters, Kuszewski, Tjandra and Clore