2LE6

Structure of a dimeric all-parallel-stranded G-quadruplex stacked via the 5'-to-5' interface

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-13C JR HMBC	0.5-2.0 mM DNA (5'-D(*GP*IP*GP*TP*GP*GP*GP*TP*GP*GP*GP*TP*GP*GP*GP*T)-3')-1	90% H2O/10% D2O	100mM K+	7	ambient	298
2	2D 1H-1H JR NOESY	0.5-2.0 mM DNA (5'-D(*GP*IP*GP*TP*GP*GP*GP*TP*GP*GP*GP*TP*GP*GP*GP*T)-3')-1	90% H2O/10% D2O	100mM K+	7	ambient	298
3	2D 1H-1H NOESY	0.5-2.0 mM DNA (5'-D(*GP*IP*GP*TP*GP*GP*GP*TP*GP*GP*GP*TP*GP*GP*GP*T)-3')-2	100% D2O	100mM K+	7	ambient	298
4	2D 1H-1H COSY	0.5-2.0 mM DNA (5'-D(*GP*IP*GP*TP*GP*GP*GP*TP*GP*GP*GP*TP*GP*GP*GP*T)-3')-2	100% D2O	100mM K+	7	ambient	298
5	2D 1H-1H TOCSY	0.5-2.0 mM DNA (5'-D(*GP*IP*GP*TP*GP*GP*GP*TP*GP*GP*GP*TP*GP*GP*GP*T)-3')-2	100% D2O	100mM K+	7	ambient	298
6	2D 1H-13C HSQC	0.5-2.0 mM DNA (5'-D(*GP*IP*GP*TP*GP*GP*GP*TP*GP*GP*GP*TP*GP*GP*GP*T)-3')-2	100% D2O	100mM K+	7	ambient	298
7	H-D exchange	0.5-2.0 mM DNA (5'-D(*GP*IP*GP*TP*GP*GP*GP*TP*GP*GP*GP*TP*GP*GP*GP*T)-3')-2	100% D2O	100mM K+	7	ambient	298
8	15N-filtered	0.5-2.0 mM [U-2% 15N; U-2% 13C] DNA (5'-D(*GP*IP*GP*TP*GP*GP*GP*TP*GP*GP*GP*TP*GP*GP*GP*T)-3')-3	90% H2O/10% D2O	100mM K+	7	ambient	298
9	D-labeled	0.5-2.0 mM [U-100% 2H] DNA (5'-D(*GP*IP*GP*TP*GP*GP*GP*TP*GP*GP*GP*TP*GP*GP*GP*T)-3')-4	90% H2O/10% D2O	100mM K+	7	ambient	298

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

NMR Refinement
Method	Details	Software
DGSA-distance geometry simulated annealing, distance-restrained molecular dynamics refinement in vacuo, distance-restrained molecular dynamics refinement in explicit solvent		TopSpin

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	processing	TopSpin	2.1	Bruker Biospin
2	peak picking	Felix	2007	Felix NMR, Inc.
3	structure solution	X-PLOR NIH	2.27	Schwieters, Kuszewski, Tjandra and Clore
4	refinement	Amber	10	Case, Darden, Cheatham, III, Simmerling, Wang, Duke, Luo, ... and Kollm
5	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore