6KVB

Structure of an intra-locked G-quadruplex

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	1 mM AT26, 20 mM potassium phosphate, 120 mM potassium chloride	90% H2O/10% D2O	150 mM	7	1 atm	298	Bruker AVANCE III 800
2	2D 1H-1H NOESY	1 mM AT26, 20 mM potassium phosphate, 120 mM potassium chloride	100% D2O	150 mM	7	1 atm	298	Bruker AVANCE III 800
3	2D 1H-1H TOCSY	1 mM AT26, 20 mM potassium phosphate, 120 mM potassium chloride	100% D2O	150 mM	7	1 atm	298	Bruker AVANCE III 800
4	2D 1H-1H COSY	1 mM AT26, 20 mM potassium phosphate, 120 mM potassium chloride	100% D2O	150 mM	7	1 atm	298	Bruker AVANCE III 800

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
2	Bruker	AVANCE III	800

NMR Refinement
Method	Details	Software
DGSA-distance geometry 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	collection	TopSpin		Bruker Biospin
2	peak picking	Sparky		Goddard
3	chemical shift assignment	Sparky		Goddard
4	data analysis	Sparky		Goddard
5	structure calculation	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
6	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore