8BZU

Double-ion dependent DNA quadruplex structure formed by C.elegans telomeric sequence

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	0.5 mM / DNA (5'-D(*GP*GP*CP*TP*TP*AP*GP*GP*CP*TP*TP*AP*GP*GP*CP*TP*TP*AP*GP*GP*C)-3')	90% H2O/10% D2O	145 mM	7.5	1 atm	298	Bruker AVANCE NEO 950
2	2D 1H-1H NOESY	0.5 mM / DNA (5'-D(*GP*GP*CP*TP*TP*AP*GP*GP*CP*TP*TP*AP*GP*GP*CP*TP*TP*AP*GP*GP*C)-3')	100% D2O	145 mM	7.5	1 atm	298	Bruker AVANCE NEO 950
3	2D 1H-1H TOCSY	0.5 mM / DNA (5'-D(*GP*GP*CP*TP*TP*AP*GP*GP*CP*TP*TP*AP*GP*GP*CP*TP*TP*AP*GP*GP*C)-3')	90% H2O/10% D2O	145 mM	7.5	1 atm	298	Bruker AVANCE NEO 850
4	2D 1H-1H TOCSY	0.5 mM / DNA (5'-D(*GP*GP*CP*TP*TP*AP*GP*GP*CP*TP*TP*AP*GP*GP*CP*TP*TP*AP*GP*GP*C)-3')	100% D2O	145 mM	7.5	1 atm	298	Bruker AVANCE NEO 850
5	2D 1H-13C HSQC aromatic	0.5 mM / DNA (5'-D(*GP*GP*CP*TP*TP*AP*GP*GP*CP*TP*TP*AP*GP*GP*CP*TP*TP*AP*GP*GP*C)-3')	100% D2O	145 mM	7.5	1 atm	298	Bruker AVANCE NEO 850

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE NEO	950
2	Bruker	AVANCE NEO	850

NMR Refinement
Method	Details	Software
simulated annealing		Amber

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	chemical shift assignment	NMRFAM-SPARKY		Lee, Tonelli, Markley
2	structure calculation	Amber		Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman
3	refinement	Amber		Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman