6GZN | pdb_00006gzn

Adenine-driven structural switch from two- to three-quartet DNA 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	0.6 mM DNA (5'-D(*GP*GP*GP*TP*AP*GP*GP*GP*AP*GP*CP*GP*GP*GP*AP*GP*AP*GP*GP*G)-3')	90% H2O/10% D2O	100 mM	7.0	1 atm	278	Varian INOVA 800
2	2D 1H-1H TOCSY	0.8 mM DNA (5'-D(*GP*GP*GP*TP*AP*GP*GP*GP*AP*GP*CP*GP*GP*GP*AP*GP*AP*GP*GP*G)-3')	100% D2O	100 mM	7.0	1 atm	278	Agilent DD2 600
3	2D DQF-COSY	0.8 mM DNA (5'-D(*GP*GP*GP*TP*AP*GP*GP*GP*AP*GP*CP*GP*GP*GP*AP*GP*AP*GP*GP*G)-3')	100% D2O	100 mM	7.0	1 atm	278	Agilent DD2 600
4	2D 1H-13C HSQC aliphatic	0.6 mM DNA (5'-D(*GP*GP*GP*TP*AP*GP*GP*GP*AP*GP*CP*GP*GP*GP*AP*GP*AP*GP*GP*G)-3')	90% H2O/10% D2O	100 mM	7.0	1 atm	278	Agilent DD2 600
5	2D 1H-13C HSQC aromatic	0.6 mM DNA (5'-D(*GP*GP*GP*TP*AP*GP*GP*GP*AP*GP*CP*GP*GP*GP*AP*GP*AP*GP*GP*G)-3')	90% H2O/10% D2O	100 mM	7.0	1 atm	278	Agilent DD2 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Agilent	DD2	600
2	Varian	INOVA	800

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	Sparky		Goddard
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