6TR2

Pre-folded structures govern folding pathways of human telomeric G-quadruplexes

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-13C HSQC	1 mM 8% 13C, 8% 15N GCN	90% H2O/10% D2O	0 mM	5	1 atm	278	Agilent Agilent Agilent Technologies DD2 600 MHz NMR spectrometer 600
2	2D 1H-15N HSQC	1 mM 8% 13C, 8% 15N GCN	90% H2O/10% D2O	0 mM	5	1 atm	278	Agilent Agilent Agilent Technologies DD2 600 MHz NMR spectrometer 600
3	1D 1H-15N HSQC	1 mM 8% 13C, 8% 15N GCN	90% H2O/10% D2O	0 mM	5	1 atm	278	Agilent Agilent Agilent Technologies DD2 600 MHz NMR spectrometer 600
4	2D NOESY	1 mM GCN	90% H2O/10% D2O	0 mM	5	1 atm	278	Agilent Agilent Agilent Technologies DD2 600 MHz NMR spectrometer 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Agilent	Agilent Agilent Technologies DD2 600 MHz NMR spectrometer	600

NMR Refinement
Method	Details	Software
simulated annealing		Amber

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
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	VNMR		Varian
3	chemical shift assignment	Sparky		Goddard
4	peak picking	Sparky		Goddard
2	structure calculation	Amber		Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman