6TCG

2'-F-riboguanosine and 2'-F-arabinoguanosine modified G-quadruplex with V-loop and all-syn G-tract

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H NOESY	0.4 mM F14A15	90% H2O/10% D2O	20 mM	7	1 atm	298	Bruker AVANCE NEO 600
2	2D 1H-1H NOESY	0.4 mM F14A15	100% D2O	20 mM	7	1 atm	298	Bruker AVANCE NEO 600
3	2D DQF-COSY	0.4 mM F14A15	100% D2O	20 mM	7	1 atm	298	Bruker AVANCE NEO 600
4	2D 1H-1H TOCSY	0.4 mM F14A15	100% D2O	20 mM	7	1 atm	298	Bruker AVANCE NEO 600
5	2D 1H-13C HSQC aromatic	0.4 mM F14A15	90% H2O/10% D2O	20 mM	7	1 atm	298	Bruker AVANCE NEO 600
6	2D 19F-1H HOESY	0.4 mM F14A15	90% H2O/10% D2O	20 mM	7	1 atm	298	Bruker AVANCE NEO 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE NEO	600

NMR Refinement
Method	Details	Software
simulated annealing		X-PLOR NIH
molecular dynamics		Amber

NMR Ensemble Information
Conformer Selection Criteria	all calculated structures submitted
Conformers Calculated Total Number	10
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin		Bruker Biospin
2	processing	TopSpin		Bruker Biospin
3	chemical shift assignment	CcpNmr Analysis		CCPN
4	structure calculation	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
5	structure calculation	Amber		Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.