8S1W

Structure of a quadruplex-duplex hybrid with a (-pd+l) loop progression

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-13C HSQC	0.3 mM DNA (33-MER), 0.2 mM [U-10% 13C; U-10% 15N] deoxyguanosine DNA (33-MER)	90% H2O/10% D2O	120 mM	7.9	1 atm	298	Bruker AVANCE NEO 600
2	2D 1H-1H COSY	0.3 mM DNA (33-MER), 0.2 mM [U-10% 13C; U-10% 15N] deoxyguanosine DNA (33-MER)	90% H2O/10% D2O	120 mM	7.9	1 atm	298	Bruker AVANCE NEO 600
3	2D 1H-1H NOESY	0.3 mM DNA (33-MER), 0.2 mM [U-10% 13C; U-10% 15N] deoxyguanosine DNA (33-MER)	90% H2O/10% D2O	120 mM	7.9	1 atm	298	Bruker AVANCE NEO 600
4	1H-15N HMQC	0.3 mM DNA (33-MER), 0.2 mM [U-10% 13C; U-10% 15N] deoxyguanosine DNA (33-MER)	90% H2O/10% D2O	120 mM	7.9	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		Amber

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	CcpNmr Analysis	2.4.2	CCPN
2	structure calculation	Amber	18	Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman
3	refinement	Amber	18	Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman
4	peak picking	CcpNmr Analysis	2.4.2	CCPN
5	processing	TopSpin	4.0.7	Bruker Biospin

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.