5Z8F

Solution structure for the unique dimeric 4:2 complex of a platinum(II)-based tripod bound to a hybrid-1 human telomeric G-quadruplex

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H NOESY	1 mM G-quadruplex DNA (26-MER), 3 mM Pt-tripod, 25 mM potassium phosphate, 70 mM potassium chloride	90% H2O/10% D2O	95 mM	7.0	AMBIENT mbar	298	Bruker AVANCE III 700
2	2D 1H-1H TOCSY	1 mM G-quadruplex DNA (26-MER), 3 mM Pt-tripod, 25 mM potassium phosphate, 70 mM potassium chloride	90% H2O/10% D2O	95 mM	7.0	AMBIENT mbar	298	Bruker AVANCE III 700
3	2D 1H-1H COSY	1 mM G-quadruplex DNA (26-MER), 3 mM Pt-tripod, 25 mM potassium phosphate, 70 mM potassium chloride	90% H2O/10% D2O	95 mM	7.0	AMBIENT mbar	298	Bruker AVANCE III 700
4	2D 1H-1H NOESY	1 mM G-quadruplex DNA (26-MER), 3 mM Pt-tripod, 25 mM potassium phosphate, 70 mM potassium chloride	90% H2O/10% D2O	95 mM	7.0	AMBIENT mbar	288	Bruker AVANCE III 600
5	2D 1H-1H TOCSY	1 mM G-quadruplex DNA (26-MER), 3 mM Pt-tripod, 25 mM potassium phosphate, 70 mM potassium chloride	90% H2O/10% D2O	95 mM	7.0	AMBIENT mbar	288	Bruker AVANCE III 600
6	2D 1H-1H COSY	1 mM G-quadruplex DNA (26-MER), 3 mM Pt-tripod, 25 mM potassium phosphate, 70 mM potassium chloride	90% H2O/10% D2O	95 mM	7.0	AMBIENT mbar	288	Bruker AVANCE III 600
7	2D 1H-15N HSQC	1 mM 15N Thymine G-quadruplex DNA (26-MER), 3 mM Pt-tripod, 25 mM potassium phosphate, 70 mM potassium chloride	90% H2O/10% D2O	95 mM	7.0	AMBIENT mbar	278	Bruker AVANCE III 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III	600
2	Bruker	AVANCE III	700

NMR Refinement
Method	Details	Software
simulated annealing		X-PLOR
DGSA-distance geometry simulated annealing		Discover
molecular dynamics		Sparky

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	refinement	X-PLOR		Brunger
2	structure calculation	Discover		Accelrys Software Inc.
3	chemical shift assignment	Sparky		Goddard
4	peak picking	Sparky		Goddard
5	processing	TopSpin		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.