6AC7

Structure of a (3+1) hybrid G-quadruplex in the PARP1 promoter

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	1 mM TP3-T6, 70 mM potassium chloride, 7.7 mM KH2PO4, 12.3 mM K2HPO4	90% H2O/10% D2O	100 mM	7	1 atm	298	Bruker AVANCE III 600
2	2D 1H-1H NOESY	1 mM TP3-T6, 70 mM potassium chloride, 7.7 mM KH2PO4, 12.3 mM K2HPO4	90% H2O/10% D2O	100 mM	7	1 atm	283	Bruker AVANCE III 800
3	2D 1H-1H NOESY	1 mM TP3-T6, 70 mM potassium chloride, 7.7 mM KH2PO4, 12.3 mM K2HPO4	100% D2O	100 mM	7	1 atm	298	Bruker AVANCE III 600
4	1D 1H-15N HMQC	0.4 mM U-4% 15N Guanine TP3-T6, 70 mM potassium chloride, 7.7 mM KH2PO4, 12.3 mM K2HPO4	90% H2O/10% D2O	100 mM	7	1 atm	298	Bruker AVANCE III 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III	600
2	Bruker	AVANCE III	800

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

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 NIH	2.42	Schwieters, Kuszewski, Tjandra and Clore
2	structure calculation	X-PLOR NIH	2.42	Schwieters, Kuszewski, Tjandra and Clore
3	chemical shift assignment	Sparky	3.12	Goddard
4	peak picking	Sparky	3.12	Goddard