2N9Q

Photoswitchable G-quadruplex

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	550 uM DNA (5'-D(*GP*GP*(AZW)P*GP*G)-3'), 25 mM Tris-HCl, 50 mM KCl	100% D2O	71	7.4	ambient	298
2	2D 1H-13C HMBC	550 uM DNA (5'-D(*GP*GP*(AZW)P*GP*G)-3'), 25 mM Tris-HCl, 50 mM KCl	90% H2O/10% D2O	71	7.4	ambient	298
3	2D 1H-31P TOCSY	550 uM DNA (5'-D(*GP*GP*(AZW)P*GP*G)-3'), 25 mM Tris-HCl, 50 mM KCl	100% D2O	71	7.4	ambient	298
4	2D 1H-1H P.E. COSY	550 uM DNA (5'-D(*GP*GP*(AZW)P*GP*G)-3'), 25 mM Tris-HCl, 50 mM KCl	100% D2O	71	7.4	ambient	298
5	2D 1H-1H NOESY	550 uM DNA (5'-D(*GP*GP*(AZW)P*GP*G)-3'), 25 mM Tris-HCl, 50 mM KCl	90% H2O/10% D2O	71	7.4	ambient	298
6	2D 1H-1H NOESY	550 uM DNA (5'-D(*GP*GP*(AZW)P*GP*G)-3'), 25 mM Tris-HCl, 50 mM KCl	100% D2O	71	7.4	ambient	298

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

NMR Refinement
Method	Details	Software
simulated annealing	simulated annealing with cartesian angle dynamics	CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CNS	1.1	Brunger, Adams, Clore, Gros, Nilges and Read
2	structure solution	ARIA	1.2	Linge, O'Donoghue and Nilges
3	refinement	ARIA	1.2	Linge, O'Donoghue and Nilges
4	collection	TopSpin	3.2	Bruker Biospin
5	processing	TopSpin	3.2	Bruker Biospin
6	chemical shift assignment	Sparky	3.114	Goddard
7	data analysis	Sparky	3.114	Goddard
8	peak picking	Sparky	3.114	Goddard