8IF5

AFB1-AF26 APTAMER COMPLEX

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D DQF-COSY	1 mM AFB1 DNA aptamer (26-MER), 2 mM AFB1, 10 mM D TRIS-D11, 50 mM sodium chloride, 50 mM MgCL2	100% D2O	100 mM	7.5	1 atm	278	Bruker AVANCE III 700
2	2D 1H-1H NOESY	1 mM AFB1 DNA aptamer (26-MER), 2 mM AFB1, 10 mM D TRIS-D11, 50 mM sodium chloride, 50 mM MgCL2	100% D2O	100 mM	7.5	1 atm	278	Bruker AVANCE III 700
3	2D 1H-1H TOCSY	1 mM AFB1 DNA aptamer (26-MER), 2 mM AFB1, 10 mM D TRIS-D11, 50 mM sodium chloride, 50 mM MgCL2	100% D2O	100 mM	7.5	1 atm	278	Bruker AVANCE III 700
4	2D 1H-1H NOESY	1 mM AFB1 DNA aptamer (26-MER), 2 mM AFB1, 10 mM D TRIS-D11, 50 mM sodium chloride, 50 mM MgCL2	90% H2O/10% D2O	100 mM	7.5	1 atm	278	Bruker AVANCE III 700
5	2D 31P-1H COSY	1 mM AFB1 DNA aptamer (26-MER), 2 mM AFB1, 10 mM D TRIS-D11, 50 mM sodium chloride, 50 mM MgCL2	100% D2O	100 mM	7.5	1 atm	278	Bruker AVANCE III 700
6	2D 1H-13C JRHMBC	3 mM AFB1 DNA aptamer (26-MER), 6 mM AFB1, 10 mM D TRIS-D11, 50 mM sodium chloride, 50 mM MgCL2	90% H2O/10% D2O	100 mM	7.5	1 atm	278	Bruker AVANCE III 600

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

NMR Refinement
Method	Details	Software
simulated annealing		X-PLOR NIH
torsion angle dynamics		TopSpin

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin		Bruker Biospin
2	structure calculation	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
3	chemical shift assignment	Sparky		Goddard