8BM4

Hairpin adopted by modified oligonucleotide A32_mod found in the promoter of AUTS2 gene.

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	0.6 mM DNA, 20 mM potassium phosphate	90% H2O/10% D2O	20 mM	7.2	1 atm	273	Bruker AVANCE NEO 800
2	2D NOESY	0.6 mM DNA, 20 mM potassium phosphate	100% D2O	20 mM	7.2	1 atm	318	Bruker AVANCE NEO 800
3	2D DQF-COSY	0.6 mM DNA, 20 mM potassium phosphate	100% D2O	20 mM	7.2	1 atm	318	Bruker AVANCE NEO 800
4	2D 1H-31P CT-COSY	0.6 mM DNA, 20 mM potassium phosphate	100% D2O	20 mM	7.2	1 atm	318	Bruker AVANCE NEO 600
5	2D NOESY	0.6 mM DNA, 20 mM potassium phosphate	100% D2O	20 mM	7.2	1 atm	298	Bruker AVANCE NEO 800
6	2D DQF-COSY	0.6 mM DNA, 20 mM potassium phosphate	100% D2O	20 mM	7.2	1 atm	298	Bruker AVANCE NEO 800
7	2D 1H-13C HSQC	0.4 mM Residue-specific, 10% 13C/15N DNA, 20 mM potassium phosphate	90% H2O/10% D2O	20 mM	7.2	1 atm	318	Bruker AVANCE NEO 800
8	2D 1H-13C HSQC	0.6 mM 10 residues, 10% 13C/15N DNA, 20 mM potassium phosphate	90% H2O/10% D2O	20 mM	7.2	1 atm	318	Bruker AVANCE NEO 800

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

NMR Refinement
Method	Details	Software
simulated annealing	See attached restraint files.	Amber

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	collection	TopSpin		Bruker Biospin
2	chemical shift assignment	NMRFAM-SPARKY		National Magnetic Resonance Facility at Madison
3	data analysis	NMRFAM-SPARKY		National Magnetic Resonance Facility at Madison
4	structure calculation	Amber	2020	Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman