8BWT

Structure of a symmetrical internal loop motif with three consecutive U:U mismatches from stem-loop 1 in the 3'-UTR of the SARS-CoV2 genomic RNA

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 5 % D2O	95% H2O/5% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 900
2	2D 1H-1H NOESY	830 uM RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 5 % D2O	95% H2O/5% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 800
3	2D 1H-13C HSQC aromatic	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 5 % D2O	95% H2O/5% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 900
4	2D 1H-13C HSQC aliphatic	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 5 % D2O	95% H2O/5% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 900
5	2D 1H-13C HSQC aliphatic	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 100 % D2O	100% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 600
6	2D 1H-15N HSQC NH2 only	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 5 % D2O	95% H2O/5% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 900
7	H56C56(C4N3)H optimized for H56	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 5 % D2O	95% H2O/5% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 600
8	H56C56(C4N3)H optimized for C56	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 5 % D2O	95% H2O/5% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 600
9	H(C)N aromatic	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 100 % D2O	100% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 600
10	H(C)N aliphatic	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 100 % D2O	100% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 600
11	H(C)P-CCH-TOCSY	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 100 % D2O	100% D2O	50 mM	6.2	1 atm	298	Bruker AVANCE 700
12	H(N)CO	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 5 % D2O	95% H2O/5% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 600
13	3D HCCH-COSY	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 100 % D2O	100% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 600
14	3D HCCH-TOCSY	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 100 % D2O	100% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 600
15	HCC-TOCSY-CCH-E.COSY	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 100 % D2O	100% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 600
17	3D 1H-13C NOESY aliphatic	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 5 % D2O	95% H2O/5% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 900
16	3D 1H-13C NOESY aromatic	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 5 % D2O	95% H2O/5% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 900
19	3D 1H-13C NOESY aliphatic	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 100 % D2O	100% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 600
18	3D 1H-13C NOESY aromatic	1 mM 13C,15N-A,U RNA (26-MER), 25 mM potassium phosphate, 50 mM potassium chloride, 100 % D2O	100% D2O	50 mM	6.2	1 atm	283	Bruker AVANCE 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Bruker	AVANCE	700
3	Bruker	AVANCE	800
4	Bruker	AVANCE	900

NMR Refinement
Method	Details	Software
distance geometry		CYANA

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	chemical shift assignment	CARA		Keller and Wuthrich
2	structure calculation	CYANA		Guntert, Mumenthaler and Wuthrich
3	collection	TopSpin		Bruker Biospin
4	peak picking	CARA		Keller and Wuthrich