5WQ1

Solution Structure of the first stem-loop of Escherichia coli DsrA RNA

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	0.7 mM RNA (23-MER), 10 mM sodium phosphate, 50 mM sodium chloride	90% H2O/10% D2O	60 mM	6.5	1 atm	283	Bruker DMX 600
2	2D 1H-15N HNN-COSY	0.7 mM [U-13C; U-15N] RNA (23-MER), 10 mM sodium phosphate, 50 mM potassium chloride	90% H2O/10% D2O	60 mM	6.5	1 atm	283	Bruker DMX 600
3	2D 1H-15N HSQC	0.7 mM [U-13C; U-15N] RNA (23-MER), 10 mM sodium phosphate, 50 mM potassium chloride	90% H2O/10% D2O	60 mM	6.5	1 atm	283	Bruker DMX 600
4	2D 1H-15N HSQC NH2 only	0.7 mM [U-13C; U-15N] RNA (23-MER), 10 mM sodium phosphate, 50 mM potassium chloride	90% H2O/10% D2O	60 mM	6.5	1 atm	283	Bruker DMX 600
5	3D 1H-15N NOESY	0.7 mM [U-13C; U-15N] RNA (23-MER), 10 mM sodium phosphate, 50 mM potassium chloride	90% H2O/10% D2O	60 mM	6.5	1 atm	283	Bruker DMX 600
6	2D 1H-1H NOESY	0.7 mM RNA (23-MER), 10 mM sodium phosphate, 50 mM sodium chloride	100% D2O	60 mM	6.5	1 atm	303	Bruker DMX 600
7	2D DQF-COSY	0.7 mM RNA (23-MER), 10 mM sodium phosphate, 50 mM sodium chloride	100% D2O	60 mM	6.5	1 atm	303	Bruker DMX 600
8	2D 1H-1H TOCSY	0.7 mM RNA (23-MER), 10 mM sodium phosphate, 50 mM sodium chloride	100% D2O	60 mM	6.5	1 atm	303	Bruker DMX 600
9	2D 1H-13C HSQC aliphatic	0.7 mM [U-13C; U-15N] RNA (23-MER), 10 mM sodium phosphate, 50 mM sodium chloride	100% D2O	60 mM	6.5	1 atm	303	Bruker DMX 600
11	2D 1H-13C HSQC aromatic	0.7 mM [U-13C; U-15N] RNA (23-MER), 10 mM sodium phosphate, 50 mM sodium chloride	100% D2O	60 mM	6.5	1 atm	303	Bruker DMX 600
10	2D HCN	0.7 mM [U-13C; U-15N] RNA (23-MER), 10 mM sodium phosphate, 50 mM sodium chloride	100% D2O	60 mM	6.5	1 atm	303	Bruker DMX 600
13	3D HCCH-TOCSY	0.7 mM [U-13C; U-15N] RNA (23-MER), 10 mM sodium phosphate, 50 mM sodium chloride	100% D2O	60 mM	6.5	1 atm	303	Bruker DMX 600
12	3D HCCH-COSY	0.7 mM [U-13C; U-15N] RNA (23-MER), 10 mM sodium phosphate, 50 mM sodium chloride	100% D2O	60 mM	6.5	1 atm	303	Bruker DMX 600
14	3D 1H-13C NOESY	0.7 mM [U-13C; U-15N] RNA (23-MER), 10 mM sodium phosphate, 50 mM sodium chloride	100% D2O	60 mM	6.5	1 atm	303	Varian INOVA 700

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	600
2	Varian	INOVA	700

NMR Refinement
Method	Details	Software
simulated annealing		Amber

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	160
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	Sparky		Goddard
5	collection	XwinNMR		Bruker Biospin
2	structure calculation	CYANA		Guntert, Mumenthaler and Wuthrich
3	refinement	Amber		Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman
4	peak picking	Sparky		Goddard