Experiment: 2N6X

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	0.4-1.1 mM CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-uniformly labeled CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-AU labeled CssA5 RNA (43-MER), 0.4-1.1 mM partially deuterated CssA5 RNA (43-MER)	95% H2O/5% D2O		6.0	ambient	280
2	2D 1H-13C HSQC	0.4-1.1 mM CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-uniformly labeled CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-AU labeled CssA5 RNA (43-MER), 0.4-1.1 mM partially deuterated CssA5 RNA (43-MER)	95% H2O/5% D2O		6.0	ambient	280
3	2D 1H-1H TOCSY	0.4-1.1 mM CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-uniformly labeled CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-AU labeled CssA5 RNA (43-MER), 0.4-1.1 mM partially deuterated CssA5 RNA (43-MER)	95% H2O/5% D2O		6.0	ambient	280
4	2D DQF-COSY	0.4-1.1 mM CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-uniformly labeled CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-AU labeled CssA5 RNA (43-MER), 0.4-1.1 mM partially deuterated CssA5 RNA (43-MER)	95% H2O/5% D2O		6.0	ambient	280
5	2D 1H-1H NOESY	0.4-1.1 mM CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-uniformly labeled CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-AU labeled CssA5 RNA (43-MER), 0.4-1.1 mM partially deuterated CssA5 RNA (43-MER)	95% H2O/5% D2O		6.0	ambient	280
6	3D 1H-13C NOESY	0.4-1.1 mM CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-uniformly labeled CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-AU labeled CssA5 RNA (43-MER), 0.4-1.1 mM partially deuterated CssA5 RNA (43-MER)	95% H2O/5% D2O		6.0	ambient	280
7	3D HCCH-TOCSY	0.4-1.1 mM CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-uniformly labeled CssA5 RNA (43-MER), 0.4-1.1 mM 13C/15N-AU labeled CssA5 RNA (43-MER), 0.4-1.1 mM partially deuterated CssA5 RNA (43-MER)	95% H2O/5% D2O		6.0	ambient	280

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

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

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	50
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
2	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
3	collection	TopSpin		Bruker Biospin
4	processing	TopSpin		Bruker Biospin
5	chemical shift assignment	Sparky		Goddard
6	data analysis	Sparky		Goddard
7	peak picking	Sparky		Goddard

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.