Experiment: 2GM0

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	0.75 mM unlabeled SL1 RNA, 10 mM potassium phosphate buffer, 250 mM NaCl, 0.1 mM MgCl2, pH 6.4	D2O	10 mM potassium phosphate buffer, 250 mM NaCl, 0.1 mM Mg Cl2	6.4	ambient	303
2	2D TOCSY	0.75 mM unlabeled SL1 RNA, 10 mM potassium phosphate buffer, 250 mM NaCl, 0.1 mM MgCl2, pH 6.4	D2O	10 mM potassium phosphate buffer, 250 mM NaCl, 0.1 mM Mg Cl2	6.4	ambient	303
3	2D NOESY	0.75 mM unlabeled SL1 RNA, 10 mM potassium phosphate buffer, 250 mM NaCl, 0.1 mM MgCl2,pH 6.4, 90% H2O, 10% D2O	90% H2O/10% D2O	10 mM potassium phosphate buffer, 250 mM NaCl, 0.1 mM Mg Cl2	6.4	ambient	288
4	3D_13C-separated_NOESY	0.75 mM of uniformly 13C, 15N-labeled SL1 RNA, 10 mM potassium phosphate buffer, 250 mM NaCl, 0.1 mM MgCl2, pH 6.4	D2O	10 mM potassium phosphate buffer, 250 mM NaCl, 0.1 mM Mg Cl2	6.4	ambient	303
5	non-decoupled constant-time 1H-13C TROSY-HSQC	0.75 mM of uniformly 13C, 15N-labeled SL1 RNA, 10 mM potassium phosphate buffer, 250 mM NaCl, 0.1 mM MgCl2, pH 6.4, filamentous phage Pf1	D2O	10 mM potassium phosphate buffer, 250 mM NaCl, 0.1 mM Mg Cl2	6.4	ambient	303
6	2D 1H-15N HSQC	0.75 mM of uniformly 13C, 15N-labeled SL1 RNA, 10 mM potassium phosphate buffer, 250 mM NaCl, 0.1 mM MgCl2, pH 6.4, 90% H2O, 10% D2O	90% H2O/10% D2O	10 mM potassium phosphate buffer, 250 mM NaCl, 0.1 mM Mg Cl2	6.4	ambient	288

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600
2	Varian	Unity Inova	900

NMR Refinement
Method	Details	Software
Restrained Metropolis Monte Carlo and restrained minimization in helical parameter's space	The structures are determined based on a total of 842 restraints; 608 are NOE-derived distance restraints, 104 hydrogen bond restraints, and 130 residual dipolar coupling (RDC) restraints	VNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	20
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	VNMR	6.1
2	processing	NMRPipe	2.3	Delaglio
3	iterative matrix relaxation	MARDIGRAS	3.21	Borgias et al
4	data analysis	Sparky	3.110	Goddard
5	refinement	DYANA	1.5	Guntert
6	refinement	miniCarlo		Zhurkin & Ulyanov

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 R01GM133198.