2JR4

NMR Solution Structure of the Anticodon of E.coli TRNA-VAL3 With no Modifications

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H COSY	1.5-2 mM RNA 17mer	100% D2O		6.2	ambient	295
2	2D DQF-COSY	1.5-2 mM RNA 17mer	100% D2O		6.2	ambient	295
3	2D 1H-1H TOCSY	1.5-2 mM RNA 17mer	100% D2O		6.2	ambient	295
4	2D 1H-13C HSQC	1.5-2 mM RNA 17mer	100% D2O		6.2	ambient	295
5	2D 1H-1H NOESY	1.5-2 mM RNA 17mer	100% D2O		6.2	ambient	295
6	2D 1H-1H NOESY	1.5-2 mM RNA 17mer	90% H2O/10% D2O		6.2	ambient	275
7	2D 1H-31P HETCOR	1.5-2 mM RNA 17mer	100% D2O		6.2	ambient	295

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	500
2	Varian	INOVA	600

NMR Refinement
Method	Details	Software
torsion angle dynamics	anneal.inp protocol in CNS	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	60
Conformers Submitted Total Number	11
Representative Model	1 (minimized average structure)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR		Bruker Biospin
2	collection	VNMR		Varian
3	processing	NMRDraw	3.0	Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
4	data analysis	Sparky		Goddard
5	structure solution	CNS	1.1	Brunger, Adams, Clore, Gros, Nilges and Read
6	refinement	CNS	1.1	Brunger, Adams, Clore, Gros, Nilges and Read

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.