2KRP

Solution structure of the E. coli tRNA-Arg2(acg) anticodon stem and loop

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D DQF-COSY	1 mM RNA (5'-R(*CP*UP*CP*GP*GP*CP*UP*AP*CP*GP*AP*AP*CP*CP*GP*AP*G)-3')-2	100% D2O	20	6.8	ambient	298
2	2D 1H-1H NOESY	1 mM RNA (5'-R(*CP*UP*CP*GP*GP*CP*UP*AP*CP*GP*AP*AP*CP*CP*GP*AP*G)-3')-1	90% H2O/10% D2O	20	6.8	ambient	298
3	2D 1H-1H NOESY	1 mM RNA (5'-R(*CP*UP*CP*GP*GP*CP*UP*AP*CP*GP*AP*AP*CP*CP*GP*AP*G)-3')-2	100% D2O	20	6.8	ambient	298
4	2D 1H-1H COSY	1 mM RNA (5'-R(*CP*UP*CP*GP*GP*CP*UP*AP*CP*GP*AP*AP*CP*CP*GP*AP*G)-3')-1	90% H2O/10% D2O	20	6.8	ambient	298
5	2D 1H-13C HSQC	1 mM RNA (5'-R(*CP*UP*CP*GP*GP*CP*UP*AP*CP*GP*AP*AP*CP*CP*GP*AP*G)-3')-2	100% D2O	20	6.8	ambient	298
6	2D 1H-1H TOCSY	1 mM RNA (5'-R(*CP*UP*CP*GP*GP*CP*UP*AP*CP*GP*AP*AP*CP*CP*GP*AP*G)-3')-1	90% H2O/10% D2O	20	6.8	ambient	298
7	2D 31P-1H HETCOR	1 mM RNA (5'-R(*CP*UP*CP*GP*GP*CP*UP*AP*CP*GP*AP*AP*CP*CP*GP*AP*G)-3')-2	100% D2O	20	6.8	ambient	298

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

NMR Refinement
Method	Details	Software
simulated annealing		CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	10
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CNS	1.21	Brunger, Adams, Clore, Gros, Nilges and Read
2	data analysis	Sparky		Goddard
3	peak picking	Sparky		Goddard
4	data analysis	MOLMOL	2.6	Koradi, Billeter and Wuthrich
5	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
6	data analysis	NMRDraw		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
7	collection	VnmrJ		Varian
8	collection	TopSpin		Bruker Biospin
9	collection	XwinNMR		Bruker Biospin
10	refinement	CNS	1.21	Brunger, Adams, Clore, Gros, Nilges and Read