2AP0

Solution Structure of the C27A ScYLV P1-P2 Frameshifting Pseudoknot, 20 Lowest Energy Structures

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2.7mM C27A ScYLV; 100mM KCl; 5mM MgCl2	90% H2O/10% D2O	100mM KCl, 5mM MgCl2	6.0	ambient	283
2	2D NOESY	2.7mM C27A ScYLV; 100mM KCl; 5mM MgCl2	100% D2O	100mM KCl, 5mM MgCl2	6.0	ambient	298
3	2D TOCSY	2.7mM C27A ScYLV; 100mM KCl; 5mM MgCl2	100% D2O	100mM KCl, 5mM MgCl2	6.0	ambient	298
4	TROSY	2.7mM C27A ScYLV; 100mM KCl; 5mM MgCl2	100% D2O

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	500

NMR Refinement
Method	Details	Software
simulated annealing starting with random coordinates followed by refinement with residual dipolar couplings		NMRPipe

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe	Mac OS X version	F. Delaglio, S. Grzesiek, G. W. Vuister, G. Zhu, J. Pfeifer and A. Bax
2	data analysis	Sparky	3	T. D. Goddard and D. G. Kneller
3	refinement	XPLOR-NIH	2.10	G. Marius Clore , John Kuszewski, Charles D. Schwieters, and Nico Tjandra

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.