1A60

NMR STRUCTURE OF A CLASSICAL PSEUDOKNOT: INTERPLAY OF SINGLE-AND DOUBLE-STRANDED RNA, 24 STRUCTURES

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	13C-EDITED/ XFILTERED)NOESY				6.7		303
2	TOCSY				6.7		303
3	(31P SPIN ECHO DIFFERENCE)CTHSQC				6.7		303
4	PCH				6.7		303
5	HCCH-TOCSY				6.7		303
6	CT-TOCSY-HSQC				6.7		303
7	HNCCCH				6.7		303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	UNITY	400
2	Bruker	AM	500
3	Bruker	AMX	600
4	Bruker	AMX	750

NMR Refinement
Method	Details	Software
TORSION ANGLE DYNAMICS/ SIMULATED ANNEALING	REFINEMENT DETAILS CAN BE FOUND IN THE JRNL CITATION ABOVE.	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	LEAST RESTRAINT VIOLATIONS
Conformers Calculated Total Number	140
Conformers Submitted Total Number	24

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR	3.851	BRUNGER
2	structure solution	X-PLOR	3.851

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.