1MFY

SOLUTION STRUCTURE OF INFLUENZA A VIRUS C4 PROMOTER

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	Unlabeled RNA, 1mM	90% H2O/10% D2O
2	DQF-COSY	Unlabeled RNA, 1mM	99.96% D2O,
3	2D NOESY	Unlabeled RNA, 1mM	99.96% D2O,
4	3D HCCH-COSY	Uniform labeling with 13C,15N	99.96% D2O,

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	800
2	Varian	INOVA	600

NMR Refinement
Method	Details	Software
distance geometry simulated annealing	The structures are based on a total of 726 restraints, 445 are NOE-derived distance constraints, 196 dihedral angle restraints, 58 hydrogen bonding restraints.	CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	16
Representative Model	1 (minimized average structure)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CNS	1.0	Brunger et al
2	processing	NMRPipe	2.1	Delaglio et al
3	refinement	CNS	1.0	Brunger et al

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.