Experiment: 1HOQ

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	DQF-COSY	1mM hairpin	D2O		7.0	1 atm	293
2	2D-NOESY	1mM hairpin	D2O		7.0	1 atm	293

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	500

NMR Refinement
Method	Details	Software
simulated annealing	The structures were refined by NMR-restrained molecular dynamics (14 ps, 300-1000 K) with final energy minimization	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	all calculated structures submitted
Conformers Calculated Total Number	10
Conformers Submitted Total Number	10
Representative Model	(the hairpin stem structure closest to the average)

Additional NMR Experimental Information
Details	This structure was determined using standard 2D homo- and heteronuclear techniques: 2D-NOESY, DQF-COSY, TOCSY, H,C-HMQC, H,P-HetCOSY

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR	3.843	Brunger
2	data analysis	X-PLOR		Brunger

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.