1NXN

SOLUTION STRUCTURE OF CONTRYPHAN-VN

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D TOCSY	5 MM PROTEIN	H2O+D2O, D2O		3.5	AMBIENT	298
2	2D ROESY	5 MM PROTEIN	H2O+D2O, D2O		3.5	AMBIENT	298
3	COSY	5 MM PROTEIN	H2O+D2O, D2O		3.5	AMBIENT	298
4	1H- 15N HSQC	5 MM PROTEIN	H2O+D2O, D2O		3.5	AMBIENT	298
5	1H-13C HMQC	5 MM PROTEIN	H2O+D2O, D2O		3.5	AMBIENT	298
6	1H-13C HSQC-TOCSY	5 MM PROTEIN	H2O+D2O, D2O		3.5	AMBIENT	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	400

NMR Refinement
Method	Details	Software
simulated annealing		XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	FEWEST RESTRAINTS VIOLATIONS, LOWEST ENERGY
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (closest to the average)

Additional NMR Experimental Information
Details	HETERONUCLEAR EXPERIMENTS WERE PERFORMED AT NATURAL ABUNDANCE

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	XwinNMR
2	structure solution	NMRPipe
3	structure solution	NMRView
4	structure solution	XPLOR	1.5
5	refinement	XPLOR	1.5

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.