Experiment: 1K64

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	5mM a-conotoxin EI	90% H2O/10% D2O	0	4.3	1 atm	278
2	PE-COSY	5mM a-conotoxin EI	90% H2O/10% D2O	0	4.3	1 atm	278

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600
2	Varian	UNITY	500

NMR Refinement
Method	Details	Software
distance geometry, simulated annealing, matrix relaxation		VNMR

NMR Ensemble Information
Conformer Selection Criteria	back calculated data agree with experimental NOESY spectrum,structures with acceptable covalent geometry,structures with the least restraint violations
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20
Representative Model	10 (closest to the average)

Additional NMR Experimental Information
Details	tocsy, cosy, roesy

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	VNMR	5.3B	Varain Inc.
2	processing	Felix	95.0.	MSI Inc.
3	data analysis	DGII	3.0.	MSI Inc.
4	refinement	Discover	2.9.7	MSI Inc.
5	iterative matrix relaxation	CORMA	5.2	James, T.
6	iterative matrix relaxation	MARDIGRAS	3.2.	James, T.

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.