1TR6

NMR solution structure of omega-conotoxin [K10]GVIA, a cyclic cysteine knot peptide

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D TOCSY	2 mM [K10]GVIA, DSS	95% H2O/5% D2O		3.5	ambient	275
2	2D NOESY	2 mM [K10]GVIA, DSS	95% H2O/5% D2O		3.5	ambient	275
3	DQF-COSY	2 mM [K10]GVIA, DSS	95% H2O/5% D2O		3.5	ambient	275
4	2D TOCSY	2 mM [K10]GVIA, DSS	100% D2O		3.5	ambient	275
5	2D NOESY	2 mM [K10]GVIA, DSS	100% D2O		3.5	ambient	275
6	E-COSY	2 mM [K10]GVIA, DSS	100% D2O		3.5	ambient	275

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	ARX	500
2	Bruker	DMX	750
3	Bruker	Avance	600

NMR Refinement
Method	Details	Software
The structures were calculated using torsion angle dynamics/simulated annealing protocol	A total of 467 NOE distance restraints (including H-bonds) and 22 dihedral angle restraints (16 phi and 6 chi) were used during structure calculations.	XWINNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XWINNMR	3.5
2	structure solution	X-PLOR	3.851
3	refinement	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.