1RYG

Three dimensional solution structure of the R29A MUTANT of sodium channels inhibitor HAINANTOXIN-IV by 2D 1H-NMR

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	NOESY	5.0mM	20mM deuterium acetic acid BU, 90% H2O, 10% D2O	20	4.00	1 atm	295
2	DQF-COSY	5.0mM	20mM deuterium acetic acid BU, 90% H2O, 10% D2O	20	4.00	1 atm	295
3	TOCSY	5.0mM	20mM deuterium acetic acid BU, 90% H2O, 10% D2O	20	4.00	1 atm	295

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

NMR Refinement
Method	Details	Software
simulated annealing	the structures are based on 366 NOE- derived distance constraints, 15 dihedral angle restraints, 9 fake distance restraints from disulfide bonds and 12 hydrogen- bond constrains.	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20
Representative Model	13 (lowest energy)

Additional NMR Experimental Information
Details	this structure was determined using standard 2D homonuclear techniques.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR	3.851
2	processing	Felix	98.0

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.