1HVW

HAIRPINLESS MUTANT OF OMEGA-ATRACOTOXIN-HV1A

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D_NOESY	3 mM hairpinless peptide, 0.1 mM TSP, 25 micromolar chloramphenicol	5% D2O, 95% H2O	0.005	4.9	1 atm	298
2	2D_TOCSY	3 mM hairpinless peptide, 0.1 mM TSP, 25 micromolar chloramphenicol	5% D2O, 95% H2O	0.005	4.9	1 atm	298
3	E-COSY	3 mM hairpinless peptide, 0.1 mM TSP, 25 micromolar chloramphenicol	5% D2O, 95% H2O	0.005	4.9	1 atm	298
4	2D_NOESY	3 mM hairpinless peptide, 0.1 mM TSP, 25 micromolar chloramphenicol	100% D2O	0.005	4.9	1 atm	298
5	E-COSY	3 mM hairpinless peptide, 0.1 mM TSP, 25 micromolar chloramphenicol	100% D2O	0.005	4.9	1 atm	298
6	2D_TOCSY	3 mM hairpinless peptide, 0.1 mM TSP, 25 micromolar chloramphenicol	100% D2O	0.005	4.9	1 atm	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	600

NMR Refinement
Method	Details	Software
Torsion angle dynamics followed by dynamical simulated annealing	The structures are based on a total of 231 NOE-derived distance restraints, 19 dihedral-angle restraints, and 16 restraints defining 8 hydrogen bonds.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (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	data analysis	XwinNMR	2.0	Bruker
2	data analysis	XEASY	1.3.13	Tae-he Xia and Christian Bartels
3	structure solution	DYANA	1.5	Peter Guntert, Christian Mumenthaler, and Torsten Herrman
4	refinement	X-PLOR	3.1	Axel Brunger