2LDF

Solution structure of the long sarafotoxin srtx-m

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H COSY	1.5 mM srtx-m	90% H2O/10% D2O	0	5	ambient	298
2	2D 1H-1H TOCSY	1.5 mM srtx-m	90% H2O/10% D2O	0	5	ambient	298
3	2D 1H-1H NOESY	1.5 mM srtx-m	90% H2O/10% D2O	0	5	ambient	298
4	2D 1H-1H TOCSY	1.5 mM srtx-m	90% H2O/10% D2O	0	5	ambient	308
5	2D 1H-1H NOESY	1.5 mM srtx-m	90% H2O/10% D2O	0	5	ambient	308
6	2D 1H-1H TOCSY	1.5 mM srtx-m	90% H2O/10% D2O	0	5	ambient	298
7	2D 1H-1H NOESY	1.5 mM srtx-m	90% H2O/10% D2O	0	5	ambient	298
8	2D 1H-1H NOESY	1.5 mM srtx-m	90% H2O/10% D2O	0	5	ambient	308

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

NMR Refinement
Method	Details	Software
torsion angle dynamics	Of the 200 calculated conformers, the 80 conformers with the lowest total energy were refined in water. The 10 refined conformers of lowest energy represent the final ensemble.	VnmrJ

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	VnmrJ		Varian
2	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	data analysis	NMRView		Johnson, One Moon Scientific
4	peak picking	NMRView		Johnson, One Moon Scientific
5	chemical shift assignment	NMRView		Johnson, One Moon Scientific
6	structure solution	ARIA		Linge, O'Donoghue and Nilges
7	refinement	ARIA		Linge, O'Donoghue and Nilges