5NPN

Refined structure of cytotoxin I

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H NOESY	20 mM no cytotoxin-1, 50 mM no potassium chloride, 90 % no H2O, 10 % 99.9% D2O, 1 ug/mL no HCl	90% H2O/10% D2O	50 mM mM	6.0	1 bar	323	Bruker DRX 500
2	2D 1H-1H TOCSY	20 mM no cytotoxin-1, 50 mM no potassium chloride, 90 % no H2O, 10 % 99.9% D2O, 1 ug/mL no HCl	90% H2O/10% D2O	50 mM mM	6.0	1 bar	323	Bruker DRX 500
3	2D DQF-COSY	20 mM no cytotoxin-1, 50 mM no potassium chloride, 90 % no H2O, 10 % 99.9% D2O, 1 ug/mL no HCl	90% H2O/10% D2O	50 mM mM	6.0	1 bar	323	Bruker DRX 500
4	2D 1H-1H NOESY	20 mM no cytotoxin-1, 50 mM no potassium chloride, 90 % no H2O, 10 % 99.9% D2O, 1 ug/mL no HCl	90% H2O/10% D2O	50 mM mM	6.0	1 bar	323	Varian UNITY 600
5	2D DQF-COSY	20 mM no cytotoxin-1, 50 mM no potassium chloride, 90 % no H2O, 10 % 99.9% D2O, 1 ug/mL no HCl	90% H2O/10% D2O	50 mM mM	6.0	1 bar	323	Varian UNITY 600
6	diffusion	20 mM no cytotoxin-1, 50 mM no potassium chloride, 90 % no H2O, 10 % 99.9% D2O, 1 ug/mL no HCl	90% H2O/10% D2O	50 mM mM	6.0	1 bar	323	Varian UNITY 600

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

NMR Refinement
Method	Details	Software
torsion angle dynamics	the structures are based on total of 1236 restraints	CYANA

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (fewest violations)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	XwinNMR	3.1.A	BRUKER
2	structure calculation	CYANA	1.0.6	Guntert, Mumenthaler and Wuthrich
3	chemical shift assignment	XEASY	1.2.11	Bartels et al.
4	peak picking	ACME	2001.085.20.47	Delaglio, Zhengrong and Bax
5	data analysis	NMRPipe	April 12, 2001	Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax