7SKC

Solution structure of spider toxin Ssp1a

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D TOCSY	0.5 mM Ssp1a	90% H2O/10% D2O	0 mM	4	1 atm	290	Bruker AVANCE III HD 600
2	2D COSY	0.5 mM Ssp1a	90% H2O/10% D2O	0 mM	4	1 atm	290	Bruker AVANCE III HD 600
3	2D NOESY	0.5 mM Ssp1a	90% H2O/10% D2O	0 mM	4	1 atm	290	Bruker AVANCE III HD 600
4	2D 1H-15N HSQC	0.5 mM Ssp1a	90% H2O/10% D2O	0 mM	4	1 atm	290	Bruker AVANCE III HD 600
5	2D 1H-13C HSQC	0.5 mM Ssp1a	90% H2O/10% D2O	0 mM	4	1 atm	290	Bruker AVANCE III HD 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III HD	600

NMR Refinement
Method	Details	Software
torsion angle dynamics		CYANA

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	chemical shift assignment	CcpNmr Analysis		CCPN
5	collection	TopSpin		Bruker Biospin
2	refinement	CYANA		Guntert, Mumenthaler and Wuthrich
4	peak picking	CcpNmr Analysis		CCPN
3	structure calculation	CYANA		Guntert, Mumenthaler and Wuthrich