2LXG

NMR solution structure of Mu-conotoxin KIIIA

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	2.6 mM entity-1	94% H2O/6% D2O		2.9		283
2	2D 1H-13C HSQC	2.6 mM entity-1	94% H2O/6% D2O		2.9	ambient	278
3	2D 1H-1H TOCSY	2.6 mM entity-1	94% H2O/6% D2O		4.8		278
4	2D DQF-COSY	2.6 mM entity-1	94% H2O/6% D2O		4.8		278
5	2D 1H-1H NOESY	2.6 mM entity-1	94% H2O/6% D2O		4.8		278
6	2D 1H-1H TOCSY	2.6 mM entity-1	94% H2O/6% D2O		2.9	ambient	278
7	2D 1H-1H NOESY	2.6 mM entity-1	94% H2O/6% D2O		2.9	ambient	278
8	2D 1H-1H TOCSY	2.3 mM entity-2	100% D2O		5.3		278
9	2D 1H-1H NOESY	2.3 mM entity-2	100% D2O		5.3		278

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

NMR Refinement
Method	Details	Software
simulated annealing		TopSpin

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin		Bruker Biospin
2	processing	TopSpin		Bruker Biospin
3	chemical shift assignment	XEASY		Bartels et al.
4	peak picking	XEASY		Bartels et al.
5	structure solution	CYANA		Guntert, Mumenthaler and Wuthrich
6	geometry optimization	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
7	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
8	data analysis	ProcheckNMR		Laskowski and MacArthur