2MPQ

Solution structure of the sodium channel toxin Hd1a

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	20 mM sodium acetate, 0.5 mM [U-98% 13C; U-98% 15N] Hd1a	95% H2O/5% D2O	20	4.9	ambient	298
2	3D HNCO	20 mM sodium acetate, 0.5 mM [U-98% 13C; U-98% 15N] Hd1a	95% H2O/5% D2O	20	4.9	ambient	298
3	3D HNCACB	20 mM sodium acetate, 0.5 mM [U-98% 13C; U-98% 15N] Hd1a	95% H2O/5% D2O	20	4.9	ambient	298
4	3D CBCA(CO)NH	20 mM sodium acetate, 0.5 mM [U-98% 13C; U-98% 15N] Hd1a	95% H2O/5% D2O	20	4.9	ambient	298
5	3D 1H-13C NOESY aliphatic	20 mM sodium acetate, 0.5 mM [U-98% 13C; U-98% 15N] Hd1a	95% H2O/5% D2O	20	4.9	ambient	298
6	3D 1H-13C NOESY aromatic	20 mM sodium acetate, 0.5 mM [U-98% 13C; U-98% 15N] Hd1a	95% H2O/5% D2O	20	4.9	ambient	298
7	3D 1H-15N NOESY	20 mM sodium acetate, 0.5 mM [U-98% 13C; U-98% 15N] Hd1a	95% H2O/5% D2O	20	4.9	ambient	298
8	3D HBHA(CO)NH	20 mM sodium acetate, 0.5 mM [U-98% 13C; U-98% 15N] Hd1a	95% H2O/5% D2O	20	4.9	ambient	298
9	4D HCC(CO)NH	20 mM sodium acetate, 0.5 mM [U-98% 13C; U-98% 15N] Hd1a	95% H2O/5% D2O	20	4.9	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	900

NMR Refinement
Method	Details	Software
torsion angle dynamics		TALOS

NMR Ensemble Information
Conformer Selection Criteria	Best MobProbity score
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (best mobprobity score)

Additional NMR Experimental Information
Details	NOESY MIXING TIME 200ms

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	geometry optimization	TALOS	+	Cornilescu, Delaglio and Bax
2	structure solution	CYANA	3.0	Guntert, Mumenthaler and Wuthrich
3	collection	TopSpin	3.1	Bruker Biospin
4	processing	Rowland_NMR_Toolkit	3	Stern, Mobli, Hoch
5	data analysis	XEASY		Bartels et al.
6	chemical shift assignment	XEASY		Bartels et al.
7	refinement	CYANA		Guntert, Mumenthaler and Wuthrich