8BWB

Spider toxin Pha1b (PnTx3-6) from Phoneutria nigriventer targeting CaV2.x calcium channels and TRPA1 channel

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	1.7 mM Pha1b, 5 % [U-99% 2H] D2O	95% H2O/5% D2O	1 mM	4.5	AMBIENT Pa	303	Bruker AVANCE III 600
2	2D 1H-1H TOCSY	1.7 mM Pha1b, 5 % [U-99% 2H] D2O	95% H2O/5% D2O	1 mM	4.5	AMBIENT Pa	303	Bruker AVANCE III 600
3	2D 1H-13C HSQC	1.7 mM Pha1b, 5 % [U-99% 2H] D2O	95% H2O/5% D2O	1 mM	4.5	AMBIENT Pa	303	Bruker AVANCE III 600
4	3D 1H-15N NOESY	2.7 mM [U-100% 15N] Pha1b, 5 % [U-99% 2H] D2O, 20 uM sodium acetate	95% H2O/5% D2O	1 mM	4.5	AMBIENT Pa	303	Bruker AVANCE III 600
5	3D 1H-15N TOCSY	2.7 mM [U-100% 15N] Pha1b, 5 % [U-99% 2H] D2O, 20 uM sodium acetate	95% H2O/5% D2O	1 mM	4.5	AMBIENT Pa	303	Bruker AVANCE III 600
6	2D 1H-15N HSQC	2.7 mM [U-100% 15N] Pha1b, 5 % [U-99% 2H] D2O, 20 uM sodium acetate	95% H2O/5% D2O	1 mM	4.5	AMBIENT Pa	303	Bruker AVANCE III 600

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

NMR Refinement
Method	Details	Software
distance geometry		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 (target function)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	CYANA	3.98.13	Guntert, Mumenthaler and Wuthrich
2	chemical shift assignment	CARA	1.9.1.7	Keller and Wuthrich
3	structure calculation	CYANA	3.98.13	Guntert, Mumenthaler and Wuthrich
4	peak picking	CARA	1.9.1.7	Keller and Wuthrich
5	processing	TopSpin	4.0.7	Bruker Biospin