5T3M

Solution structure of a triple mutant of HwTx-IV - a potent blocker of Nav1.7

SOLUTION NMR

---

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	400 uM [U-99% 13C; U-99% 15N] [m3]-HwTx-IV, 20 mM sodium acetate, 5 % [U-100% 2H] D2O	95% H2O/5% D2O	20 mM	5	1 atm	298	Bruker AVANCE III 900
2	3D HNCO	400 uM [U-99% 13C; U-99% 15N] [m3]-HwTx-IV, 20 mM sodium acetate, 5 % [U-100% 2H] D2O	95% H2O/5% D2O	20 mM	5	1 atm	298	Bruker AVANCE III 900
3	3D HBHA(CO)NH	400 uM [U-99% 13C; U-99% 15N] [m3]-HwTx-IV, 20 mM sodium acetate, 5 % [U-100% 2H] D2O	95% H2O/5% D2O	20 mM	5	1 atm	298	Bruker AVANCE III 900
4	3D HCCH-TOCSY	400 uM [U-99% 13C; U-99% 15N] [m3]-HwTx-IV, 20 mM sodium acetate, 5 % [U-100% 2H] D2O	95% H2O/5% D2O	20 mM	5	1 atm	298	Bruker AVANCE III 900
5	3D CBCA(CO)NH	400 uM [U-99% 13C; U-99% 15N] [m3]-HwTx-IV, 20 mM sodium acetate, 5 % [U-100% 2H] D2O	95% H2O/5% D2O	20 mM	5	1 atm	298	Bruker AVANCE III 900
12	3D HNCACB	400 uM [U-99% 13C; U-99% 15N] [m3]-HwTx-IV, 20 mM sodium acetate, 5 % [U-100% 2H] D2O	95% H2O/5% D2O	20 mM	5	1 atm	298	Bruker AVANCE III 900
11	4D HC(CO)NH	400 uM [U-99% 13C; U-99% 15N] [m3]-HwTx-IV, 20 mM sodium acetate, 5 % [U-100% 2H] D2O	95% H2O/5% D2O	20 mM	5	1 atm	298	Bruker AVANCE III 900
10	2D 1H-15N HSQC - T1 relaxation	400 uM [U-99% 13C; U-99% 15N] [m3]-HwTx-IV, 20 mM sodium acetate, 5 % [U-100% 2H] D2O	95% H2O/5% D2O	20 mM	5	1 atm	298	Bruker AVANCE III 700
9	2D 1H-15N HSQC - T2 relaxation	400 uM [U-99% 13C; U-99% 15N] [m3]-HwTx-IV, 20 mM sodium acetate, 5 % [U-100% 2H] D2O	95% H2O/5% D2O	20 mM	5	1 atm	298	Bruker AVANCE III 700
8	2D 1H-15N HSQC - NOE	400 uM [U-99% 13C; U-99% 15N] [m3]-HwTx-IV, 20 mM sodium acetate, 5 % [U-100% 2H] D2O	95% H2O/5% D2O	20 mM	5	1 atm	298	Bruker AVANCE III 700
7	3D 1H-13C NOESY aliphatic	400 uM [U-99% 13C; U-99% 15N] [m3]-HwTx-IV, 20 mM sodium acetate, 5 % [U-100% 2H] D2O	95% H2O/5% D2O	20 mM	5	1 atm	298	Bruker AVANCE III 900
6	3D 1H-13C NOESY aromatic	400 uM [U-99% 13C; U-99% 15N] [m3]-HwTx-IV, 20 mM sodium acetate, 5 % [U-100% 2H] D2O	95% H2O/5% D2O	20 mM	5	1 atm	298	Bruker AVANCE III 900
13	3D 1H-15N NOESY	400 uM [U-99% 13C; U-99% 15N] [m3]-HwTx-IV, 20 mM sodium acetate, 5 % [U-100% 2H] D2O	95% H2O/5% D2O	20 mM	5	1 atm	298	Bruker AVANCE III 900

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III	900
2	Bruker	AVANCE III	700

NMR Refinement
Method	Details	Software
torsion angle dynamics	automated NOE assignments	CYANA

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	Analysis		CCPN
2	refinement	CYANA		Guntert, Mumenthaler and Wuthrich
3	processing	ROWLAND NMR TOOLKIT	3	JC Hoch, AS Stern University of Connecticut, Health Centre
4	data analysis	TALOS	n	Cornilescu, Delaglio and Bax
5	collection	TopSpin		Bruker Biospin