Experiment: 5I2P

Resonance assignments and NMR structure determination of tarantula toxin- W7A mutant of mu-TRTX-Pre1a (W6A in native sequence numbering)

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	300 uM [U-99% 13C; U-99% 15N] W7A-mu-TRTX-Pre1a, 10 mM sodium phosphate, 5 % D2O	95% H2O/5% D2O	10 mM	6	1 atm	298	Bruker AVANCE II 900
2	3D CBCA(CO)NH	300 uM [U-99% 13C; U-99% 15N] W7A-mu-TRTX-Pre1a, 10 mM sodium phosphate, 5 % D2O	95% H2O/5% D2O	10 mM	6	1 atm	298	Bruker AVANCE II 900
3	3D HNCO	300 uM [U-99% 13C; U-99% 15N] W7A-mu-TRTX-Pre1a, 10 mM sodium phosphate, 5 % D2O	95% H2O/5% D2O	10 mM	6	1 atm	298	Bruker AVANCE II 900
4	3D HNCACB	300 uM [U-99% 13C; U-99% 15N] W7A-mu-TRTX-Pre1a, 10 mM sodium phosphate, 5 % D2O	95% H2O/5% D2O	10 mM	6	1 atm	298	Bruker AVANCE II 900
5	3D 1H-15N NOESY	300 uM [U-99% 13C; U-99% 15N] W7A-mu-TRTX-Pre1a, 10 mM sodium phosphate, 5 % D2O	95% H2O/5% D2O	10 mM	6	1 atm	298	Bruker AVANCE II 900
10	3D HBHA(CO)NH	300 uM [U-99% 13C; U-99% 15N] W7A-mu-TRTX-Pre1a, 10 mM sodium phosphate, 5 % D2O	95% H2O/5% D2O	10 mM	6	1 atm	298	Bruker AVANCE II 900
9	3D 1H-13C NOESY aliphatic	300 uM [U-99% 13C; U-99% 15N] W7A-mu-TRTX-Pre1a, 10 mM sodium phosphate, 5 % D2O	95% H2O/5% D2O	10 mM	6	1 atm	298	Bruker AVANCE II 900
8	3D 1H-13C NOESY aromatic	300 uM [U-99% 13C; U-99% 15N] W7A-mu-TRTX-Pre1a, 10 mM sodium phosphate, 5 % D2O	95% H2O/5% D2O	10 mM	6	1 atm	298	Bruker AVANCE II 900
7	4D HCC(co)NH-TOCSY	300 uM [U-99% 13C; U-99% 15N] W7A-mu-TRTX-Pre1a, 10 mM sodium phosphate, 5 % D2O	95% H2O/5% D2O	10 mM	6	1 atm	298	Bruker AVANCE II 900

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

NMR Refinement
Method	Details	Software
torsion angle dynamics		CYANA

NMR Ensemble Information
Conformer Selection Criteria	structures with acceptable covalent geometry
Conformers Calculated Total Number	30
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	Best stereochemical properties judged by Molprobity

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	CcpNMR		CCPN
2	refinement	CYANA		Guntert, Mumenthaler and Wuthrich
3	collection	TopSpin		Bruker Biospin
4	peak picking	CcpNMR		CCPN
5	processing	Rowland NMR Toolkit		Jeff Hoch
6	structure calculation	CYANA		Guntert, Mumenthaler and Wuthrich