7R6P

Solution structure of peptide toxin MIITX2-Mg1a from the venom of the Australian giant red bull ant Myrmecia gulosa

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	350 uM [U-100% 13C; U-100% 15N] MIITX2-Mg1a, 50 mM MES	95% H2O/5% D2O	50 mM	6.5	1 atm	293	Bruker AVANCE III 600
2	3D CBCA(CO)NH	350 uM [U-100% 13C; U-100% 15N] MIITX2-Mg1a, 50 mM MES	95% H2O/5% D2O	50 mM	6.5	1 atm	293	Bruker AVANCE III 600
3	3D HNCACB	350 uM [U-100% 13C; U-100% 15N] MIITX2-Mg1a, 50 mM MES	95% H2O/5% D2O	50 mM	6.5	1 atm	293	Bruker AVANCE III 600
4	3D HCCH-COSY	350 uM [U-100% 13C; U-100% 15N] MIITX2-Mg1a, 50 mM MES	95% H2O/5% D2O	50 mM	6.5	1 atm	293	Bruker AVANCE III 600
5	2D 1H-13C HSQC	350 uM [U-100% 13C; U-100% 15N] MIITX2-Mg1a, 50 mM MES	95% H2O/5% D2O	50 mM	6.5	1 atm	293	Bruker AVANCE III 600
6	3D 1H-13C NOESY aliphatic	350 uM [U-100% 13C; U-100% 15N] MIITX2-Mg1a, 50 mM MES	95% H2O/5% D2O	50 mM	6.5	1 atm	293	Bruker AVANCE III 900
7	3D 1H-13C NOESY aromatic	350 uM [U-100% 13C; U-100% 15N] MIITX2-Mg1a, 50 mM MES	95% H2O/5% D2O	50 mM	6.5	1 atm	293	Bruker AVANCE III 900
8	3D 1H-15N NOESY	350 uM [U-100% 13C; U-100% 15N] MIITX2-Mg1a, 50 mM MES	95% H2O/5% D2O	50 mM	6.5	1 atm	293	Bruker AVANCE III 900
9	3D HNCO	350 uM [U-100% 13C; U-100% 15N] MIITX2-Mg1a, 50 mM MES	95% H2O/5% D2O	50 mM	6.5	1 atm	293	Bruker AVANCE III 600
10	3D HNCA	350 uM [U-100% 13C; U-100% 15N] MIITX2-Mg1a, 50 mM MES	95% H2O/5% D2O	50 mM	6.5	1 atm	293	Bruker AVANCE III 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III	600
2	Bruker	AVANCE III	900

NMR Refinement
Method	Details	Software
torsion angle dynamics		CYANA

NMR Ensemble Information
Conformer Selection Criteria	structures with best stereochemical properties
Conformers Calculated Total Number	30
Conformers Submitted Total Number	20
Representative Model	1 (target function)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	TopSpin	v.3.2	Bruker Biospin
2	refinement	CYANA		Guntert, Mumenthaler and Wuthrich
3	chemical shift assignment	CcpNmr Analysis		CCPN
4	peak picking	CcpNmr Analysis		CCPN
5	geometry optimization	TALOS-N		Yang Shen and Ad Bax
6	structure calculation	CYANA		Guntert, Mumenthaler and Wuthrich

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.