2M36

Solution structure of the insecticidal spider-venom peptide Aps III

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D 1H-13C NOESY aliphatic	450 uM [U-100% 13C; U-100% 15N] As1a, 20 mM sodium phosphate	100% D2O		6.0	ambient	298
2	3D 1H-13C NOESY aromatic	450 uM [U-100% 13C; U-100% 15N] As1a, 20 mM sodium phosphate	100% D2O		6.0	ambient	298
3	3D 1H-15N NOESY	450 uM [U-100% 13C; U-100% 15N] As1a, 20 mM sodium phosphate	95% H2O/5% D2O		6.0	ambient	298
4	3D HNCO	450 uM [U-100% 13C; U-100% 15N] As1a, 20 mM sodium phosphate	95% H2O/5% D2O		6.0	ambient	298
5	3D HNCACB	450 uM [U-100% 13C; U-100% 15N] As1a, 20 mM sodium phosphate	95% H2O/5% D2O		6.0	ambient	298
6	3D CBCA(CO)NH	450 uM [U-100% 13C; U-100% 15N] As1a, 20 mM sodium phosphate	95% H2O/5% D2O		6.0	ambient	298
7	3D C(CO)NH	450 uM [U-100% 13C; U-100% 15N] As1a, 20 mM sodium phosphate	95% H2O/5% D2O		6.0	ambient	298
8	3D H(CCO)NH	450 uM [U-100% 13C; U-100% 15N] As1a, 20 mM sodium phosphate	95% H2O/5% D2O		6.0	ambient	298
9	4D HC(CO)NH	450 uM [U-100% 13C; U-100% 15N] As1a, 20 mM sodium phosphate	95% H2O/5% D2O		6.0	ambient	298

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

NMR Refinement
Method	Details	Software
torsion angle dynamics		XEASY

NMR Ensemble Information
Conformer Selection Criteria	Best MolProbity scores
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest molprobity score)

Additional NMR Experimental Information
Details	All NMR data except NOESY experiments were acquired using nonuniform sampling and transformed using MaxEnt.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	XEASY		Bartels et al.
2	peak picking	XEASY		Bartels et al.
3	structure solution	CYANA		Guntert, Mumenthaler and Wuthrich
4	secondary structure assignment	ProcheckNMR		Laskowski and MacArthur
5	analysis of stereochemical quality	MolProbity		Davis IW et al.
6	estimation of dihedral angles	TALOS		Cornilescu, Delaglio and Bax
7	nmr data transformation	Rowland_NMR_Toolkit		Hoch, Stern et al.
8	refinement	CYANA		Hoch, Stern et al.