2MD0

Solution structure of ShK-like immunomodulatory peptide from Ancylostoma caninum (hookworm)

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	1 mM [U-100% 13C; U-100% 15N] entity, 10 mM sodium phosphate	90% H2O/10% D2O		5.4	ambient atm	298
2	3D HNCA	1 mM [U-100% 13C; U-100% 15N] entity, 10 mM sodium phosphate	90% H2O/10% D2O		5.4	ambient atm	298
3	3D HNCACB	1 mM [U-100% 13C; U-100% 15N] entity, 10 mM sodium phosphate	90% H2O/10% D2O		5.4	ambient atm	298
4	3D HN(CO)CA	1 mM [U-100% 13C; U-100% 15N] entity, 10 mM sodium phosphate	90% H2O/10% D2O		5.4	ambient atm	298
5	3D CBCA(CO)NH	1 mM [U-100% 13C; U-100% 15N] entity, 10 mM sodium phosphate	90% H2O/10% D2O		5.4	ambient atm	298
6	3D 1H-15N NOESY	1 mM [U-100% 13C; U-100% 15N] entity, 10 mM sodium phosphate	90% H2O/10% D2O		5.4	ambient atm	298
7	3D 1H-13C NOESY aliphatic	1 mM [U-100% 13C; U-100% 15N] entity, 10 mM sodium phosphate	90% H2O/10% D2O		5.4	ambient atm	298
8	3D 1H-13C NOESY aromatic	1 mM [U-100% 13C; U-100% 15N] entity, 10 mM sodium phosphate	90% H2O/10% D2O		5.4	ambient atm	298
9	3D HNCO	1 mM [U-100% 13C; U-100% 15N] entity, 10 mM sodium phosphate	90% H2O/10% D2O		5.4	ambient atm	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	500
2	Bruker	AVANCE	800
3	Bruker	AVANCE	600

NMR Refinement
Method	Details	Software
simulated annealing		TopSpin

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	30
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin		Bruker Biospin
2	structure solution	CYANA		Guntert, Mumenthaler and Wuthrich
3	chemical shift assignment	XEASY		Bartels et al.
4	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
5	data analysis	CcpNmr		CCPN