2GW9

High-resolution solution structure of the mouse defensin Cryptdin4

SOLUTION NMR

---

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	1.5 mM Cryptdin4; 90% H2O, 10% D2O	90% H2O/10% D2O	0	4.6	ambient	298
2	2D TOCSY	1.5 mM Cryptdin4; 90% H2O, 10% D2O	90% H2O/10% D2O	0	4.6	ambient	298
3	DQF-COSY	1.5 mM Cryptdin4; 90% H2O, 10% D2O	90% H2O/10% D2O	0	4.6	ambient	298
4	2D NOESY	1.5 mM Cryptdin4; 100% D2O	100% D2O	0	4.6	ambient	298
5	2D TOCSY	1.5 mM Cryptdin4; 100% D2O	100% D2O	0	4.6	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600

NMR Refinement
Method	Details	Software
Simulated annealing using torsion angle dynamics followed by refinement in explicit solvent using Cartesian dynamics within CNS.		XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations,structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	This structure was determined using standard 2D homonuclear techniques.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	1.3.5	Bruker
2	data analysis	CARA	1.0	Wuthrich, K. et al.
3	structure solution	CYANA	2.0	Hermann, T. et al.
4	refinement	CNS	1.0	Brunger, A.T. et al.