1XKE

Solution structure of the second Ran-binding domain from human RanBP2

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	1.0mM RanBD2 U-15N; 150mM Na2SO4; 10mM DTE; 0.5mM EDTA; 1mM NaN3; 0.1 mM DSS; 10mM potassium phosphate buffer at pH 6.5;	92% H2O, 8%D2O	150 mM Na2SO4	6.5	ambient	298
2	2D NOESY	1.0mM RanBD2 U-15N; 150mM Na2SO4; 10mM DTE; 0.5mM EDTA; 1mM NaN3; 0.1mM DSS; 10mM potassium phosphate buffer at pH 6.5;	100% D2O	150 mM Na2SO4	6.5	ambient	298
3	3D_15N-separated_NOESY	1.4mM RanBD2 U-13C; U-15N; 150mM Na2SO4; 10mM DTE; 0.5 mM EDTA; 1mM NaN3; 0.1mM DSS; 10mM potassium phosphate buffer at pH 6.5;	92% H2O, 8%D2O	150 mM Na2SO4	6.5	ambient	298
4	3D_13C-separated_NOESY	0.7mM RanBD2 U-13C; U-15N; 150mM Na2SO4; 10mM DTE; 0.5mM EDTA; 1mM NaN3; 0.1mM DSS; 10mM potassium phosphate buffer at pH 6.5;	100% D2O	150 mM Na2SO4	6.5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	600
2	Bruker	DRX	800

NMR Refinement
Method	Details	Software
simulated annealing	The structures are based on a total of 1492 restraints (1281 NOE-derived distance restraints, 182 dihedral angle restraints and 29 hydrogen bond restraints). The structures were also refined in water using XPLOR-NIH 2.9.6 using the protocol of Linge et al. (Linge, J. P., Williams, M. A., Spronk, C. A., Bonvin, A. M., & Nilges, M. ,2003. Refinement of protein structures in explicit solvent. Proteins 50, 496-506).	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	2.6	Bruker
2	processing	XwinNMR	2.6	Bruker
3	data analysis	AUREMOL	2.0.3	Gronwald,W. and Kalbitzer,H.R.
4	structure solution	CNS	1.1
5	refinement	CNS	1.1
6	structure solution	XPLOR-NIH	2.9.6