2FEK | pdb_00002fek

Structure of a protein tyrosine phosphatase

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_13C-separated_NOESY	~1mM WZB U-15N, 13C; 50mM sodium phosphate, 50mM NaCl buffer; 25mM DTT; 5mM EDTA; pH 6	90% H2O/10% D2O	100mM	6	ambient	298
2	3D_15N-separated_NOESY	~1mM WZB U-15N; 50mM sodium phosphate, 50mM NaCl buffer; 25mM DTT; 5mM EDTA; pH 6	90% H2O/10% D2O	100mM	6	ambient	298

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

NMR Refinement
Method	Details	Software
200 structures were generated in CYANA. The 100 structures with lowest energy were further refined in AMBER7. The 20 lowest energy structures were finally selected.	A total of 4689 restraints were used. Included are 1630 ambiguous and 2640 unambiguous NOE-derived distances, 100 hydrogen bond restraints, 190 backbone dihedral angles, 32 side-chain chi1 and 97 1H-15N residual dipolar couplings values.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	97 1H-15N residual dipolar, measured in PEG/hexanol (5.5 wt%, molar ratio=0.92), were included in structure calculation.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	3.5	Bruker
2	processing	NMRPipe	1	Delaglio
3	structure solution	CYANA	1.2	Guentert
4	refinement	Amber	7	Case
5	data analysis	NMRView	5	Blevins