1EXK | pdb_00001exk

SOLUTION STRUCTURE OF THE CYSTEINE-RICH DOMAIN OF THE ESCHERICHIA COLI CHAPERONE PROTEIN DNAJ.

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	600 uM DnaJ CRD U-15N; 20 mM Tris-d11 pH 6.8; 300 uM ZnCl2; 50 mM NaCl;	95% H2O/5% D2O	50 mM	6.8	1 atm	293
2	3D_13C-separated_NOESY	600 uM DnaJ CRD U-15N,13C; 20 mM Tris-d11 pH 6.8; 300 uM ZnCl2; 50 mM NaCl; 2 mM DTT; 0.02% NaN3	95% H2O/5% D2O	50 mM	6.8	1 atm	293
3	13C/15N CN-NOESY	600 uM DnaJ CRD U-15N,13C; 20 mM Tris-d11 pH 6.8; 300 uM ZnCl2; 50 mM NaCl; 2 mM DTT; 0.02% NaN3	95% H2O/5% D2O	50 mM	6.8	1 atm	293
4	HNHA	600 uM DnaJ CRD U-15N; 20 mM Tris-d11 pH 6.8; 300 uM ZnCl2; 50 mM NaCl;	95% H2O/5% D2O	50 mM	6.8	1 atm	293

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AMX	500
2	Bruker	DRX	600
3	Bruker	DMX	750

NMR Refinement
Method	Details	Software
torsion angle dynamics followed by simulated annealing	The structures are based on 1361 unique NOE-based distance restraints and 99 torsion angle restaints and 24 stereo assignments.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations,structures with the lowest energy
Conformers Calculated Total Number	112
Conformers Submitted Total Number	20
Representative Model	19 (closest to the average)

Additional NMR Experimental Information
Details	The sequence-specific assignments were completed using standard double and triple resonance NMR experiments.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	2.1	Bruker
2	data analysis	NMRView	4.1.2	Johnson
3	data analysis	SANE	1.0	Duggan and Legge
4	structure solution	DYANA	1.5	Guentert
5	refinement	Amber	6.0	Case
6	iterative matrix relaxation	SPIRIT	1.0	Zhu