1IBX

NMR STRUCTURE OF DFF40 AND DFF45 N-TERMINAL DOMAIN COMPLEX

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	0.6 mM DFF40/DFF45 NTD complex 90% deuterated, U-15N/13C labeled DFF40 non-labeled DFF45	20 mM Phosphate buffer 5 mM DTT, 50 mM NaCl 10%D2O/90%H2O
2	3D_13C-separated_NOESY	0.6 mM DFF40/DFF45 NTD complex 90% deuterated, U-15N/13C labeled DFF40 non-labeled DFF45	20 mM Phosphate buffer 5 mM DTT, 50 mM NaCl 10%D2O/90%H2O
3	3D_15N-separated_NOESY	0.6 mM DFF40/DFF45 NTD complex 90% deuterated, U-15N/13C labeled DFF40 non-labeled DFF45	20 mM Phosphate buffer 5 mM DTT, 50 mM NaCl 10%D2O/90%H2O
4	3D_15N-separated_NOESY	0.6 mM DFF40/DFF45 NTD complex 90% deuterated, U-15N/13C labeled DFF40 non-labeled DFF45	20 mM Phosphate buffer 5 mM DTT, 50 mM NaCl 10%D2O/90%H2O
5	2D NOESY	0.6 mM DFF40/DFF45 NTD complex 90% deuterated, U-15N/13C labeled DFF40 non-labeled DFF45	20 mM Phosphate buffer 5 mM DTT, 50 mM NaCl 10%D2O/90%H2O
6	2D NOESY	0.6 mM DFF40/DFF45 NTD complex 90% deuterated, U-15N/13C labeled DFF40 non-labeled DFF45	20 mM Phosphate buffer 5 mM DTT, 50 mM NaCl 10%D2O/90%H2O

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Bruker	AVANCE	500
3	Varian	INOVA	750

NMR Refinement
Method	Details	Software
torsion angle dynamics/simulated annealing		Felix

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	30
Conformers Submitted Total Number	10
Representative Model	10 (closest to the average)

Additional NMR Experimental Information

Details

The structure was determined using triple-resonance NMR spectroscopy. Chain B, is produced as a chimeric protein containing protein G B1 domain (-44 to 11) and DFF45 (12 to 100). The residues of the Protein G B1 domain are used as a solubility enhancement tag to improve solubility and stability of target protein. These residues are not included in the structural calculation, thus the coordinates are not deposited.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	Felix	97	Molecular Simulation, Inc.
2	data analysis	XEASY	v1.3	Ch. Bartels et. al.
3	structure solution	DYANA	v1.5	Guntert et al.
4	structure solution	X-PLOR	v3.8	Brunger
5	refinement	X-PLOR	3.851	Brunger