Experiment: 1Z1D

Structural Model for the interaction between RPA32 C-terminal domain and SV40 T antigen origin binding domain.

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 15N-1H HSQC	0.2mM RPA32C U-15N, 0.6mM Tag-OBD, 20mM Tris buffer pH 7.0, 2 mM DTT, 5mM MgCl2, 90% H2O, 10% D2O	90% H2O/10% D2O	0.03 M	7.0	ambient	298
2	2D 15N-1H HSQC	0.2mM Tag-OBD U-15N, 0.6mM RPA32C, 20mM Tris buffer pH 7.0, 2mM DTT, 5mM MgCl2, 90% H2O, 10% D2O	90% H2O/10% D2O	0.03 M	7.0	ambient	298

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

NMR Refinement
Method	Details	Software
Rigid body docking, Semi-flexible simulated annealing, Refinement using explicit water	1500 conformers were obtained in the rigid body docking and 200 best conformers were selected for semi-flexible simulated annealing followed by refinement.	UXNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with acceptable covalent geometry,structures with favorable non-bond energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	This model structure was obtained using ambigous chemical shift pertubation constraints and validated using residual dipolar couplings and point mutations on the interface

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	UXNMR	2.3	Bruker software
2	data analysis	Felix	2000	Accelrys, Inc
3	structure solution	HADDOCK	1.3	Bonvin, A.M.
4	refinement	HADDOCK	1.3	Bonvin, A.M.