1RW2

Three-dimensional structure of Ku80 CTD

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	Approximately 1 mM N-15/C-13 labeled protein in 100 mM phosphate buffer, pH 6.0, and 5 mM DTT	100% D2O	100 mM phosphate buffer	6.0	1 atmosphere	298
2	HCCH-TOCSY	Approximately 1 mM N-15/C-13 labeled protein in 100 mM phosphate buffer, pH 6.0, and 5 mM DTT	100% D2O	100 mM phosphate buffer	6.0	1 atmosphere	298
3	HNCACB, C(CO)NH, HNCO, HN(CA)CO, H(CCO)NH, HBHA(CO)NH	Approximately 1 mM N-15/C-13 labeled protein in 100 mM phosphate buffer, pH 6.0, and 5 mM DTT	90% H2O/10% D2O	100 mM phosphate buffer	6.0	1 atmosphere	298
4	3D_15N-separated_NOESY	Approximately 1 mM N-15 labeled protein in 100 mM phosphate buffer, pH 6.0, an	90% H2O/10% D2O	100 mM phosphate buffer	6.0	1 atmosphere	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	UNITYPLUS	500

NMR Refinement
Method	Details	Software
simulated annealing	The structures are based on a total of 2449 restraints, 2180 are NOE-derived distance constraints, 201 dihedral angle restraints,68 residue dipolar coupling	VNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations,target function
Conformers Calculated Total Number	40
Conformers Submitted Total Number	10

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	VNMR	6.1	Varian
2	processing	Felix	98, 2000	Accelrys
3	data analysis	Felix	98, 2000	Accelrys
4	structure solution	DIANA	1.5	Peter Guntert, Christian Mumenthaler and Torsten Herrmann
5	refinement	ARIA	1.2	Jens Linge, Michael Nilges