1DP3

SOLUTION STRUCTURE OF THE DNA BINDING DOMAIN OF THE TRAM PROTEIN

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	unlabeled TraMM26, uniform labeled TraMM26 with 15N; 50mM phosphate buffer NA; 95% H2O 5% D2O	95% H2O/5% D2O	50 mM posphate buffer	4.0	ambient	300
2	3D-15N-NOESY-HSQC	uniform labeled TraMM26 with 15N; 50mM phosphate buffer NA; 95% H2O 5% D2O	95% H2O/5% D2O	50 mM phospate buffer	4.0	ambient	300
3	HNHA	uniform labeled TraMM26 with 15N; 50mM phosphate buffer NA; 95% H2O 5% D2O	95% H2O/5% D2O	50 mM phospate buffer	4.0	ambient	300

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	600
2	Bruker	DMX	800
3	Varian	UNITY INOVA	600

NMR Refinement
Method	Details	Software
distance geometry; simulated annealing	This structures are based on 438 NOE restraints derived from 15N labeled NOE-derived distance restraints, 115 distance restraints from 2D homonuclear NOESY experiments and 40 dihedral angle restraints. The dihedral restraints with random coil values for the flexible terminal part extracted from the HNHA spectra were not used in the structure calculations.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with acceptable covalent geometry
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	13 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	2.5	Bruker Analytical GmbH
2	processing	NMRPipe		Delaglio, F., Grzesiek, S., Vuister, G.W., Zhu, G., Pfeifer, J. Bax, A.
3	data analysis	ANSIG	3.3	Kraulis, F.J.
4	refinement	X-PLOR	3.851	Brunger, A.T.
5	data analysis	MOLMOL	2.6	Koradi, R., Billeter, M., Wuthrich, K.
6	collection	VNMR	5.2	Varian Inc.