2PHG

Model for VP16 binding to TFIIB

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	15N-HSQCs	0.2 mM VP16ad U-15N, 0-0.2 mM TFIIBc, 50 mM KCl, 50 mM phosphate buffer pH 5.6, 95% H2O, 5% D2O	95% H2O/5% D2O	100 mM	5.6	1 atm	298

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

NMR Refinement
Method	Details	Software
The model was calculated using HADDOCK	The structure represents a docking model. The starting structure for TFIIB was taken from the PDB entry 1TFB.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	Top-ranked ensemble, according to the average interaction energy and buried surface area
Conformers Calculated Total Number	200
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	3.x	Bruker Biospin
2	collection	VNMR	1	Varian Inc.
3	processing	NMRPipe	2.4	Delaglio et al.
4	data analysis	Sparky	3.110	Goddard et al.
5	structure solution	CNS	1.1	Brunger et al.
6	refinement	HADDOCK	1.2	Dominguez et al.