6PV2

Backbone-modified variant of zinc finger 2 from the transcription factor Sp1 DNA binding domain: Orn in the metal-binding turn

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H TOCSY	1.2 mM zinc finger 2 from transcription factor Sp1 DNA-binding domain, Orn turn variant, 10 mM [U-2H] TRIS, 0.05 mM DSS, 1.8 mM zinc chloride	90% H2O/10% D2O	10 mM	6	1 atm	298	Bruker AVANCE 700
2	2D 1H-1H COSY	1.2 mM zinc finger 2 from transcription factor Sp1 DNA-binding domain, Orn turn variant, 10 mM [U-2H] TRIS, 0.05 mM DSS, 1.8 mM zinc chloride	90% H2O/10% D2O	10 mM	6	1 atm	298	Bruker AVANCE 700
3	2D 1H-1H NOESY	1.2 mM zinc finger 2 from transcription factor Sp1 DNA-binding domain, Orn turn variant, 10 mM [U-2H] TRIS, 0.05 mM DSS, 1.8 mM zinc chloride	90% H2O/10% D2O	10 mM	6	1 atm	298	Bruker AVANCE 700

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	700

NMR Refinement
Method	Details	Software
simulated annealing		ARIA

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	TopSpin		Bruker Biospin
2	data analysis	Sparky		Goddard
3	refinement	ARIA		Linge, O'Donoghue and Nilges
4	structure calculation	ARIA		Linge, O'Donoghue and Nilges