1LM2

NMR structural characterization of the reduction of chromium(VI) to chromium(III) by cytochrome c7

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2 mM cytochrome c7-chromium(III)	90% H2O, 10% D2O; 100 mM phosphate buffer	100 mM phosphate buffer	6.5	1 atm	298

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

NMR Refinement
Method	Details	Software
simulated annealing in torsion angle space		DYANA

NMR Ensemble Information
Conformer Selection Criteria	structures with best target function
Conformers Calculated Total Number	500
Conformers Submitted Total Number	35
Representative Model	1 (fewest violations)

Additional NMR Experimental Information
Details	The protein solution was titrated by addition of increasing amounts of the (CrO4)2- solution directly in the NMR tube. The (CrO4)2- solution was kept under argon atmosphere to avoid the presence of oxygen in the NMR tube.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	DYANA	1.5	Guentert
2	refinement	DYANA	1.5	Guentert