1IB7

SOLUTION STRUCTURE OF F35Y MUTANT OF RAT FERRO CYTOCHROME B5, A CONFORMATION, ENSEMBLE OF 20 STRUCTURES

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2mM F35Y CYTOCHROME B5; 1mM PHOSPHATE BUFFER; PURGED WITH NITROGEN GAS AND REDUCED BY ADDING FEW GRAINS OF SODIUM DITHIONATE AND SEALED USING OXY-ACETYLENE TORCH; 0.05 mM TSP AS INTERNAL REFERENCE	90% H2O/10% D2O	1mM	7.0		313
2	HNHA	2mM F35Y CYTOCHROME B5; 1mM PHOSPHATE BUFFER; PURGED WITH NITROGEN GAS AND REDUCED BY ADDING FEW GRAINS OF SODIUM DITHIONATE AND SEALED USING OXY-ACETYLENE TORCH; 0.05 mM TSP AS INTERNAL REFERENCE	90% H2O/10% D2O	1mM	7.0		313
3	3D_15N-separated_NOESY	2mM F35Y CYTOCHROME B5; 1mM PHOSPHATE BUFFER; PURGED WITH NITROGEN GAS AND REDUCED BY ADDING FEW GRAINS OF SODIUM DITHIONATE AND SEALED USING OXY-ACETYLENE TORCH; 0.05 mM TSP AS INTERNAL REFERENCE	90% H2O/10% D2O	1mM	7.0		313

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	600
2	Bruker	DMX	600
3	Bruker	DMX	600

NMR Refinement
Method	Details	Software
TORSION ANGEL DYNAMICS SIMULATED ANNEALING; RESTRAINED ENERGY	THE STRUCTURE WAS CALCULATED USING 1167 NOE RESTRAINTS AND 69 DIHEDRAL ANGLE RESTRAINTS; RESIDUES 1-3 AND 89-94 WERE NOT INCLUDED IN THE REFINED MODEL BECAUSE OF A LACK OF RESTRAINTS IN THESE PRESUMABLY UNSTRUCTURED REGIONS OF THE PROTEIN.	DYANA

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations, structures with the lowest energy, target function
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (fewest violations,lowest energy)

Additional NMR Experimental Information
Details	THE STRUCTURE WAS DETERMINED USING 2D AND 3D EXPERIMENTS INCLUDING DISTANCE AND ANGULAR RESTRAINTS FROM HNHA

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	DYANA	1.5	GUENTERT, P.
2	data analysis	Felix	97	MSI
3	collection	XwinNMR	2.0	BRUKER

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.