1YJI

RDC-refined Solution NMR structure of reduced putidaredoxin

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	15N-coupled 2D 15N-1H HSQC; 7.5% bicelle (DMPC:DHPC-2.9:1)	1 mM reduced putidaredoxin 15N; 50 mM Tris-Cl buffer, 50 mM KCl, pH 7.4	90% H2O/10% D2O	50 mM KCl	7.4	ambient	298
2	15N-coupled 2D 15N-1H HSQC; 10 mg/mL Phage	1 mM reduced putidaredoxin 15N; 50 mM Tris-Cl buffer, 50 mM KCl, pH 7.4	90% H2O/10% D2O	50 mM KCl	7.4	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600

NMR Refinement
Method	Details	Software
simulated annealing	The structures are based on 1241 NOE restriants, 160 dihedral angle restraints and 150 RDC restraints, 28 paramagnetic distance restraints from relaxation measurements and 18 distance restraints from hydrogen bonds	Xplor-NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	11
Representative Model	9 (lowest energy)

Additional NMR Experimental Information
Details	The structures were refined against 15N-1H RDC restraints using previously published NOE and dihedral angle restraints for Pdx. The restraints for the metal binding loop (residues 36-48,85-86) were modeled from bovine adrenodoxin crystal structure.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	Xplor-NIH	2.9.6	Schwieters, Kuszewski, Tjandra, Clore