1RWD

Backbone NMR Structure of a Mutant P. Furiosus Rubredoxin Using Residual Dipolar Couplings

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	soft HNCA-E.COSY	4.5 mM Rubredoxin U-15N; 50 mM Na Phosphate; 100 mM NaCl; pH 6.3	90% H2O/10% D2O	100 mM NaCl	6.3	ambient	298
2	modified HNCO	4.5 mM Rubredoxin U-15N; 50 mM Na Phosphate; 100 mM NaCl; pH 6.3	90% H2O/10% D2O	100 mM NaCl	6.3	ambient	298
3	phase-modulated HSQC	4.5 mM Rubredoxin U-15N; 50 mM Na Phosphate; 100 mM NaCl; pH 6.3	90% H2O/10% D2O	100 mM NaCl	6.3	ambient	298
4	soft HNCA-E.COSY	2.5 mM Rubredoxin U-15N; 50 mM Na Phosphate ; 50 mM NaCl; pH 6.3; 7% Bicelle (3:1 DMPC:DHPC with 4% CTAB relative to DMPC)	Bicelles in 90% H2O, 10% D2O	50 mM NaCl	6.3	ambient	298
5	modified HNCO	2.5 mM Rubredoxin U-15N; 50 mM Na Phosphate ; 50 mM NaCl; pH 6.3; 7% Bicelle (3:1 DMPC:DHPC with 4% CTAB relative to DMPC)	Bicelles in 90% H2O, 10% D2O	50 mM NaCl	6.3	ambient	298
6	phase-modulated HSQC	2.5 mM Rubredoxin U-15N; 50 mM Na Phosphate ; 50 mM NaCl; pH 6.3; 7% Bicelle (3:1 DMPC:DHPC with 4% CTAB relative to DMPC)	Bicelles in 90% H2O, 10% D2O	50 mM NaCl	6.3	ambient	298
7	soft HNCA-E.COSY	4.5 mM Rubredoxin U-15N; 50 mM Na Phosphate; 100 mM NaCl; pH 6.3; PF1 phage sample	Phage in 90% H2O, 10% D2O	100 mM NaCl	6.3	ambient	298
8	modified HNCO	4.5 mM Rubredoxin U-15N; 50 mM Na Phosphate; 100 mM NaCl; pH 6.3; PF1 phage sample	Phage in 90% H2O, 10% D2O	100 mM NaCl	6.3	ambient	298
9	phase-modulated HSQC	4.5 mM Rubredoxin U-15N; 50 mM Na Phosphate; 100 mM NaCl; pH 6.3; PF1 phage sample	Phage in 90% H2O, 10% D2O	100 mM NaCl	6.3	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	500
2	Varian	INOVA	800

NMR Refinement
Method	Details	Software
RDC directed fragment assembly	RDCs were used in the initial assembly of 6 fragments. RDCs from two media were used to set relative orientation of fragments. Translational relationships of fragments were dictated by sequence connectivities. The assembled structure was minimized using a molecular force field and RDC error function. All sidechain atoms beyond CB are missing.	REDcRAFT

NMR Ensemble Information
Conformer Selection Criteria
Conformers Calculated Total Number
Conformers Submitted Total Number	1
Representative Model	1 (fewest violations)

Additional NMR Experimental Information
Details	Structure was determined using residual dipolar couplings from backbone atom pairs; modeled as an Ala-Gly polypeptide

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	REDcRAFT	1.0	Valafar, H. & Prestegard, J.H.
2	refinement	XPLOR-NIH	2.9.1	Schwieters, C.D., Kuszewski, J.J., Tjandra, N. & Clore, G.M.
3	data analysis	REDCAT	1.0	Valafar, H. & Prestegard, J.H.

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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.