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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.