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Solution structure of the proteasome ubiquitin receptor Rpn13
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
2D 1H-15N HSQC
0.1 mM [U-15N] protein, 0.1 mM [U-15N; U-50% 2H] protein
90% H2O/10% D2O
20 mM phosphate, 50 mM NaCl
6.5
298
2
3D 1H-15N NOESY
0.1 mM [U-15N] protein, 0.1 mM [U-15N; U-50% 2H] protein
90% H2O/10% D2O
20 mM phosphate, 50 mM NaCl
6.5
298
3
2D 1H-15N HSQC
0.1 mM [U-15N] protein, 0.1 mM [U-15N; U-50% 2H] protein
90% H2O/10% D2O
20 mM phosphate, 50 mM NaCl
6.5
298
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Varian
INOVA
800
2
Varian
INOVA
900
3
Bruker
AVANCE
700
NMR Refinement
Method
Details
Software
simulated annealing
The structure of two functional domain of the protein is calculated based on their NOE-derived distance constraints, hydrogen bonds and dihedral angle restraints. The paramagnetic relaxation enhancement from spin-labeling experiments and inter-domain NOE help define the structure of full protein.
VnmrJ
NMR Ensemble Information
Conformer Selection Criteria
structures with the lowest energy
Conformers Calculated Total Number
50
Conformers Submitted Total Number
31
Representative Model
1 (lowest energy)
Additional NMR Experimental Information
Details
The Spectra took in Bruker Advance 700 MHz are a set of spin-labeling experiments to achieve PRE data.