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Solution Structure of a Ubiquitin-Like Domain from Tubulin-binding Cofactor B
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
3D_13C-separated_NOESY
1 mM cofactor B ubiquitin-like domain U-15N, 13C; 20 mM sodium phosphate buffer; 50 mM NaCl
90% H2O/10% D2O
50 mM NaCl + 20 mM NaPO4
6.5
AMBIENT
298
2
3D_15N-separated_NOESY
1 mM cofactor B ubiquitin-like domain U-15N, 13C; 20 mM sodium phosphate buffer; 50 mM NaCl
90% H2O/10% D2O
50 mM NaCl + 20 mM NaPO4
6.5
AMBIENT
298
3
3D_13C-separated_NOESY aromatic
1 mM cofactor B ubiquitin-like domain U-15N, 13C; 20 mM sodium phosphate buffer; 50 mM NaCl
90% H2O/10% D2O
50 mM NaCl + 20 mM NaPO4
6.5
AMBIENT
298
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
DRX
600
NMR Refinement
Method
Details
Software
TORSION ANGLE DYNAMICS FOLLOWED BY CARTESIAN MOLECULAR DYNAMICS IN EXPLICIT SOLVENT
The C-terminal residues 91-120 were disordered (as evidenced by 15N relaxation data) and were excluded from the model. INITIAL STRUCTURES WERE GENERATED USING THE CANDID MODULE OF CYANA. ADDITIONAL NOE ASSIGNMENTS WERE DETERMINED MANUALLY. PHI AND PSI TORSION ANGLE CONSTRAINTS WERE GENERATED FROM CHEMICAL SHIFT DATABASE SEARCHING USING THE PROGRAM TALOS (G. CORNILESCU).
XwinNMR
NMR Ensemble Information
Conformer Selection Criteria
target function
Conformers Calculated Total Number
100
Conformers Submitted Total Number
20
Representative Model
4 (closest to the average)
Additional NMR Experimental Information
Details
CHEMICAL SHIFT ASSIGNMENTS WERE OBTAINED FROM STANDARD 3D TRIPLE-RESONANCE EXPERIMENTS, USING THE AUTOMATED METHOD OF GARANT (C. BARTELS)