Find PDB structures and Computed Structure Models (CSM) by combining queries from tools in this suite: Attribute Search, Sequence Similarity, Sequence Motif, 3D Similarity, and 3D Motif with 'AND' logic.
REFINED SOLUTION STRUCTURE OF THE (13C,15N-LABELED) B12-BINDING SUBUNIT OF GLUTAMATE MUTASE FROM CLOSTRIDIUM TETANOMORPHUM
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
2D NOESY
1.5mM MutS U-98% 15N,13C;
11mM phosphate buffer;
90% H2O/10% D2O
11mM KXH3-XPO4
6.0
1 atm
299
2
3D_13C-separated_NOESY
1.5mM MutS U-98% 15N,13C;
11mM phosphate buffer;
90% H2O/10% D2O
11mM KXH3-XPO4
6.0
1 atm
299
3
3D_15N-separated_NOESY
1.5mM MutS U-98% 15N,13C;
11mM phosphate buffer;
90% H2O/10% D2O
11mM KXH3-XPO4
6.0
1 atm
299
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Varian
UNITYPLUS
500
NMR Refinement
Method
Details
Software
distance geometry,
simulated annealing,
simulated annealing refinement,
energy minimization
The MutS structure models 1-15 are based on a total of 1792 restraints, 1553 are NOE-derived
distance constraints, 184 dihedral angle restraints, 55 distance restraints
from hydrogen bonds. Backbone dihedral angles Phi and Psi were obtained by
employing TALOS software [G. Cornilescu et al., J. Biomol. NMR 1999, 13, 289-302].
Phi and Psi torsion angle restraints for the MutS residues 23-30,
which form a "nascent" helix [M. Tollinger et al., Structure 1998, 6, 1021-1033],
were not used in structure
calculations for MutS models 16-30.
NMRPipe
NMR Ensemble Information
Conformer Selection Criteria
structures with acceptable covalent geometry,structures with favorable non-bond energy,structures with the least restraint violations,structures with the lowest energy
Conformers Calculated Total Number
200
Conformers Submitted Total Number
30
Representative Model
16 (fewest violations)
Additional NMR Experimental Information
Details
The structure was determined using triple-resonance NMR spectroscopy.