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Non-cognate protein-protein interactions: the NMR structure of the colicin E8 inhibitor protein Im8 and its interaction with the DNase domain of colicin E9
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
3D 15N-EDITED TOCSY-HSQC
0.01M DTT
0.05 M
6.2
1 atm
298
2
3D 15N-EDITED NOESY-HSQC
0.01M DTT
0.05 M
6.2
1 atm
298
3
2D 1H-1H TOCSY (80MS)
0.01M DTT
0.05 M
6.2
1 atm
298
4
2D 1H-1H NOESY(100MS)
0.01M DTT
0.05 M
6.2
1 atm
298
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Varian
UNITYPLUS
750
NMR Refinement
Method
Details
Software
torsion angle dynamics
REFINEMENT USING A RESTRAINT MOLECULAR DYNAMICS RUN IN VACUO
OPAL
NMR Ensemble Information
Conformer Selection Criteria
THE 30 LOWEST TARGET FUNCTION STRUCTURES FROM DYANA WERE ENERGY MINIMISED IN OPAL; THE 20 LOWEST ENERGY STRUCTURES WERE CHOSEN AS THE FINAL ENSEMBLE
Conformers Calculated Total Number
300
Conformers Submitted Total Number
1
Additional NMR Experimental Information
Details
NMR STRUCTURE DETERMINED USING 15-LABELLED IM8 PROTEIN. THIS ENTRY REPRESENTS THE LOWEST ENERGY STRUCTURE FROM AN ENSEMBLE OF 20 STRUCTURES (THE ENSEMBLE HAS BEEN DEPOSITED AS ENTRY 1GXH).