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Solution structure of the antimicrobial 18-residue gomesin
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
DQF-COSY
3.3mM Gomesin
90% H2O/10% D2O
3.5
ambient
278
2
2D NOESY
3.3mM Gomesin
90% H2O/10% D2O
3.5
ambient
278
3
clean-TOCSY
3.3mM Gomesin
90% H2O/10% D2O
3.5
ambient
278
4
2D NOESY
3.3mM Gomesin
100% D2O
3.5
ambient
278
5
Clean-TOCSY
3.3mM Gomesin
100% D2O
3.5
ambient
278
6
2D NOESY
3.3mM Gomesin
90% H2O/10% D2O
3.5
ambient
285
7
Clean-TOCSY
3.3mM Gomesin
90% H2O/10% D2O
3.5
ambient
285
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Varian
INOVA
600
NMR Refinement
Method
Details
Software
distance geometry
simulated annealing
energy minimization
The 20 structures are based on a total of 289 restraints, 279 are NOE-derived distance constraints, 4 are used for hydrogen bonds modelling and 6 (i.e. 2x3) are used for disulfide bridge modelling.
No dihedral angle restraints used.
DYANA
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
20
Additional NMR Experimental Information
Details
This solution structure was determined using standard 2D homonuclear techniques.