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THE THREE-DIMENSIONAL SOLUTION STRUCTURE OF THE RABBIT KIDNEY DEFENSIN, RK-1
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
DQF-COSY
1.5 mM RK1
90% H2O/10% D2O
3.5
ambient
308
2
2D NOESY
1.5 mM RK1
90% H2O/10% D2O
3.5
ambient
308
3
E-COSY
1.5 mM RK1
100% D2O
3.5
ambient
308
4
2D NOESY
1.5 mM RK1
100% D2O
3.5
ambient
308
5
2D NOESY
1.5 mM RK1
30% CD3CN: 70% H2O
3.5
ambient
308
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
ARX
500
2
Bruker
DMX
750
NMR Refinement
Method
Details
Software
simulated annealing
The structures are based on a total of 509 distance restraints consisting of
498 NOE-derived distance restraints, 11 restraints from hydrogen bonds and
31 dihedral angle restraints
XwinNMR
NMR Ensemble Information
Conformer Selection Criteria
structures with acceptable covalent geometry
Conformers Calculated Total Number
50
Conformers Submitted Total Number
20
Representative Model
9 (lowest energy)
Additional NMR Experimental Information
Details
This structure was determined using standard 2D homonuclear techniques