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SOLUTION STRUCTURE OF CONOTOXIN TVIIA FROM CONUS TULIPA
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
2D NOESY
2mM conotoxin TVIIA
90% H2O/10% D2O or 99.99% D2O
0
3.0
ambient
283
2
DQF-COSY
2mM conotoxin TVIIA
90% H2O/10% D2O or 99.99% D2O
0
3.0
ambient
283
3
E-COSY
2mM conotoxin TVIIA
90% H2O/10% D2O or 99.99% D2O
0
3.0
ambient
283
4
TOCSY
2mM conotoxin TVIIA
90% H2O/10% D2O or 99.99% D2O
0
3.0
ambient
283
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 562 interproton distance restraints, and 18 backbone and 9 side chain dihedral angle restraints derived from spin-spin coupling constants.
X-PLOR
NMR Ensemble Information
Conformer Selection Criteria
structures with the least restraint violations,structures with the lowest energy
Conformers Calculated Total Number
50
Conformers Submitted Total Number
20
Representative Model
1 (fewest violations,lowest energy)
Additional NMR Experimental Information
Details
This structure was determined using standard 2D homonuclear techniques.