1G1P

NMR Solution Structures of delta-Conotoxin EVIA from Conus ermineus that Selectively Acts on Vertebrate Neuronal Na+ Channels


SOLUTION NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
1NOESY2mM conotoxin EVIA; 90% H2O, 10% D2O90% H2O/10% D2O0.013.0ambient283
2DQF-COSY2mM conotoxin EVIA; 90% H2O, 10% D2O90% H2O/10% D2O0.013.0ambient283
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1BrukerDRX500
NMR Refinement
MethodDetailsSoftware
hybrid distance geometry dynamical simulated annealing with the allhdg force field and simulated annealing with the CHARMM22 force fieldthe structures are based on a total of 256 restraints, 210 are NOE-derived distance constraints, 24 dihedral angle restraints and 22 distance restraints from hydrogen bonds.XwinNMR
NMR Ensemble Information
Conformer Selection Criteriastructures with the least restraint violations,structures with the lowest energy
Conformers Calculated Total Number30
Conformers Submitted Total Number18
Representative Model13 (closest to the average)
Additional NMR Experimental Information
DetailsThis structure was determined using standard 2D homonuclear techniques
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1collectionXwinNMR2.6Bruker
2data analysisGifa4.22Delsuc
3refinementX-PLOR3.851Brunger
4refinementCHARMM22Brooks