Skip to main content

 1PX9 | pdb_00001px9

Solution structure of the native CnErg1 Ergtoxin, a highly specific inhibitor of HERG channel


SOLUTION NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
12D NOESY0.55 mg of lyophilized natural ErgTx0.160 mL, H2O/D2O 9:1, pH 33ambient303
22D TOCSY0.55 mg of lyophilized natural ErgTx0.160 mL, H2O/D2O 9:1, pH 33ambient303
3DQF-COSY0.55 mg of lyophilized natural ErgTx0.160 mL, H2O/D2O 9:1, pH 33ambient303
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1VarianINOVA500
2VarianINOVA600
NMR Refinement
MethodDetailsSoftware
simulated annealingThe structures are based on a total of 452 distance constraints (252 are intraresidual NOE-derivated distance constraints, 200 are interresidual NOE-derivated distance constraints including 49 long range), 13 3J and 10 hbondsDiscover
NMR Ensemble Information
Conformer Selection Criteriastructures with acceptable covalent geometry, structures with favorable non-bond energy, structures with the least restraint violations, structures with the lowest energy
Conformers Calculated Total Number10
Conformers Submitted Total Number1
Representative Model1 (fewest violations, lowest energy)
Additional NMR Experimental Information
Detailsshigemi tube and nano-probe
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1processingDiscoverinsightII 2000Accelrys technologies
2data analysisDiscoverinsightII 2000Accelrys technologies
3refinementDiscoverinsightII 2000Accelrys technologies