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 1JRJ | pdb_00001jrj

Solution structure of exendin-4 in 30-vol% trifluoroethanol


SOLUTION NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
12D NOESYNatural abundance2mg/ml in pH 5.9 15mM phosphate buffer with 30 vol-% trifluoroethanol added15mM potassium phosphate5.9ambient280
22D TOCSYNatural abundance2mg/ml in pH 5.9 15mM phosphate buffer with 30 vol-% trifluoroethanol added15mM potassium phosphate5.9ambient280
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1BrukerDMX750
NMR Refinement
MethodDetailsSoftware
simulated annealingThe structures were calculated using CNS 0.9 with 294 NOE distance constraints, 20 distance constraints from defined torsion angles, and 116 anti-distance constraints. No hydrogen bond constraints were employed.XwinNMR
NMR Ensemble Information
Conformer Selection Criteriastructures with acceptable covalent geometry, structures with favorable non-bond energy, structures with the least restraint violations
Conformers Calculated Total Number50
Conformers Submitted Total Number36
Additional NMR Experimental Information
Details2D NOESYs performed with mixing times of 60, 150 (deuterated medium), 160ms.
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1collectionXwinNMRBruker
2processingFelix95MSI
3structure solutionCNS0.9Brunger
4refinementCNS0.9Brunger