1IK0

Solution Structure of Human IL-13


SOLUTION NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
13D_15N-separated_NOESY1mM interleukin-13 U-15N; 40mM phosphate buffer; 2mM NaN3; 40 mM NaCl 90% H2O, 10% D2O; pH 6.090% H2O/10% D2O40 mM sodium phosphate, 2 mM NaN3, 40 mM NaCl6.0ambient298
23D_13C-separated_NOESY1mM interleukin-13 U-15N,U-13C; 40mM phosphate buffer; 2mM NaN3; 40 mM NaCl; 100% D2O; pH 6.0100% D2O40 mM sodium phosphate, 2 mM NaN3, 40 mM NaCl6.0ambient298
3HNCA-J1mM interleukin-13 U-15N,U-13C; 40mM phosphate buffer; 2mM NaN3; 40 mM NaCl 90% H2O, 10% D2O; pH 6.090% H2O/10% D2O40 mM sodium phosphate, 2 mM NaN3, 40 mM NaCl6.0ambient298
4HNHA1mM interleukin-13 U-15N,U-13C; 40mM phosphate buffer; 2mM NaN3; 40 mM NaCl 90% H2O, 10% D2O; pH 6.090% H2O/10% D2O40 mM sodium phosphate, 2 mM NaN3, 40 mM NaCl6.0ambient298
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1BrukerAVANCE600
NMR Refinement
MethodDetailsSoftware
simulated annealingThe structures are based on a total of 2848 restraints, 2248 are NOE-derived distance constraints, 299 dihedral angle restraints,50 distance restraints from hydrogen bonds, 205 Ca/Cb constraints, 96 coupling constant constraints. Additionally, a ramachandran conformational database and radius of gyration target function was used during the refinement.XwinNMR
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 Number100
Conformers Submitted Total Number30
Additional NMR Experimental Information
DetailsThe structure was determined using triple-resonance NMR spectroscopy.
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1collectionXwinNMR2.0Bruker
2processingNMRPipe97.231.15.18Delaglio
3refinementX-PLOR3.84Brunger
4data analysisPIPP4.2.8Garrett