Ubiquitin-Protein LigasesLigasesUbiquitinUbiquitinsAngelman SyndromeUbiquitin-Conjugating EnzymesMass SpectrometryUbiquitin-Protein Ligase ComplexesUbiquitinationEndosomal Sorting Complexes Required for TransportProteasome Endopeptidase ComplexCullin ProteinsAnaphase-Promoting Complex-CyclosomeMolecular Sequence DataSKP Cullin F-Box Protein LigasesAmino Acid SequenceTandem Mass SpectrometryCarbon-Nitrogen LigasesProtein BindingSpectrometry, Mass, Electrospray IonizationF-Box ProteinsPolyubiquitinMutationSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationUbiquitin-Activating EnzymesFatty Acid Synthase, Type IIBiotinylationSubstrate SpecificityGas Chromatography-Mass SpectrometryS-Phase Kinase-Associated ProteinsRNA Ligase (ATP)Chromatography, LiquidUbiquitin ThiolesteraseProtein Structure, TertiarySequence Homology, Amino AcidBiotinCell LineSaccharomyces cerevisiae ProteinsCell Cycle Proteinsbeta-Transducin Repeat-Containing ProteinsProteolysisSaccharomyces cerevisiaeProtein Processing, Post-TranslationalPeptide SynthasesF-Box MotifsProteomicsChromatography, High Pressure LiquidCarrier ProteinsProteinsThioctic AcidCysteine EndopeptidasesMultienzyme ComplexesBase SequenceHeLa CellsMultiprotein ComplexesAcetyl-CoA CarboxylaseRecombinant Fusion ProteinsRepressor ProteinsDNA LigasesSpectrometry, Mass, Secondary IonHydroxyapatitesProteomeModels, MolecularVon Hippel-Lindau Tumor Suppressor ProteinHEK293 CellsInhibitor of Apoptosis ProteinsTranscription FactorsRecombinant ProteinsAdenovirus E4 ProteinsSpectrometry, Mass, Fast Atom BombardmentTwo-Hybrid System TechniquesProtein StabilityImmunoprecipitationAmino Acid MotifsBacterial ProteinsEscherichia coliElectrophoresis, Gel, Two-DimensionalRING Finger DomainsDNA-Binding ProteinsElectrophoresis, Polyacrylamide GelPolynucleotide LigasesPeptidesNuclear ProteinsSignal TransductionPhosphorylationModels, BiologicalDeuterium Exchange MeasurementBinding SitesLysineUbiquitin CCell Line, TumorIsotope LabelingPeptide MappingEscherichia coli ProteinsCloning, MolecularMolecular StructureMagnetic Resonance SpectroscopyRNA InterferenceReproducibility of ResultsProtein Transport