Proteasome Endopeptidase ComplexUbiquitinProteasome InhibitorsCysteine EndopeptidasesUbiquitinsMultienzyme ComplexesUbiquitin-Protein LigasesUbiquitinationLeupeptinsUbiquitin ThiolesterasePeptide HydrolasesPolyubiquitinCysteine Proteinase InhibitorsUbiquitin-Conjugating EnzymesBoronic AcidsPyrazinesProteolysisCullin ProteinsProtease InhibitorsSKP Cullin F-Box Protein LigasesLigasesAmino Acid SequenceMolecular Sequence DataProtein BindingUbiquitin-Protein Ligase ComplexesUbiquitinated ProteinsProtein SubunitsSaccharomyces cerevisiae ProteinsF-Box ProteinsUbiquitin-Activating EnzymesEndopeptidasesSaccharomyces cerevisiaeProtein Processing, Post-TranslationalAdenosine TriphosphatasesAcetylcysteineProtein Structure, TertiaryCarbon-Nitrogen LyasesCell LineThermoplasmaMutationEndosomal Sorting Complexes Required for TransportUbiquitin CProteinsSubstrate SpecificityHeLa CellsAnaphase-Promoting Complex-CyclosomeCarrier ProteinsChymotrypsinSequence Homology, Amino AcidCell Cycle ProteinsLysineHydrolysisCell Line, TumorRING Finger DomainsBlotting, WesternSignal TransductionHEK293 CellsMultiprotein ComplexesAmino Acid MotifsOligopeptidesModels, MolecularNuclear ProteinsS-Phase Kinase-Associated ProteinsTwo-Hybrid System TechniquesProtein TransportMolecular ChaperonesFungal ProteinsApoptosisProtein StabilityDNA-Binding ProteinsImmunoblottingModels, BiologicalImmunoprecipitationRecombinant Fusion ProteinsProtein FoldingArabidopsis ProteinsBinding SitesAdenosine TriphosphateTranscription FactorsEndoplasmic ReticulumArabidopsisRecombinant ProteinsTransfectionPhosphorylationLactonesDown-RegulationEnzyme ActivationSequence AlignmentRNA InterferenceRNA, Small InterferingUbiquitin-Specific ProteasesCell NucleusPhysiological ProcessesProto-Oncogene Proteins c-cblCells, CulturedYeastsMuscle ProteinsProtein ConformationMass SpectrometryBase Sequence