UbiquitinUbiquitinsUbiquitin-Activating EnzymesUbiquitin-Conjugating EnzymesUbiquitin-Protein LigasesProteasome Endopeptidase ComplexLigasesUbiquitinationUbiquitin ThiolesteraseCysteine EndopeptidasesUbiquitin-Protein Ligase ComplexesMultienzyme ComplexesPeptide HydrolasesEndopeptidasesMolecular Sequence DataAmino Acid SequenceSaccharomyces cerevisiae ProteinsProtein BindingCullin ProteinsPolyubiquitinMutationProteinsSKP Cullin F-Box Protein LigasesUbiquitin CEndosomal Sorting Complexes Required for TransportF-Box ProteinsRING Finger DomainsProteolysisProtein Structure, TertiaryAnaphase-Promoting Complex-CyclosomeUbiquitinated ProteinsS-Phase Kinase-Associated ProteinsUbiquitin-Specific ProteasesLysineProto-Oncogene Proteins c-cblHEK293 CellsCarbon-Nitrogen LyasesCell Cycle Proteinsbeta-Transducin Repeat-Containing ProteinsCarrier ProteinsCell LineSaccharomyces cerevisiaeHeLa CellsProtein Processing, Post-TranslationalProteasome InhibitorsAmino Acid MotifsSUMO-1 ProteinLeupeptinsSignal TransductionNuclear ProteinsProtein StabilityModels, MolecularProtein TransportSmall Ubiquitin-Related Modifier ProteinsMultiprotein ComplexesSubstrate SpecificitySequence Homology, Amino AcidImmunoprecipitationTwo-Hybrid System TechniquesRecombinant Fusion ProteinsProto-Oncogene Proteins c-mdm2DNA-Binding ProteinsThiolester HydrolasesSumoylationReceptors, Autocrine Motility FactorModels, BiologicalAdaptor Proteins, Signal TransducingPeptide SynthasesProtein Interaction Domains and MotifsBinding SitesRNA InterferenceTranscription FactorsRNA, Small InterferingTransfectionRepressor ProteinsProtein FoldingCell Line, TumorPhosphorylationBlotting, WesternImmunoblottingEndocytosisSequence AlignmentNuclear Magnetic Resonance, BiomolecularProtein ConformationRecombinant ProteinsBase SequenceTumor Suppressor Protein p53COS CellsInclusion BodiesCell CycleIntracellular Signaling Peptides and ProteinsCysteine Proteinase InhibitorsTumor Suppressor ProteinsVon Hippel-Lindau Tumor Suppressor ProteinDNA DamageDown-Regulation