UbiquitinUbiquitin-Protein LigasesUbiquitinsUbiquitin ThiolesteraseUbiquitinationUbiquitin-Conjugating EnzymesProteasome Endopeptidase ComplexCullin ProteinsPolyubiquitinLigasesSKP Cullin F-Box Protein LigasesUbiquitin-Protein Ligase ComplexesUbiquitin-Activating EnzymesUbiquitin CEndosomal Sorting Complexes Required for TransportF-Box ProteinsRING Finger DomainsProtein BindingProteolysisProtein Structure, TertiaryAmino Acid SequenceAnaphase-Promoting Complex-CyclosomeMolecular Sequence DataUbiquitinated ProteinsS-Phase Kinase-Associated ProteinsCysteine EndopeptidasesUbiquitin-Specific ProteasesLysineProto-Oncogene Proteins c-cblSaccharomyces cerevisiae ProteinsMultienzyme ComplexesMutationHEK293 CellsCarbon-Nitrogen LyasesCell Cycle Proteinsbeta-Transducin Repeat-Containing ProteinsCarrier ProteinsCell LineSaccharomyces cerevisiaeHeLa CellsProtein Processing, Post-TranslationalProteasome InhibitorsEndopeptidasesAmino Acid MotifsSUMO-1 ProteinLeupeptinsSignal TransductionNuclear ProteinsProtein StabilityModels, MolecularProtein TransportSmall Ubiquitin-Related Modifier ProteinsMultiprotein ComplexesPeptide HydrolasesSubstrate SpecificitySequence Homology, Amino AcidImmunoprecipitationTwo-Hybrid System TechniquesRecombinant Fusion ProteinsProto-Oncogene Proteins c-mdm2DNA-Binding ProteinsThiolester HydrolasesSumoylationProteinsReceptors, 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-RegulationGene Expression RegulationMutant ProteinsMembrane ProteinsCrystallography, X-Ray