Ubiquitinalpha-FetoproteinsFetusFetal ProteinsUbiquitin-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 ProteinsAmino Acid SequenceMolecular Sequence DataProtein BindingRING Finger DomainsProteolysisProtein Structure, TertiaryCell LineGene Expression RegulationAnaphase-Promoting Complex-CyclosomeMutationUbiquitinated ProteinsSaccharomyces cerevisiae ProteinsCysteine EndopeptidasesCarrier ProteinsTranscription, GeneticS-Phase Kinase-Associated ProteinsHeLa CellsReverse Transcriptase Polymerase Chain ReactionMultienzyme ComplexesLysineSaccharomyces cerevisiaeUbiquitin-Specific ProteasesSignal TransductionProto-Oncogene Proteins c-cblBase SequenceHEK293 CellsCells, CulturedProtein BiosynthesisNuclear ProteinsCell Cycle ProteinsProtein Processing, Post-TranslationalBlotting, NorthernSequence Homology, Amino Acidbeta-Transducin Repeat-Containing ProteinsDNA-Binding ProteinsCarbon-Nitrogen LyasesCloning, MolecularEndopeptidasesAmino Acid MotifsProteasome InhibitorsTranscription FactorsBlotting, WesternRNA StabilityTransfectionLeupeptinsRNA, MessengerProteinsRecombinant Fusion ProteinsSUMO-1 ProteinProtein TransportDown-RegulationModels, MolecularBinding SitesProtein StabilityImmunoprecipitationSubstrate SpecificityDNA, ComplementaryCell Line, TumorTwo-Hybrid System TechniquesRNA, Small InterferingMultiprotein ComplexesModels, BiologicalIn Situ HybridizationRNA InterferenceDNA PrimersPeptide HydrolasesRNA-Binding ProteinsSmall Ubiquitin-Related Modifier ProteinsGene Expression Regulation, EnzymologicRecombinant ProteinsSequence AlignmentCell NucleusAdaptor Proteins, Signal TransducingRepressor ProteinsMembrane ProteinsProto-Oncogene Proteins c-mdm2PhosphorylationUp-RegulationImmunoblottingThiolester HydrolasesSumoylation