SumoylationSmall Ubiquitin-Related Modifier ProteinsSUMO-1 ProteinProtein Inhibitors of Activated STATUbiquitin-Conjugating EnzymesLysineProtein Processing, Post-TranslationalUbiquitin-Protein LigasesHEK293 CellsUbiquitinsProtein BindingIntranuclear Inclusion BodiesUbiquitinationUbiquitinCOS CellsTranscription, GeneticTwo-Hybrid System TechniquesCell LineHeLa CellsAmino Acid MotifsUbiquitin-Activating EnzymesRepressor ProteinsCell NucleusNuclear ProteinsMutationAmino Acid SequenceCercopithecus aethiopsTranscription FactorsRING Finger DomainsEndopeptidasesLigasesProtein Structure, TertiaryImmunoprecipitationMolecular Sequence DataTranscriptional ActivationIntranuclear SpaceHistone DeacetylasesDNA-Binding ProteinsProtein TransportActive Transport, Cell Nucleus