Proteasome InhibitorsProteasome Endopeptidase ComplexLeupeptinsBoronic AcidsPyrazinesCysteine Proteinase InhibitorsCysteine EndopeptidasesMultienzyme ComplexesProtease InhibitorsAcetylcysteineDrug ResistanceDrug Resistance, NeoplasmDrug Resistance, MicrobialUbiquitinsDrug Resistance, BacterialUbiquitinApoptosisCell Line, TumorAntineoplastic AgentsOligopeptidesUbiquitinationLactonesDrug Resistance, MultipleMultiple MyelomaDisease ResistanceCell LineProteolysisVascular ResistanceMutationDrug Resistance, ViralNF-kappa BDrug Resistance, Multiple, BacterialMolecular Sequence DataUbiquitinated ProteinsDrug SynergismBlotting, WesternAnti-Bacterial AgentsPeptide HydrolasesEnzyme InhibitorsTumor Cells, CulturedPolyubiquitinDown-RegulationSignal TransductionMicrobial Sensitivity TestsUbiquitin-Protein LigasesAmino Acid SequenceCell SurvivalDose-Response Relationship, DrugChymotrypsinCells, CulturedThiostreptonCaspasesTransfectionTime FactorsProtein Processing, Post-TranslationalRNA, MessengerEndoplasmic ReticulumHeLa CellsI-kappa B ProteinsProto-Oncogene Proteins c-bcl-2Protein SubunitsPhosphorylationRNA, Small InterferingTetracycline ResistanceProtein BindingImmunoblottingEnzyme ActivationPlant DiseasesReverse Transcriptase Polymerase Chain ReactionPenicillin ResistanceModels, BiologicalCell DeathCell ProliferationBase SequenceDNA-Binding ProteinsXenograft Model Antitumor AssaysDrug Resistance, FungalCarrier ProteinsAirway ResistanceMyeloid Cell Leukemia Sequence 1 ProteinCell CycleDrug Screening Assays, AntitumorProteinsNeoplasm ProteinsCaspase 3Protein TransportPlasmidsUp-RegulationGene Expression RegulationApoptosis Regulatory ProteinsMembrane ProteinsProtein Synthesis InhibitorsTumor Suppressor Protein p53PyrrolesTranscription FactorsClioquinolUbiquitin-Conjugating EnzymesPhenotypeBacterial ProteinsInhibitory Concentration 50