ProteolysisProteasome Endopeptidase ComplexPeptide HydrolasesUbiquitinMolecular Sequence DataHydrolysisAmino Acid SequenceEndopeptidasesCysteine EndopeptidasesUbiquitinsUbiquitin-Protein LigasesCalpainUbiquitinationMultienzyme ComplexesBiodegradation, EnvironmentalTrypsinKineticsProtein Processing, Post-TranslationalPeptide FragmentsProtein BindingCell LineProtease InhibitorsElectrophoresis, Polyacrylamide GelMutationCysteine Proteinase InhibitorsProtein Structure, TertiarySerine EndopeptidasesMolecular WeightChymotrypsinSubstrate SpecificityProteinsEndopeptidase ClpCells, CulturedRecombinant ProteinsBinding SitesSKP Cullin F-Box Protein LigasesUbiquitin-Protein Ligase ComplexesF-Box ProteinsLigasesPhosphorylationEndoplasmic Reticulum-Associated DegradationSignal TransductionBase SequenceMembrane ProteinsRNA, MessengerModels, BiologicalProteasome InhibitorsBlotting, WesternEndoplasmic ReticulumEscherichia coliHeLa CellsThermolysinProtein StabilityATP-Dependent ProteasesMetalloendopeptidasesProtein ConformationCathepsinsAnaphase-Promoting Complex-CyclosomeTime FactorsCarrier ProteinsSaccharomyces cerevisiaeCullin ProteinsRecombinant Fusion ProteinsCattleBacterial ProteinsPeptidesProtein TransportSaccharomyces cerevisiae ProteinsCell Cycle ProteinsAmino AcidsAutophagyImmunoblottingEnzyme ActivationUbiquitin-Conjugating EnzymesLeucineChromatography, High Pressure Liquidbeta-Transducin Repeat-Containing ProteinsProtein FoldingSequence Homology, Amino AcidHydrogen-Ion ConcentrationRNA StabilityS-Phase Kinase-Associated ProteinsFibrinolysinMuscle ProteinsCell MembraneTemperatureDNA-Binding ProteinsCell Line, TumorPolyubiquitinNuclear ProteinsEndopeptidase KMass SpectrometryAdenosine TriphosphatasesHEK293 CellsEndocytosisTranscription FactorsMacromolecular SubstancesLiverApoptosisI-kappa B Proteins