Pepsin AProtease InhibitorsHIV ProteasePepsinogensPeptide HydrolasesPepstatinsSerine EndopeptidasesEndopeptidasesGastric JuiceCysteine ProteasesProtease LaAmino Acid SequenceATP-Dependent ProteasesMolecular Sequence DataCysteine EndopeptidasesProtease NexinsSerine Proteinase InhibitorsAspartic Acid EndopeptidasesRespiratory AspirationHydrogen-Ion ConcentrationSubstrate SpecificityPentagastrinChymotrypsinTrypsinCathepsinsPepsinogen AMolecular WeightEnzyme PrecursorsGastric MucosaHydrolysisKineticsPancreatinElectrophoresis, Polyacrylamide GelPeptide FragmentsNorleucineBinding SitesChymosinAmino AcidsOligopeptidesCysteine Proteinase InhibitorsPapainUbiquitin-Specific ProteasesRecombinant ProteinsBase SequenceEndopeptidase ClpSubtilisinsModels, MolecularSwineMetalloendopeptidasesCalpainPeptidesPneumonia, AspirationSecretory RateCollagenSequence Homology, Amino AcidCloning, MolecularTrypsin InhibitorsProtein Processing, Post-TranslationalChromatography, GelStomachThermolysinEscherichia coliBacterial ProteinsGastric Acid