Protease InhibitorsTartronatesHIV Protease InhibitorsKineticsEnzyme InhibitorsDrug InteractionsHIV ProteaseHIV InfectionsSerine Proteinase InhibitorsMathematicsSubstrate SpecificityBinding SitesCytochrome P-450 Enzyme SystemMicrosomes, LiverCattleDose-Response Relationship, DrugHydrogen-Ion ConcentrationModels, BiologicalProtein BindingSerine EndopeptidasesPeptide HydrolasesSecretory Leukocyte Peptidase InhibitorSaquinavirEndopeptidasesIndinavirRitonavirHIV SeropositivityNelfinavirProteinase Inhibitory Proteins, SecretoryTrypsin InhibitorsSerpinsCysteine ProteasesHIV-1Cysteine EndopeptidasesMolecular Sequence DataAmino Acid SequenceCysteine Proteinase InhibitorsAnti-HIV AgentsProtease NexinsCarbamatesDrug Resistance, ViralLopinavirPyrimidinonesalpha 1-AntitrypsinAprotininProtease LaTosyllysine Chloromethyl KetoneGabexateOligopeptidesATP-Dependent ProteasesTrypsin Inhibitor, Bowman-Birk SoybeanPepstatinsAntipainCathepsinsTosylphenylalanyl Chloromethyl KetoneHIV SeronegativityPhenylmethylsulfonyl FluorideReverse Transcriptase InhibitorsTrypsin Inhibitor, Kunitz SoybeanHIV SeroprevalenceCystatinsLeupeptinsViral LoadChymotrypsinPancreatic ElastaseCD4 Lymphocyte CountTrypsinBase SequenceRecombinant ProteinsDrug Resistance, Multiple, ViralMutationAcquired Immunodeficiency SyndromeCell LineSerpin E2Leukocyte ElastaseSulfonamidesAspartic Acid EndopeptidasesSerine ProteasesMolecular WeightSubtilisinsAntiretroviral Therapy, Highly ActiveModels, MolecularHIV Reverse TranscriptaseElectrophoresis, Polyacrylamide GelAnti-Retroviral AgentsElafinalpha-MacroglobulinsCalpainHydrolysisCathepsin LAntiviral AgentsMetalloendopeptidasesCells, CulturedCathepsin GViral Nonstructural ProteinsTrypsin Inhibitor, Kazal PancreaticProtein Processing, Post-TranslationalSequence Homology, Amino AcidChymasesCloning, Molecular