HIV Protease InhibitorsHIV ProteaseNelfinavirRitonavirIndinavirSaquinavirLopinavirHIV InfectionsPyrimidinonesProtease InhibitorsSpike Glycoprotein, CoronavirusCarbamatesHIV SeropositivitySARS VirusHIV-1Molecular Sequence DataAmino Acid SequencePeptide HydrolasesSerine EndopeptidasesAnti-HIV AgentsEndopeptidasesOligopeptidesPepstatinsViral Envelope ProteinsHIVSulfonamidesCysteine ProteasesProtease LaDrug Resistance, ViralATP-Dependent ProteasesCell LineAspartic Acid EndopeptidasesPyridinesModels, MolecularMembrane GlycoproteinsIron-Sulfur ProteinsLipodystrophyCysteine EndopeptidasesCoronavirusBinding SitesProtein BindingDrug DesignHIV SeroprevalenceSubstrate SpecificityMutationBase SequenceSevere Acute Respiratory SyndromeVitronectinHIV SeronegativityReverse Transcriptase InhibitorsProtease NexinsDrug InteractionsProtein PrecursorsMurine hepatitis virusCells, CulturedSerine Proteinase InhibitorsKineticsDidanosineEscherichia coliGinkgolidesTransmissible gastroenteritis virusHIV-2Recombinant ProteinsStructure-Activity RelationshipPyronesVirus ReplicationCrystallography, X-RayGene Products, gagOrganic Cation Transporter 1P-GlycoproteinCytochrome P-450 CYP3AAntiretroviral Therapy, Highly ActiveZidovudineMolecular WeightGlycoproteinsCoronavirus 229E, HumanDose-Response Relationship, DrugApoptosisHeparin AntagonistsChromatography, High Pressure LiquidCaspases2S Albumins, PlantHIV AntigensCoronaviridaeAIDS SerodiagnosisCloning, MolecularAcquired Immunodeficiency SyndromeBlotting, WesternUreaMolecular StructureProtein Processing, Post-TranslationalElectrophoresis, Polyacrylamide GelAntithrombin IIITrypsinAdipocytesCoronavirus InfectionsCathepsinsProtein Structure, TertiaryPlasmidsSequence Homology, Amino Acid