Giant CellsCell FusionViral Fusion ProteinsCytopathogenic Effect, ViralMembrane FusionPropiolactoneOrthoreovirusGene Products, envCell LineHIV-1Antigens, CD4HIV Envelope Protein gp120Viral Envelope ProteinsVirus ReplicationReceptors, VirusAvulavirus InfectionsMeasles virusVero CellsHIV Envelope Protein gp41Molecular Sequence DataRespirovirusCercopithecus aethiopsAmino Acid SequenceAvulavirusHenipavirus InfectionsRetroviridae Proteins, OncogenicVirus Physiological ProcessesVirus InternalizationParamyxoviridaeOrthoreovirus, AvianHuman T-lymphotropic virus 1Leukemia Virus, BovineNipah VirusHeLa CellsHN ProteinAntigens, CD46Newcastle disease virusDistemper Virus, CanineGenes, envLeukemia Virus, MurineRadioimmunoprecipitation AssaySpike Glycoprotein, CoronavirusHIVHemagglutinins, ViralHIV Envelope Protein gp160HIV-2Immunodeficiency Virus, FelineReceptors, CXCR4GalanthusImmunodeficiency Virus, BovineTrophoblastsTunicamycinNematodaCells, CulturedNeutralization TestsMurine hepatitis virusFurinCricetinaeVirionRespiratory Syncytial VirusesCD4-Positive T-LymphocytesParainfluenza Virus 3, HumanTransfectionHIV Core Protein p24Antiviral AgentsHuman T-lymphotropic virus 2Antibodies, MonoclonalBase SequenceReoviridaeMutationVaccinia virusRNA-Directed DNA PolymeraseMembrane GlycoproteinsViral ProteinsT-LymphocytesMutagenesis, Site-DirectedHIV AntibodiesGlycosylationProtein Processing, Post-TranslationalViral Plaque AssaySulfoglycosphingolipidsStructure-Activity RelationshipTumor Cells, CulturedRespiratory Syncytial Virus, HumanRetroviridaeAntigens, CDHIV AntigensLymphocyte Function-Associated Antigen-1Cell MembraneGenes, ViralProvirusesCatsJurkat CellsHydrogen-Ion ConcentrationAntibodies, ViralAcquired Immunodeficiency SyndromeGene Expression Regulation, ViralAnti-HIV AgentsGlycoproteinsNeuraminidase