DNA PackagingGenetic VectorsVirus AssemblyHelper VirusesRetroviridaeProduct PackagingFood PackagingAdenovirus E1 ProteinsDrug PackagingLeukemia Virus, Gibbon ApeLeukemia Virus, MurineCell LineMoloney murine leukemia virusGenetic TherapyGene Transfer TechniquesTransduction, GeneticGenes, polVirionVirus ReplicationGenes, gagFusion Proteins, gag-polDefective VirusesGenes, envRNA, ViralTransfectionRetroviruses, SimianDNA, Viral3T3 CellsBacillus PhagesPlasmidsBase SequenceViral ProteinsLentivirusAvian leukosis virusRecombination, GeneticGenome, ViralMolecular Sequence DataViral Structural ProteinsCapsidViral Envelope ProteinsGenes, ViralDependovirusAdenoviridaeProvirusesGene ExpressionHematopoietic Stem CellsBacteriophage phi 6Genetic EngineeringRepetitive Sequences, Nucleic AcidGene Expression Regulation, ViralCercopithecus aethiopsGene Products, envCell Line, TransformedLuminescent ProteinsHIV-1Bacteriophage T3Green Fluorescent ProteinsCricetinaeHeLa CellsNucleic Acid ConformationCapsid ProteinsNucleocapsidGene Products, gagRecombinant Fusion ProteinsBacteriophage lambdaDNA PrimersEndodeoxyribonucleasesPolymerase Chain ReactionMembrane GlycoproteinsBacteriophage T4Cells, CulturedProduct LabelingBacteriophagesMolecular Motor ProteinsMutationTumor Cells, CulturedCryoelectron MicroscopyChromomycin A35' Untranslated RegionsNucleocapsid ProteinsGene Products, polSequence DeletionRNA Phagesgag Gene Products, Human Immunodeficiency VirusHerpesvirus 1, HumanAmino Acid SequenceBacteriophage P22Vero CellsTobacco ProductsCystoviridaeBromovirusModels, MolecularRNA, Double-StrandedBacteriophage PRD1Adenoviruses, HumanViral Core ProteinsLysine-tRNA LigaseSpumavirusProtein BindingDimerization