Hepatitis B Virus, WoodchuckRNA Processing, Post-TranscriptionalRegulatory Sequences, Nucleic AcidHepatitis B virusRNA, ViralRegulatory Elements, TranscriptionalPromoter Regions, GeneticBase SequenceTranscription, GeneticMolecular Sequence DataEnhancer Elements, GeneticGene Expression RegulationRNA, MessengerTranscription FactorsGenes, RegulatorResponse ElementsSterol Regulatory Element Binding Protein 1DNA-Binding ProteinsDNA Transposable ElementsBinding SitesGenes, ReporterCell LineTransfectionChloramphenicol O-AcetyltransferaseSequence Homology, Nucleic Acid3' Untranslated RegionsSterol Regulatory Element Binding Protein 2IntronsPlasmidsDNAConserved SequenceNuclear ProteinsCloning, MolecularDeoxyribonuclease IRegulatory Sequences, Ribonucleic AcidMutationRestriction MappingRNA StabilityAmino Acid SequenceSequence DeletionRepetitive Sequences, Nucleic AcidRNA-Binding ProteinsExonsProtein BindingMice, TransgenicGene Expression Regulation, EnzymologicCCAAT-Enhancer-Binding ProteinsGenesTranscriptional ActivationLuciferasesHeLa CellsDNA PrimersCells, CulturedDNA FootprintingCell Nucleus5' Untranslated Regions5' Flanking RegionTransgenesSequence AlignmentRepressor ProteinsGene ExpressionSterol Regulatory Element Binding ProteinsSequence Analysis, DNATumor Cells, CulturedProtein BiosynthesisGene Expression Regulation, ViralRecombinant Fusion ProteinsConsensus SequenceGene Expression Regulation, DevelopmentalBlotting, NorthernTrans-ActivatorsMicroRNAsModels, GeneticSilencer Elements, TranscriptionalNucleic Acid ConformationSp1 Transcription FactorGlobinsOrgan SpecificityTrace ElementsHu Paraneoplastic Encephalomyelitis AntigensGene Expression Regulation, BacterialAlu ElementsFinite Element AnalysisHomeodomain ProteinsElectrophoretic Mobility Shift AssayMutagenesis, Site-DirectedMultigene FamilyElementsOligodeoxyribonucleotidesbeta-GalactosidaseChromosome MappingRNAChromatinDrosophila melanogasterInsulator ElementsLac OperonRNA SplicingDrosophilaDNA Mutational AnalysisPolymerase Chain Reaction