Transcription, GeneticPromoter Regions, GeneticGene Expression RegulationTranscription FactorsBase SequenceMolecular Sequence DataRNA InterferenceDNA-Binding ProteinsRNA, MessengerCell LineGene Expression Regulation, EnzymologicBinding SitesTranscriptional ActivationGenes, ReporterRNA, Small InterferingReverse Transcriptase Polymerase Chain ReactionNuclear ProteinsProtein BindingAmino Acid SequenceTransfectionGene Expression Regulation, BacterialSp1 Transcription FactorRepressor ProteinsCloning, MolecularRegulatory Sequences, Nucleic AcidElectrophoretic Mobility Shift AssayGene Expression Regulation, DevelopmentalMutationResponse ElementsLuciferasesDNACells, CulturedChromatin ImmunoprecipitationSignal TransductionBlotting, NorthernGene Expression ProfilingTranscription Initiation SiteTrans-ActivatorsDNA PrimersHeLa CellsGene Expression Regulation, FungalGene SilencingCell Nucleus5' Flanking RegionCell Line, TumorPlasmidsProtein BiosynthesisHistonesRNA, Double-StrandedTumor Cells, CulturedOligonucleotide Array Sequence AnalysisChromatinModels, GeneticUp-RegulationGene Expression Regulation, PlantEnhancer Elements, GeneticDrosophila ProteinsDNA, ComplementaryBlotting, WesternDown-RegulationGene Expression Regulation, NeoplasticCaenorhabditis elegansRecombinant Fusion ProteinsHomeodomain ProteinsRNA StabilityCell DifferentiationBacterial ProteinsIn Situ HybridizationRNA-Binding ProteinsSaccharomyces cerevisiaeRegulatory Elements, TranscriptionalModels, BiologicalGene Knockdown TechniquesChloramphenicol O-AcetyltransferaseRNAPhenotypeOperonDrosophilaCarrier ProteinsDNA FootprintingSequence AlignmentGene Regulatory NetworksCaenorhabditis elegans ProteinsSequence Homology, Amino AcidGenes, RegulatorSaccharomyces cerevisiae ProteinsPolymerase Chain ReactionSequence DeletionOrgan SpecificityProtein Structure, TertiaryLiverDrosophila melanogasterExonsSequence Analysis, DNARestriction Mapping5' Untranslated RegionsMultigene FamilyCyclic AMP Response Element-Binding ProteinMutagenesis, Site-DirectedConserved Sequence