Transcription FactorsTrans-ActivatorsTranscription, GeneticSTAT3 Transcription FactorDNA-Binding ProteinsPromoter Regions, GeneticMolecular Sequence DataSignal TransductionTransducersBase SequenceTranscriptional ActivationSTAT1 Transcription FactorBinding SitesAmino Acid SequenceGene Expression RegulationCell LineRepressor ProteinsSTAT5 Transcription FactorProtein BindingRNA, MessengerBasic-Leucine Zipper Transcription FactorsHerpesvirus 8, HumanMutationPhosphorylationBacterial ProteinsImmediate-Early ProteinsNuclear ProteinsRecombinant Fusion ProteinsEscherichia coliTransfectionDNAProtein Sorting SignalsGene Expression Regulation, BacterialGenes, ReporterPlasmidsCell NucleusSaccharomyces cerevisiae ProteinsEscherichia coli ProteinsGene Expression Regulation, ViralCloning, MolecularMelibioseCells, CulturedSTAT Transcription FactorsSaccharomyces cerevisiaeProtein Structure, TertiarySTAT6 Transcription FactorElectrophoretic Mobility Shift AssayDNA-Directed RNA PolymerasesMilk ProteinsHeLa CellsFrozen FoodsSp1 Transcription FactorTissue Plasminogen ActivatorCytokine Receptor gp130Regulatory Sequences, Nucleic AcidSuppressor of Cytokine Signaling ProteinsBlotting, WesternJanus Kinase 2Gene Expression Regulation, FungalGene ExpressionCarrier ProteinsJanus KinasesSequence Homology, Amino AcidFungal ProteinsOperonRecombinant ProteinsCyclic AMP Receptor ProteinPlasminogen Activator Inhibitor 1beta-GalactosidaseLuciferasesTranscription Factor AP-1Cell Line, TumorInterleukin-6Urokinase-Type Plasminogen ActivatorJanus Kinase 1Response ElementsReverse Transcriptase Polymerase Chain ReactionSTAT2 Transcription FactorTwo-Hybrid System TechniquesDimerizationViral ProteinsTransducers, PressureCell DifferentiationDeoxyribonuclease IPhenotypeModels, GeneticVirus ReplicationTranscription Initiation SiteTumor Cells, CulturedMutagenesis, Site-DirectedGene DeletionSequence AlignmentLeucine ZippersModels, BiologicalNF-kappa BDNA, BacterialMice, KnockoutKineticsSTAT4 Transcription FactorMice, Inbred C57BL