Smad ProteinsSmad2 ProteinSmad4 ProteinSmad6 ProteinSmad3 ProteinSmad5 ProteinSmad1 ProteinSmad8 ProteinSmad Proteins, Receptor-RegulatedSmad7 ProteinTransforming Growth Factor betaBone Morphogenetic ProteinsTrans-ActivatorsSignal TransductionReceptors, Transforming Growth Factor betaSmad Proteins, InhibitoryActivinsDNA-Binding ProteinsActivin Receptors, Type IBone Morphogenetic Protein ReceptorsTransforming Growth Factor beta1Bone Morphogenetic Protein 2Bone Morphogenetic Protein Receptors, Type IXenopus ProteinsBone Morphogenetic Protein 4Activin ReceptorsMinkCOS CellsProtein BindingInhibin-beta SubunitsTranscription, GeneticPromoter Regions, GeneticPhosphorylationTranscriptional ActivationTranscription FactorsCell LineBone Morphogenetic Protein 7InhibinsGene Expression RegulationCell NucleusTransforming Growth Factor beta2Activin Receptors, Type IIGenes, ReporterInhibitor of Differentiation Protein 1XenopusBone Morphogenetic Protein 6Cell DifferentiationReceptors, Growth FactorResponse ElementsMolecular Sequence DataLuciferasesGene Expression Regulation, DevelopmentalActive Transport, Cell NucleusProtein-Serine-Threonine KinasesCells, CulturedMesodermTransfectionBase SequenceUbiquitin-Protein LigasesSp1 Transcription FactorReverse Transcriptase Polymerase Chain ReactionOsteoblastsHomeodomain ProteinsRepressor ProteinsFollicle Stimulating Hormone, beta SubunitEmbryo, NonmammalianTwo-Hybrid System TechniquesProtein Structure, TertiaryBinding SitesRNA, MessengerAmino Acid SequenceConnective Tissue Growth FactorCore Binding Factor Alpha 1 SubunitModels, BiologicalFibrosisCell Line, TumorBlotting, WesternEpithelial CellsLIM Domain ProteinsAlkaline PhosphataseMutationPhosphoproteinsNuclear Proteinsp300-CBP Transcription FactorsEmbryo, MammalianBody PatterningRecombinant Fusion ProteinsCollagen Type IFibroblastsRNA, Small InterferingElectrophoretic Mobility Shift AssayPlasminogen Activator Inhibitor 1OsteogenesisIntracellular Signaling Peptides and ProteinsDNARNA InterferenceRecombinant ProteinsCell ProliferationUbiquitinLigands