Activin Receptors, Type IIActivin ReceptorsActivinsActivin Receptors, Type IMyostatinSmad3 ProteinSmad4 ProteinInhibinsSmad7 ProteinInhibin-beta SubunitsFollistatinReceptors, Transforming Growth Factor betaReceptors, Interleukin-1 Type ISmad1 ProteinSmad ProteinsReceptors, Growth FactorSmad5 ProteinTransforming Growth Factor betaSmad2 ProteinReceptors, Interleukin-1Signal TransductionRNA, MessengerSmad8 ProteinReceptors, Tumor Necrosis Factor, Type IProtein-Serine-Threonine KinasesBone Morphogenetic ProteinsReceptors, Interleukin-1 Type IINodal ProteinCells, CulturedInterleukin-1 Receptor Accessory ProteinMinkBone Morphogenetic Protein Receptors, Type IMolecular Sequence DataInterleukin-1Gene ExpressionTrans-ActivatorsReceptors, Tumor Necrosis FactorInterleukin 1 Receptor Antagonist ProteinCell LineGrowth Differentiation FactorsReverse Transcriptase Polymerase Chain ReactionBone Morphogenetic Protein Receptors, Type IIMice, Inbred C57BLMesodermReceptors, Cell SurfaceTransforming Growth Factor beta1Base SequenceDNA-Binding ProteinsXenopus ProteinsSialoglycoproteinsGene Expression Regulation, DevelopmentalImmunohistochemistryIn Situ HybridizationInterferon Type ICollagen Type ICell DifferentiationScavenger Receptors, Class BGrowth SubstancesGene Expression RegulationEmbryonic InductionXenopusMice, KnockoutAmino Acid SequenceMyositis OssificansReceptors, ScavengerGlycoproteinsGranulosa CellsAntigens, CD36