Xenopus laevisXenopusXenopus ProteinsOocytesEmbryo, NonmammalianMetamorphosis, BiologicalOvumMolecular Sequence DataGastrulaMicroinjectionsAmino Acid SequenceBase SequenceLarvaGene Expression Regulation, DevelopmentalCloning, MolecularVitellogeninsRNA, MessengerBlastulaRNA, ComplementaryIn Situ HybridizationSequence Homology, Amino AcidEmbryonic InductionMesodermEctodermOogenesisCell ExtractsDNA, ComplementaryDNATranscription, GeneticMelanophoresRNA, Ribosomal, 5STranscription Factor TFIIIABody PatterningNervous SystemCarrier ProteinsMorphogenesisNucleoplasminsRNATranscription FactorsKineticsAnimals, Genetically ModifiedRNA, RibosomalBiological TransportGene ExpressionSequence AlignmentTailNotochordMembrane PotentialsProtein BiosynthesisRecombinant ProteinsCell NucleusActivinsSymportersSpecies SpecificityAmphibiansSequence Homology, Nucleic AcidTime FactorsElectrophysiologyMaturation-Promoting FactorPoly AZygoteBlastomeresHomeodomain ProteinsEgg ProteinsGenesDNA-Binding ProteinsPlasmidsFertilizationNucleic Acid HybridizationGastrulationEmbryonic DevelopmentSodiumVitelline MembraneBlotting, NorthernSignal TransductionGene LibraryT-Box Domain ProteinsMutationGene Expression RegulationAnuraNuclear ProteinsDNA PrimersNeural CrestMeiosisOligonucleotides, AntisenseRecombinant Fusion ProteinsIon Channel GatingBone Morphogenetic ProteinsThyroid HormonesMicroscopy, ElectronEndodermCell MembraneCell-Free SystemDose-Response Relationship, DrugMitosisAlbinismReverse Transcriptase Polymerase Chain ReactionProtein BindingBinding SitesBufonidae