Xenopus laevisXenopusXenopus ProteinsWaterOocytesEmbryo, NonmammalianWater SupplyMetamorphosis, BiologicalMolecular Sequence DataOvumMicroinjectionsAmino Acid SequenceGastrulaLarvaBase SequenceGene Expression Regulation, DevelopmentalFresh WaterBody WaterCloning, MolecularRNA, MessengerVitellogeninsWater PollutionBlastulaWater PurificationRNA, ComplementaryIn Situ HybridizationSequence Homology, Amino AcidEmbryonic InductionMesodermEctodermWater Pollutants, ChemicalDNA, ComplementaryOogenesisCell ExtractsDNATranscription, GeneticWater PollutantsMelanophoresKineticsRNA, Ribosomal, 5STranscription Factor TFIIIABody PatterningCarrier ProteinsNervous SystemMorphogenesisRNANucleoplasminsTranscription FactorsTime FactorsAnimals, Genetically ModifiedRNA, RibosomalGene ExpressionSequence AlignmentTailBiological TransportMembrane PotentialsAquaporinsNotochordRecombinant ProteinsSpecies SpecificitySodiumProtein BiosynthesisCell NucleusWater DeprivationAmphibiansSymportersElectrophysiologySequence Homology, Nucleic AcidActivinsZygoteMaturation-Promoting FactorPoly AHomeodomain ProteinsEgg ProteinsBlastomeresNucleic Acid HybridizationGenesPlasmidsFertilizationDNA-Binding ProteinsAnuraGastrulationModels, BiologicalEmbryonic DevelopmentMutationWater MovementsSignal TransductionGene LibraryBlotting, NorthernVitelline MembraneDose-Response Relationship, DrugAquaporin 1DNA PrimersGene Expression RegulationCell MembraneMicroscopy, ElectronWater SofteningPhylogenyBinding SitesT-Box Domain Proteins