Xenopus laevisXenopusOocytesXenopus ProteinsMicroinjectionsEmbryo, NonmammalianMolecular Sequence DataOvumRNA, ComplementaryAmino Acid SequenceOogenesisBase SequenceCloning, MolecularMetamorphosis, BiologicalRNA, MessengerGastrulaGene Expression Regulation, DevelopmentalMeiosisLarvaMembrane PotentialsSequence Homology, Amino AcidMaturation-Promoting FactorProto-Oncogene Proteins c-mosDNA, ComplementaryVitellogeninsIn Situ HybridizationElectrophysiologyKineticsIon Channel GatingBlastulaRecombinant ProteinsOocyte DonationRNAPotassium ChannelsTranscription, GeneticFertilizationEmbryonic InductionDNACarrier ProteinsMesodermCell ExtractsPatch-Clamp TechniquesEctodermProtein BiosynthesisBiological TransportGene ExpressionCell NucleusOocyte RetrievalRNA, Ribosomal, 5STranscription Factor TFIIIANucleoplasminsEmbryonic DevelopmentSodium ChannelsEgg ProteinsPoly AZygoteBody PatterningBlastocystTranscription FactorsElectric ConductivitySequence AlignmentCell MembraneMutationTime FactorsMetaphaseProgesteroneIon ChannelsGenes, mosDose-Response Relationship, DrugCDC2 Protein KinaseNervous SystemSodiumCalciumOvaryEpithelial Sodium ChannelsMorphogenesisIn Vitro Oocyte Maturation TechniquesChloride ChannelsChloridesMutagenesis, Site-DirectedRecombinant Fusion ProteinsSignal TransductionAnimals, Genetically ModifiedRNA, RibosomalSymportersMelanophoresPotassium Channels, Voltage-GatedCytoplasmCells, CulturedReceptors, NicotinicMembrane ProteinsOligonucleotides, AntisenseSpermatozoaBlastomeresSpecies SpecificityModels, BiologicalProtein BindingActivinsSperm-Ovum InteractionsGene Expression Regulation