Neural CrestNeurulationNeural TubeEctodermNervous SystemNeural Tube DefectsChick EmbryoAmbystoma mexicanumEmbryo, NonmammalianSkullCentral Nervous SystemMorphogenesisIn Situ HybridizationGene Expression Regulation, DevelopmentalEmbryo, MammalianXenopus ProteinsGallic AcidMicroscopy, Electron, ScanningAmbystomaMesodermGastrulaNotochordQuailMesencephalonPapaverineBody PatterningHeadRhombencephalonXenopus laevisXenopusEmbryonic and Fetal DevelopmentGenes, HomeoboxCell MovementMicroscopy, ElectronHomeodomain ProteinsEmbryonic InductionTranscription FactorsMolecular Sequence DataCulture TechniquesReceptor, Platelet-Derived Growth Factor alphaColchicineEpitheliumDiazepamNocodazoleCell FusionAmino Acid SequenceCell DifferentiationTime FactorsCadherinsMembrane FusionImmunohistochemistryBrainSignal TransductionKineticsCell LineBase SequenceMutationCells, CulturedPhagosomesVocal CordsCell MembraneRNA, MessengerModels, MolecularExocytosisVacuolesLysosomesProtein BindingBinding SitesMembrane ProteinsProtein Structure, TertiaryGiant CellsMyoblastsTranslocation, GeneticProtein FoldingHydrogen-Ion ConcentrationPalateOncogene Proteins, FusionEndosomesRecombinant ProteinsRecombinant Fusion ProteinsProtein ConformationEscherichia coliModels, BiologicalSNARE ProteinsSequence Homology, Amino AcidVesicular Transport ProteinsCloning, MolecularTransport VesiclesLiposomesEndocytosisTranscription, GeneticGolgi ApparatusOrganellesSperm-Ovum InteractionsTransfectionDNA-Binding ProteinsSecretory VesiclesCricetinaeGene ExpressionCytoplasmic Vesicles