Cytoplasmic GranulesOvumFertilizationExocytosisSea UrchinsSperm-Ovum InteractionsOocytesHyalinZona PellucidaEchinodermataEgg ProteinsOogenesisZygoteSecretory VesiclesStarfishParthenogenesisMicroscopy, ElectronSeparaseVitelline MembraneChromaffin GranulesMeiosisMicroinjectionsMetaphaseFertilization in VitroSpermatozoaMicroscopy, ConfocalAmyloseOrganellesCalciumPlant LectinsLectinsBenzamidinesGlucan 1,3-beta-GlucosidaseMicroscopy, ImmunoelectronCalcimycinAcrosomeCell MembraneMicroscopy, Fluorescencerab3 GTP-Binding ProteinsBlastocystCerebellumMaturation-Promoting FactorMarsupialiaIonophoresActin CytoskeletonCytochalasin DTime FactorsHSP40 Heat-Shock ProteinsCytoplasmMolecular Sequence DataPeroxidasesInositol 1,4,5-TrisphosphateSwineCell NucleusCells, CulturedImmunochemistryEsterasesGolgi ApparatusFallopian Tubesbeta-N-AcetylhexosaminidasesXenopusDentate Gyrusrab GTP-Binding ProteinsCaenorhabditis elegans ProteinsXenopus laevisAmino Acid SequenceCryopreservationBlastomeresSubcellular FractionsOvulationImmunohistochemistryRNA, MessengerReceptors, Cell SurfaceMembrane ProteinsVideo RecordingHydrogen-Ion ConcentrationCaenorhabditis elegansKineticsEmbryo, NonmammalianFluorescent Antibody TechniqueMembrane GlycoproteinsOvaryRNAChromaffin SystemIn Situ HybridizationCulture MediaBiological TransportMicroscopyActinsProtein Kinase CMolecular WeightEndopeptidasesTetradecanoylphorbol AcetatePhylogenyGastrointestinal ContentsIsoenzymesMitochondriaNeuronsPregnancyChromogranins