Acrosome ReactionSpermatozoaSperm CapacitationSynaptic VesiclesSperm-Ovum InteractionsZona PellucidaTransport VesiclesSperm MotilityCytoplasmic VesiclesSeminal VesiclesAcrosinSperm HeadSecretory VesiclesSpermatidsFertilizationExocytosisMicroscopy, ElectronCell MembraneSpermatogenesisIonophoresEgg ProteinsCalcimycinPeanut AgglutininEpididymisCOP-Coated VesiclesOvumSperm TailCalciumTestisVitelline MembraneGolgi ApparatusSemen PreservationLiposomesMembrane FusionMicroscopy, ImmunoelectronAsteriasClathrin-Coated VesiclesInfertility, MaleSea Urchinsrab3A GTP-Binding ProteinSeminal Plasma ProteinsSemenVesicular Transport ProteinsFertilization in VitroBiological TransportChlortetracyclineSperm MaturationEndocytosisKineticsMolecular Sequence DataCattleHydrogen-Ion ConcentrationMicroscopy, FluorescenceShrewsAmino Acid SequencePhosphatidylcholinesPhospholipidsFluorescent DyesIntracellular MembranesSperm MidpieceSNARE ProteinsSperm AgglutinationMacropodidaeMembrane GlycoproteinsCalcium IonophoresSynaptotagminsClathrinCarrier ProteinsBenzamidinesOocytesCricetinaeLipid BilayersFluorescent Antibody TechniqueMicroscopy, Electron, TransmissionSperm CountProtein TransportEndosomesCryopreservationNigericinPimozideOrganellesFreeze FracturingSwineNerve Tissue ProteinsFluorescein-5-isothiocyanatePyridinium CompoundsSemen AnalysisGuinea PigsQa-SNARE ProteinsCell FractionationLysophosphatidylcholinesFertilityMicrovilliMicroscopy, ConfocalElectrophoresis, Polyacrylamide GelCytoplasmic GranulesBlotting, WesternModels, BiologicalMembrane LipidsAntigens, CD46