AcrosomeSpermatozoaAcrosome ReactionSperm HeadAcrosinSperm-Ovum InteractionsZona PellucidaSperm CapacitationPeanut AgglutininCell MembraneFertilizationMicroscopy, ElectronSperm MotilityAntigens, CD46HyaluronoglucosaminidaseSpermatocidal AgentsMembranesExocytosisWheat Germ AgglutininsEpididymisMembrane LipidsMicroscopy, ImmunoelectronIntracellular MembranesMembrane PotentialsMembranes, ArtificialOvumLectinsMembrane FusionGuinea PigsTestisCattleElectrophoresis, Polyacrylamide GelMembrane ProteinsErythrocyte MembraneEchinodermataMembrane FluiditySwineCell Membrane PermeabilityBasement MembraneSpermatidsHorseshoe Crabsrab3A GTP-Binding ProteinMembrane GlycoproteinsSemen PreservationCalciumMembrane Transport ProteinsSpermatogenesisSea CucumbersCalcimycinProtein TransportLipid BilayersSperm MidpieceEgg ProteinsAnnelidaMitochondrial MembranesMolecular Sequence DataProtein BindingSperm TailModels, BiologicalVitelline DuctFreeze FracturingSperm MaturationAmino Acid SequenceSynaptic MembranesCarrier ProteinsCell FractionationMicroscopy, FluorescenceHydrogen-Ion ConcentrationMolecular WeightFluorescent Antibody TechniqueDetergentsProtein Structure, TertiaryVitelline MembraneCell LineLiposomesIonophoresSperm AgglutinationBlotting, WesternActinsGolgi ApparatusFluorescent DyesCells, CulturedOctoxynolReceptors, Cell SurfaceCricetinaeExtraembryonic MembranesRabbitsEscherichia coliCryopreservationEndoplasmic ReticulumMicroscopy, ConfocalSeminal Plasma ProteinsPhosphatidylcholinesRecombinant Fusion ProteinsSubcellular FractionsCytoplasmMutationTime FactorsFluorescent Antibody Technique, IndirectBase Sequence