AcrosomeSpermatozoaAcrosome ReactionCalcium SignalingAcrosinSperm CapacitationCalcium ChannelsSperm HeadCalcium, DietaryZona PellucidaSperm-Ovum InteractionsEchinodermataSperm MotilityExocytosisFertilizationCalcium CarbonateCalcium ChlorideSpermatidsCalcimycinHorseshoe Crabsrab3A GTP-Binding ProteinCalcium PhosphatesCalcium IsotopesSemen PreservationSpermatogenesisSea CucumbersCalcium Channels, L-TypeSperm MidpieceEpididymisPeanut AgglutininCalcium OxalateCalcium GluconateAnnelidaEgg ProteinsMicroscopy, ElectronSperm TailIonophoresVitelline DuctCalcium RadioisotopesSperm MaturationEgtazic AcidTestisSperm AgglutinationCalcium CompoundsCalcium Channels, N-TypeLasalocidMicroscopy, ImmunoelectronHyaluronoglucosaminidaseSeminal Plasma ProteinsCalcium Channel AgonistsChlortetracyclineMolecular Sequence DataOvumCryopreservationCattleAmino Acid SequenceFluorescent DyesKineticsChelating AgentsMacropodidaeThapsigarginCells, CulturedCalcium-Binding ProteinsActinsCalcium HydroxidePhosphorusCalcium IonophoresMembrane ProteinsGuinea PigsSeminal Vesicle Secretory ProteinsNifedipineCalcium SulfateEjaculationEnzyme PrecursorsTime FactorsVitelline MembraneSwineParathyroid HormoneMembrane PotentialsArachnidaMagnesiumHydrogen-Ion ConcentrationBlotting, WesternElectrophoresis, Polyacrylamide GelRabbitsSynaptotagminsFura-2Cell MembraneMicroscopy, FluorescenceCalcium CitrateShrewsFluorescent Antibody Technique, IndirectCell BiologyFluorescent Antibody TechniqueMandelic AcidsSemenCalciumFluorescein-5-isothiocyanateCalmodulinS100 Calcium Binding Protein G