AcrosomeSpermatozoaAcrosome ReactionAcrosinSperm CapacitationSperm HeadZona PellucidaSperm-Ovum InteractionsEchinodermataSperm MotilityExocytosisFertilizationSpermatidsHorseshoe Crabsrab3A GTP-Binding ProteinSemen PreservationSpermatogenesisSea CucumbersSperm MidpiecePeanut AgglutininEpididymisAnnelidaCalcimycinEgg ProteinsVitelline DuctSperm TailSperm MaturationMicroscopy, ElectronSperm AgglutinationTestisHyaluronoglucosaminidaseMicroscopy, ImmunoelectronSeminal Plasma ProteinsIonophoresCryopreservationMacropodidaeChlortetracyclineGuinea PigsLasalocidOvumVitelline MembraneSeminal Vesicle Secretory ProteinsEjaculationEnzyme PrecursorsCell MembraneArachnidaShrewsCalciumMandelic AcidsActinsCell BiologySemenFluorescent Antibody Technique, IndirectCalcium ChlorideInfertility, MaleCattleFluorescein-5-isothiocyanateChordataSemen AnalysisSperm TransportSynaptotagminsAntigensAntigens, CD46Electrophoresis, Polyacrylamide GelFluorescent Antibody TechniqueMolecular Sequence DataSwineAmino Acid SequenceMicroscopy, Phase-ContrastMembrane ProteinsBlotting, WesternWheat Germ AgglutininsAcinonyxFertilization in VitroLectinsPovidoneAristolochic AcidsContraceptive AgentsReceptors, Cell SurfaceAntelopesVasectomyCalcium IonophoresFertilityFreeze FracturingCryoprotective AgentsContraception, Immunologicrab3 GTP-Binding ProteinsLysophosphatidylcholinesMembrane FusionCerebroside-SulfataseBenzamidinesPhosphoinositide Phospholipase CSea UrchinsReceptors, Concanavalin AInsemination, ArtificialOsmosisOctoxynolMolecular WeightSpermatocidal AgentsGenes, Y-Linked