SpermatogenesisSpermatidsSpermatozoaTestisAcrosomeSperm TailProtaminesSperm HeadInfertility, MaleCharaSeminiferous EpitheliumSpermatocytesSeminiferous TubulesSertoli CellsSex ChromatinChromomycin A3HeteropteraMeiosisHaploidyFertilityEpididymisMicroscopy, ElectronTATA Box Binding Protein-Like ProteinsPeriodic Acid-Schiff ReactionCell NucleusSperm MotilityBlood-Testis BarrierSperm MaturationSpermatogoniaHistonesAsthenozoospermiaGerm CellsMolecular Sequence DataAcrosinSperm CountChromatinChromosomal Proteins, Non-HistoneFertilizationGenes, Y-LinkedOligospermiaDNA BreaksSeptinsImmunohistochemistryAmino Acid SequenceCytoplasmAcrosome ReactionRNA, MessengerMicroscopy, ImmunoelectronSex ChromosomesChromatin Assembly and DisassemblyAlgal ProteinsFlagellaMice, KnockoutBlotting, NorthernCyclic AMP Response Element ModulatorCentriolesDisorders of Sex DevelopmentY ChromosomeNuclear ProteinsMicroscopy, Electron, TransmissionPoly Adenosine Diphosphate RiboseProteinsLeydig CellsBase SequenceIn Situ HybridizationMicrotubulesFluorescent Antibody TechniqueChromosomesBlotting, WesternReverse Transcriptase Polymerase Chain ReactionDrosophila melanogasterMice, Mutant StrainsSperm-Ovum InteractionsMice, Inbred ICRMembrane ProteinsNuclear EnvelopeTestosteroneMutationSequence Homology, Amino AcidCrosses, GeneticOrgan SpecificityGene Expression Regulation, DevelopmentalDNAGene Expression RegulationMice, Inbred StrainsNucleoproteinsProtein IsoformsDNA, ComplementaryMice, Inbred C57BLImmunoprecipitationHistocytochemistryTubulinGolgi ApparatusHomozygoteProtein BiosynthesisProtein TransportCloning, MolecularGene ExpressionCell DifferentiationElectrophoresis, Polyacrylamide Gel