Receptors, ProgesteroneBreast NeoplasmsReceptors, EstrogenCell MembraneMembranesMembrane LipidsIntracellular MembranesMembrane PotentialsEstradiolMembranes, ArtificialReceptors, Cell SurfaceErythrocyte MembraneMembrane FluidityCorpus LuteumProgesterone CongenersCell Membrane PermeabilityMifepristoneProgestinsPregnancyEstrusBasement MembraneUterusCell LineLuteinizing HormoneCells, CulturedProtein BindingCattleOvariectomyMembrane Transport ProteinsMolecular Sequence DataLuteal PhaseSignal TransductionOvaryMembrane GlycoproteinsPregnancy, AnimalOvulationEndometriumEstrogensAmino Acid SequenceProtein TransportKineticsCarrier ProteinsHormone AntagonistsCalciumModels, BiologicalMicroscopy, ElectronTime FactorsLipid BilayersBinding, CompetitiveDinoprostRNA, MessengerBinding SitesMenstrual CycleEscherichia coliProtein Structure, TertiarySteroidsSheepHydroxyprogesteronesMutationChorionic GonadotropinElectrophoresis, Polyacrylamide GelImmunohistochemistryPseudopregnancyLuteal CellsBacterial ProteinsRabbitsMitochondrial MembranesFollicle Stimulating HormoneEndocytosisBase SequenceMolecular WeightGranulosa CellsGonanesDose-Response Relationship, Drug20-alpha-DihydroprogesteroneRecombinant ProteinsLiposomesOvarian FollicleDetergentsSynaptic MembranesProlactinGonadal Steroid HormonesCell FractionationBlotting, WesternOviductsCytosolRecombinant Fusion ProteinsMembrane ProteinsMicroscopy, FluorescenceReceptors, DrugNorpregnadienesHydrogen-Ion ConcentrationCytoplasmEndoplasmic ReticulumEscherichia coli ProteinsEstrous CycleCricetinaeBiological Transport, ActiveFollicular PhaseSolubility