Cell CycleCell Cycle ProteinsGap JunctionsIntercellular JunctionsTight JunctionsCell Cycle CheckpointsAdherens JunctionsNeuromuscular JunctionG1 PhaseMitosisCell DivisionS PhaseCyclinsMolecular Sequence DataCell LineApoptosisCell ProliferationMenstrual CycleCells, CulturedG2 PhaseBase SequenceRetinoblastoma ProteinSignal TransductionConnexinsCell Line, TumorCell DifferentiationCyclin-Dependent Kinase Inhibitor p21RNA, MessengerCyclin-Dependent Kinase Inhibitor p27MutationPhosphorylationFlow CytometryAmino Acid SequenceG2 Phase Cell Cycle CheckpointsDNA-Binding ProteinsConnexin 43Transcription FactorsModels, BiologicalTime FactorsProtein-Serine-Threonine KinasesGene Expression RegulationTumor Suppressor Protein p53DNA ReplicationDNACDC2 Protein KinaseG0 PhaseHeLa CellsNuclear ProteinsImmunohistochemistryTranscription, GeneticG1 Phase Cell Cycle CheckpointsTumor Cells, CulturedZonula Occludens-1 ProteinCyclin-Dependent Kinase 2Membrane ProteinsEsophagogastric JunctionCyclin D1Cell NucleusBlotting, WesternDNA DamageOccludinCyclin EProtein BindingGenes, cdcTransfectionGene ExpressionEpithelial CellsCyclin ACell SurvivalGene Expression Regulation, DevelopmentalInterphaseMicroscopy, FluorescenceCyclin BGene Expression ProfilingTumor Suppressor ProteinsCyclin-Dependent Kinase 4Cell CommunicationRecombinant Fusion ProteinsTight Junction ProteinsFibroblastsHolliday Junction ResolvasesSaccharomyces cerevisiaeCDC2-CDC28 KinasesReverse Transcriptase Polymerase Chain ReactionPhenotypeEstrous CycleFreeze FracturingBromodeoxyuridinecdc25 PhosphatasesPromoter Regions, GeneticCadherinsDown-RegulationE2F Transcription FactorsMicroscopy, ElectronSaccharomyces cerevisiae ProteinsKineticsFluorescent Antibody TechniqueMicrodissectionCarrier ProteinsRNA, Small Interfering